{ "opd": "benikigai/plus-one", "commit": 6, "opd_version": "0.5.0", "layer": null, "question": null, "data": { "opd_version": "0.5.0", "extensions": [ { "id": "battery", "version": "0.1.0" } ], "card": { "product": "Plus One", "maker": "N+1 Labs", "maker_endorsed": true, "synthetic": true, "category": [ "agent-device", "consumer-electronics", "battery-powered", "wireless", "open-hardware" ], "revision_examined": "Plus One Core, generation one, concept rev B (decision 20; prototype in design, nothing built)", "units_examined": 0, "license": "CC-BY-4.0", "base_opd": null, "base_relation": null, "trust_level": "claimed", "visibility": "public", "product_page": "https://nplusonelabs.com/plus-one/", "metrics": { "observed_share": { "value": 0, "badge": "self-reported" }, "card_completeness": { "value": 1, "badge": "self-reported" }, "rebuild_check": { "value": true, "badge": "self-reported" }, "reproduction_agreement": { "value": null, "badge": "self-reported" } } }, "sources": [ { "id": "src:design-brief", "kind": "maker", "ref": "docs/design-brief.md", "sha256": "6f0dcfc631d99f9ef4cd184eec82128305918bf4bb15dcc02946ada9b75cc188" }, { "id": "src:cad", "kind": "maker", "ref": "parts/geometry.json", "sha256": "5b6ad4ee5fcc256b25ecd4360824c7d90ec5d3e81e139f7e742ac035deeb344a" }, { "id": "src:tracker-puck-spec", "kind": "maker", "ref": "nplus1labs/factory docs/prototype/spec-tracker-puck.md (the line and operation models this copies)" }, { "id": "src:firmware-research", "kind": "maker", "ref": "nplus1labs/research docs/research/2026-11-firmware/synthesis.md" }, { "id": "src:ec-1-lessons", "kind": "maker", "ref": "openproduct-co/opd-spec examples/ec-1.opd/issues (synthetic lessons this design takes on)" }, { "id": "src:module-datasheet", "kind": "maker", "ref": "Espressif ESP32-S3-WROOM-1 datasheet (public)" }, { "id": "src:factory-engine", "kind": "maker", "ref": "nplus1labs/factory at 9bc6753: engine/specs/plus_one_build.yaml and engine/examples/plus-one-demand (simulated from assumed values; uncalibrated)" }, { "id": "src:layout-study", "kind": "maker", "ref": "line/layouts/README.md", "sha256": "f41d3c6a6a559485111c50009d4cf913e2bcc092bef7e0f6be3973cd15fdddb7" }, { "id": "src:decisions", "kind": "maker", "ref": "nplus1labs/research docs/decisions.md: decision 24 (a MadeCell base) and decision 25 (the layout follows volume)" }, { "id": "src:dimension-direction", "kind": "maker", "ref": "openproduct-co/opd-spec branch feat/plus-one-parametric-cad: examples/plus-one.opd/docs/dimension-direction-2026-11-01.md (approved exterior direction; CAD rework open)" } ], "parts": [ { "id": "part:top-shell", "name": "Top shell", "material": { "value": "PC/ABS, graphite, soft-touch texture", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design choice" }, "process": { "value": "injection-moulded, 1-cavity tool", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design choice" }, "mass_g": { "value": 3.83, "unit": "g", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "from CAD volume at 1.15 g/cm3" }, "geometry": { "step": "parts/top-shell.step", "usd_prim": "/Product/TopShell", "fidelity": "reduced" } }, { "id": "part:ring-diffuser", "name": "Light-ring diffuser", "material": { "value": "PC, light-diffusing grade, lime tint", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design choice" }, "process": { "value": "injection-moulded, heat-staked into the top shell", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design choice" }, "mass_g": { "value": 0.69, "unit": "g", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "from CAD volume at 1.20 g/cm3" }, "geometry": { "step": "parts/ring-diffuser.step", "usd_prim": "/Product/RingDiffuser", "fidelity": "reduced" } }, { "id": "part:plus-button", "name": "Plus button", "material": { "value": "PC/ABS cap, pad-printed white plus", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design choice" }, "process": { "value": "injection-moulded, pad-printed", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design choice" }, "mass_g": { "value": 1.52, "unit": "g", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "from CAD volume at 1.15 g/cm3" }, "geometry": { "step": "parts/plus-button.step", "usd_prim": "/Product/PlusButton", "fidelity": "reduced" } }, { "id": "part:mic-gasket", "name": "Mic gasket", "material": { "value": "silicone foam, acoustic grade", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design choice" }, "process": { "value": "die-cut, adhesive-backed", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design choice" }, "mass_g": { "value": 0.01, "unit": "g", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design target" }, "geometry": { "step": "parts/mic-gasket.step", "usd_prim": "/Product/MicGasket_1", "fidelity": "envelope" } }, { "id": "part:main-pcba", "name": "Main board (PCBA)", "material": { "value": "FR-4, 4 layers, 0.8 mm, ENIG, round 52 mm", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design choice" }, "process": { "value": "bought assembled from the EMS, tested before shipping", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design choice" }, "mass_g": { "value": 6, "unit": "g", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design target" }, "geometry": { "step": "parts/main-pcba.step", "usd_prim": "/Product/MainPCBA", "fidelity": "envelope" } }, { "id": "part:speaker", "name": "Speaker, 12 mm thin", "material": { "value": "micro speaker, 12 mm, 3 mm tall, 8 ohm, 0.5 W", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design choice" }, "process": { "value": "bought assembled", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design choice" }, "mass_g": { "value": 1.2, "unit": "g", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design target" }, "geometry": { "step": "parts/speaker.step", "usd_prim": "/Product/Speaker", "fidelity": "envelope" } }, { "id": "part:haptic-motor", "name": "Haptic motor, 7 mm coin", "material": { "value": "coin LRA, 7 mm, 2.5 mm tall", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design choice" }, "process": { "value": "bought assembled, adhesive-backed", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design choice" }, "mass_g": { "value": 0.6, "unit": "g", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design target" }, "geometry": { "step": "parts/haptic-motor.step", "usd_prim": "/Product/HapticMotor", "fidelity": "envelope" } }, { "id": "part:battery", "name": "Li-ion cell with protection", "material": { "value": "lithium-ion polymer, 28 x 16 x 3.5 mm, with protection board and lead; sits beside the module under the board", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design choice" }, "process": { "value": "bought assembled with a connector on the lead", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design choice" }, "mass_g": { "value": 3.5, "unit": "g", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design target" }, "geometry": { "step": "parts/battery.step", "usd_prim": "/Product/Battery", "fidelity": "envelope" } }, { "id": "part:battery-foam", "name": "Battery foam tape", "material": { "value": "PU foam, 0.1 mm, double-sided acrylic", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design choice" }, "process": { "value": "die-cut", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design choice" }, "mass_g": { "value": 0.1, "unit": "g", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design target" }, "geometry": { "step": "parts/battery-foam.step", "usd_prim": "/Product/BatteryFoam", "fidelity": "envelope" } }, { "id": "part:base", "name": "Base: the interface", "material": { "value": "PC/ABS, graphite", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design choice" }, "process": { "value": "injection-moulded with three twist-lock lugs inside the rim, an alignment key and pad seats; snaps to the top shell", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design choice" }, "mass_g": { "value": 3.51, "unit": "g", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "from CAD volume at 1.15 g/cm3" }, "geometry": { "step": "parts/base.step", "usd_prim": "/Product/Base", "fidelity": "reduced" } }, { "id": "part:magnet-ring", "name": "Magnet ring", "material": { "value": "NdFeB arc segments in a ring sized for magnetic phone mounts and chargers; exact size and polarity still to be checked against the WPC spec", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design choice" }, "process": { "value": "bought as a ring assembly; bonded into the base pocket", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design choice" }, "mass_g": { "value": 4.46, "unit": "g", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "from CAD volume at 7.5 g/cm3" }, "geometry": { "step": "parts/magnet-ring.step", "usd_prim": "/Product/MagnetRing", "fidelity": "envelope" } }, { "id": "part:qi-coil", "name": "Wireless charging coil and ferrite", "material": { "value": "copper coil, 37 mm, on a ferrite sheet; sits inside the magnet ring", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design choice" }, "process": { "value": "bought; meets the board through two spring contacts", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design choice" }, "mass_g": { "value": 2, "unit": "g", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design target" }, "geometry": { "step": "parts/qi-coil.step", "usd_prim": "/Product/QiCoil", "fidelity": "envelope" } }, { "id": "part:pogo-pad", "name": "Pogo pad", "material": { "value": "brass, gold-plated, 2.4 mm", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design choice" }, "process": { "value": "insert-moulded into the base", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design choice" }, "mass_g": { "value": 0.01, "unit": "g", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design target" }, "geometry": { "step": "parts/pogo-pad.step", "usd_prim": "/Product/PogoPad_1", "fidelity": "envelope" } }, { "id": "part:board-screw", "name": "Board screw, 2 mm thread-forming for plastics", "material": { "value": "steel, black zinc", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design choice" }, "process": { "value": "bought", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design choice" }, "mass_g": { "value": 0.1, "unit": "g", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "from CAD volume at 7.85 g/cm3" }, "geometry": { "step": "parts/board-screw.step", "usd_prim": "/Product/BoardScrew_1", "fidelity": "reduced" } }, { "id": "part:esp32-s3-module", "name": "ESP32-S3 module, 16 MB flash, 8 MB PSRAM", "material": { "value": "ESP32-S3-WROOM-1 class module with PCB antenna, shielded", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief", "src:module-datasheet" ], "note": "design choice" }, "process": { "value": "purchased-component, placed by the EMS", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design choice" }, "geometry": { "step": "parts/esp32-s3-module.step", "usd_prim": "/Product/PCBA_ESP32S3Module", "fidelity": "envelope" } }, { "id": "part:mems-mic", "name": "MEMS microphone, bottom port", "material": { "value": "digital PDM MEMS mic", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design choice" }, "process": { "value": "purchased-component, placed by the EMS", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design choice" }, "geometry": { "step": "parts/mems-mic.step", "usd_prim": "/Product/PCBA_MEMSMic_1", "fidelity": "envelope" } }, { "id": "part:audio-amp", "name": "Class-D amp with a capped output", "material": { "value": "mono I2S class-D amp; gain and current limited in hardware", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design choice" }, "process": { "value": "purchased-component, placed by the EMS", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design choice" }, "geometry": { "step": "parts/audio-amp.step", "usd_prim": "/Product/PCBA_AudioAmp", "fidelity": "envelope" } }, { "id": "part:haptic-driver", "name": "Haptic driver", "material": { "value": "LRA driver IC", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design choice" }, "process": { "value": "purchased-component, placed by the EMS", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design choice" }, "geometry": { "step": "parts/haptic-driver.step", "usd_prim": "/Product/PCBA_HapticDriver", "fidelity": "envelope" } }, { "id": "part:imu", "name": "6-axis motion sensor", "material": { "value": "MEMS accelerometer and gyroscope", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design choice" }, "process": { "value": "purchased-component, placed by the EMS", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design choice" }, "geometry": { "step": "parts/imu.step", "usd_prim": "/Product/PCBA_IMU", "fidelity": "envelope" } }, { "id": "part:fuel-gauge", "name": "Fuel gauge", "material": { "value": "single-cell fuel gauge IC", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design choice" }, "process": { "value": "purchased-component, placed by the EMS", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design choice" }, "geometry": { "step": "parts/fuel-gauge.step", "usd_prim": "/Product/PCBA_FuelGauge", "fidelity": "envelope" } }, { "id": "part:charger", "name": "Charger with power path", "material": { "value": "single-cell Li-ion charger IC", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design choice" }, "process": { "value": "purchased-component, placed by the EMS", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design choice" }, "geometry": { "step": "parts/charger.step", "usd_prim": "/Product/PCBA_Charger", "fidelity": "envelope" } }, { "id": "part:wireless-receiver", "name": "Wireless charging receiver", "material": { "value": "receiver IC; charges the cell, never transmits", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design choice" }, "process": { "value": "purchased-component, placed by the EMS", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design choice" }, "geometry": { "step": "parts/wireless-receiver.step", "usd_prim": "/Product/PCBA_WirelessReceiver", "fidelity": "envelope" } }, { "id": "part:ring-led", "name": "RGB LED, addressable", "material": { "value": "2 x 2 mm addressable RGB LED", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design choice" }, "process": { "value": "purchased-component, placed by the EMS", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design choice" }, "geometry": { "step": "parts/ring-led.step", "usd_prim": "/Product/PCBA_RingLED_1", "fidelity": "envelope" } }, { "id": "part:tact-switch", "name": "Tactile switch under the plus", "material": { "value": "6 x 6 mm tactile switch", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design choice" }, "process": { "value": "purchased-component, placed by the EMS", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design choice" }, "geometry": { "step": "parts/tact-switch.step", "usd_prim": "/Product/PCBA_TactSwitch", "fidelity": "envelope" } }, { "id": "part:usb-c", "name": "USB-C receptacle, mid-mount", "material": { "value": "16-pin USB-C receptacle", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design choice" }, "process": { "value": "purchased-component, placed by the EMS", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design choice" }, "geometry": { "step": "parts/usb-c.step", "usd_prim": "/Product/PCBA_USBC", "fidelity": "envelope" } }, { "id": "part:boot-button", "name": "BOOT button", "material": { "value": "side-push tactile switch", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design choice" }, "process": { "value": "purchased-component, placed by the EMS", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design choice" }, "geometry": { "step": "parts/boot-button.step", "usd_prim": "/Product/PCBA_BootButton", "fidelity": "envelope" } }, { "id": "part:power-switch", "name": "Hardware power-off switch", "material": { "value": "slide switch in series with the cell", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design choice" }, "process": { "value": "purchased-component, placed by the EMS", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design choice" }, "geometry": { "step": "parts/power-switch.step", "usd_prim": "/Product/PCBA_PowerSwitch", "fidelity": "envelope" } }, { "id": "part:qwiic-connector", "name": "Qwiic connector", "material": { "value": "4-pin 1.0 mm JST SH", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design choice" }, "process": { "value": "purchased-component, placed by the EMS", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design choice" }, "geometry": { "step": "parts/qwiic-connector.step", "usd_prim": "/Product/PCBA_Qwiic", "fidelity": "envelope" } }, { "id": "part:battery-connector", "name": "Battery connector", "material": { "value": "2-pin 1.25 mm wire-to-board", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design choice" }, "process": { "value": "purchased-component, placed by the EMS", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design choice" }, "geometry": { "step": "parts/battery-connector.step", "usd_prim": "/Product/PCBA_BatteryConnector", "fidelity": "envelope" } }, { "id": "part:pcb", "name": "Bare board, 4 layers", "material": { "value": "FR-4, Tg 150, round 53 mm", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design choice" }, "process": { "value": "purchased-component, placed by the EMS", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design choice" }, "geometry": { "step": "parts/pcb.step", "usd_prim": "/Product/PCBA_PCB", "fidelity": "envelope" } }, { "id": "part:passives", "name": "Passives", "material": { "value": "MLCC, resistors, ferrites; count not fixed yet", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design choice" }, "process": { "value": "purchased-component, placed by the EMS", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design choice" }, "geometry": { "step": "parts/passives.step", "usd_prim": "/Product/PCBA_Passives", "fidelity": "envelope" } }, { "id": "part:light-sensor", "name": "Ambient light sensor (Plus One+)", "material": { "value": "digital ambient light sensor", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "Plus One+ only; footprint empty on Core" }, "process": { "value": "purchased-component", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design choice" }, "geometry": { "step": "parts/light-sensor.step", "fidelity": "envelope" } }, { "id": "part:nfc-tag", "name": "NFC tag (Plus One+)", "material": { "value": "NFC Forum type 2 tag IC with PCB antenna", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "Plus One+ only; footprint empty on Core" }, "process": { "value": "purchased-component", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design choice" }, "geometry": { "step": "parts/nfc-tag.step", "fidelity": "envelope" } }, { "id": "part:debug-jumper", "name": "Power test jumper and debug pads (Plus One+)", "material": { "value": "0 ohm jumper and test pads", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "Plus One+ only; footprint empty on Core" }, "process": { "value": "purchased-component", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design choice" }, "geometry": { "step": "parts/debug-jumper.step", "fidelity": "envelope" } }, { "id": "part:retail-box", "name": "Retail box", "material": { "value": "SBS board, printed", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design choice" }, "process": { "value": "bought", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design choice" }, "mass_g": { "value": 30, "unit": "g", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design target" }, "geometry": { "step": "parts/retail-box.step", "fidelity": "envelope" } }, { "id": "part:pulp-tray", "name": "Pulp tray", "material": { "value": "moulded pulp", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design choice" }, "process": { "value": "bought", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design choice" }, "mass_g": { "value": 8, "unit": "g", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design target" }, "geometry": { "step": "parts/pulp-tray.step", "fidelity": "envelope" } }, { "id": "part:usb-cable", "name": "USB-C cable, 0.5 m", "material": { "value": "TPE jacket, copper", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design choice" }, "process": { "value": "bought", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design choice" }, "mass_g": { "value": 15, "unit": "g", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design target" }, "geometry": { "step": "parts/usb-cable.step", "fidelity": "envelope" } }, { "id": "part:quick-card", "name": "Quick start card with the unit QR", "material": { "value": "coated card, printed", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design choice" }, "process": { "value": "bought", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design choice" }, "mass_g": { "value": 3, "unit": "g", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design target" }, "geometry": { "step": "parts/quick-card.step", "fidelity": "envelope" } } ], "assemblies": [ { "id": "asm:top-sub", "name": "Top shell with diffuser, plus button and mic gaskets" }, { "id": "asm:core", "name": "Top shell sub-assembly with board, speaker, haptic and battery" }, { "id": "asm:base", "name": "Base with the magnet ring, charging coil and pads" }, { "id": "asm:plus-one", "name": "Plus One, sealed, nothing attached" }, { "id": "asm:packed", "name": "Packed unit with cable and card; no back ships" } ], "bom": [ { "item": "asm:packed", "parent": null, "qty": 1 }, { "item": "asm:plus-one", "parent": "asm:packed", "qty": 1 }, { "item": "part:retail-box", "parent": "asm:packed", "qty": 1, "supplier": "sup:pack" }, { "item": "part:pulp-tray", "parent": "asm:packed", "qty": 1, "supplier": "sup:pack" }, { "item": "part:usb-cable", "parent": "asm:packed", "qty": 1, "supplier": "sup:pack" }, { "item": "part:quick-card", "parent": "asm:packed", "qty": 1, "supplier": "sup:pack" }, { "item": "asm:core", "parent": "asm:plus-one", "qty": 1 }, { "item": "asm:base", "parent": "asm:plus-one", "qty": 1 }, { "item": "part:base", "parent": "asm:base", "qty": 1, "supplier": "sup:shell-moulder" }, { "item": "part:magnet-ring", "parent": "asm:base", "qty": 1, "supplier": "sup:magnet-vendor" }, { "item": "part:qi-coil", "parent": "asm:base", "qty": 1, "supplier": "sup:coil-vendor" }, { "item": "part:pogo-pad", "parent": "asm:base", "qty": 5, "supplier": "sup:shell-moulder" }, { "item": "asm:top-sub", "parent": "asm:core", "qty": 1 }, { "item": "part:main-pcba", "parent": "asm:core", "qty": 1, "supplier": "sup:ems" }, { "item": "part:board-screw", "parent": "asm:core", "qty": 3, "supplier": "sup:fastener" }, { "item": "part:speaker", "parent": "asm:core", "qty": 1, "supplier": "sup:audio-vendor" }, { "item": "part:haptic-motor", "parent": "asm:core", "qty": 1, "supplier": "sup:haptic-vendor" }, { "item": "part:battery", "parent": "asm:core", "qty": 1, "supplier": "sup:cell-maker" }, { "item": "part:battery-foam", "parent": "asm:core", "qty": 1, "supplier": "sup:converter" }, { "item": "part:top-shell", "parent": "asm:top-sub", "qty": 1, "supplier": "sup:shell-moulder" }, { "item": "part:ring-diffuser", "parent": "asm:top-sub", "qty": 1, "supplier": "sup:shell-moulder" }, { "item": "part:plus-button", "parent": "asm:top-sub", "qty": 1, "supplier": "sup:shell-moulder" }, { "item": "part:mic-gasket", "parent": "asm:top-sub", "qty": 2, "supplier": "sup:converter" }, { "item": "part:esp32-s3-module", "parent": "part:main-pcba", "qty": 1, "supplier": "sup:module-vendor" }, { "item": "part:mems-mic", "parent": "part:main-pcba", "qty": 2, "supplier": "sup:chip-distributor" }, { "item": "part:audio-amp", "parent": "part:main-pcba", "qty": 1, "supplier": "sup:chip-distributor" }, { "item": "part:haptic-driver", "parent": "part:main-pcba", "qty": 1, "supplier": "sup:chip-distributor" }, { "item": "part:imu", "parent": "part:main-pcba", "qty": 1, "supplier": "sup:chip-distributor" }, { "item": "part:fuel-gauge", "parent": "part:main-pcba", "qty": 1, "supplier": "sup:chip-distributor" }, { "item": "part:charger", "parent": "part:main-pcba", "qty": 1, "supplier": "sup:chip-distributor" }, { "item": "part:wireless-receiver", "parent": "part:main-pcba", "qty": 1, "supplier": "sup:chip-distributor" }, { "item": "part:ring-led", "parent": "part:main-pcba", "qty": 12, "supplier": "sup:chip-distributor" }, { "item": "part:tact-switch", "parent": "part:main-pcba", "qty": 1, "supplier": "sup:chip-distributor" }, { "item": "part:usb-c", "parent": "part:main-pcba", "qty": 1, "supplier": "sup:chip-distributor" }, { "item": "part:boot-button", "parent": "part:main-pcba", "qty": 1, "supplier": "sup:chip-distributor" }, { "item": "part:power-switch", "parent": "part:main-pcba", "qty": 1, "supplier": "sup:chip-distributor" }, { "item": "part:qwiic-connector", "parent": "part:main-pcba", "qty": 1, "supplier": "sup:chip-distributor" }, { "item": "part:battery-connector", "parent": "part:main-pcba", "qty": 1, "supplier": "sup:chip-distributor" }, { "item": "part:pcb", "parent": "part:main-pcba", "qty": 1, "supplier": "sup:ems" }, { "item": "part:passives", "parent": "part:main-pcba", "qty": 1, "supplier": "sup:chip-distributor" } ], "suppliers": [ { "id": "sup:shell-moulder", "name": { "value": "To be sourced: shell moulder", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "not sourced yet" } }, { "id": "sup:ems", "name": { "value": "To be sourced: EMS for the main board", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "not sourced yet" } }, { "id": "sup:module-vendor", "name": { "value": "Espressif or an authorised distributor", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "not sourced yet" } }, { "id": "sup:chip-distributor", "name": { "value": "To be sourced: component distributor", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "not sourced yet" } }, { "id": "sup:audio-vendor", "name": { "value": "To be sourced: micro speaker maker", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "not sourced yet" } }, { "id": "sup:haptic-vendor", "name": { "value": "To be sourced: LRA maker", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "not sourced yet" } }, { "id": "sup:cell-maker", "name": { "value": "To be sourced: Li-ion cell maker", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "not sourced yet" } }, { "id": "sup:converter", "name": { "value": "To be sourced: die-cut converter", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "not sourced yet" } }, { "id": "sup:magnet-vendor", "name": { "value": "To be sourced: magnet maker", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "not sourced yet" } }, { "id": "sup:fastener", "name": { "value": "To be sourced: fastener maker", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "not sourced yet" } }, { "id": "sup:coil-vendor", "name": { "value": "To be sourced: wireless charging coil maker", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "not sourced yet" } }, { "id": "sup:pack", "name": { "value": "To be sourced: packaging maker", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "not sourced yet" } } ], "operations": [ { "id": "op:diffuser-place", "name": "Seat the light-ring diffuser in the top shell", "type": "place", "inputs": [ "part:top-shell", "part:ring-diffuser" ], "output": "asm:top-sub", "station": "sta:s1", "method": { "value": "by hand onto six stake posts", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "proposed" }, "fixture": { "value": "ring nest", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "proposed" }, "cycle_time_s": { "value": 5, "unit": "s", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief", "src:tracker-puck-spec" ], "note": "target from time-study estimates of similar operations" } }, { "id": "op:diffuser-stake", "name": "Heat-stake the diffuser", "type": "heat-stake", "inputs": [ "asm:top-sub" ], "output": "asm:top-sub", "station": "sta:s1", "method": { "value": "six-post hot-air cold-stake, timed", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "proposed" }, "fixture": { "value": "heat staker", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "proposed" }, "cycle_time_s": { "value": 9, "unit": "s", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief", "src:tracker-puck-spec" ], "note": "target from time-study estimates of similar operations" } }, { "id": "op:button-place", "name": "Fit the plus button", "type": "place", "inputs": [ "asm:top-sub", "part:plus-button" ], "output": "asm:top-sub", "station": "sta:s1", "method": { "value": "by hand, flange under the skin", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "proposed" }, "fixture": { "value": "ring nest", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "proposed" }, "cycle_time_s": { "value": 4, "unit": "s", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief", "src:tracker-puck-spec" ], "note": "target from time-study estimates of similar operations" } }, { "id": "op:gasket-place", "name": "Place the two mic gaskets over the ports", "type": "place", "inputs": [ "asm:top-sub", "part:mic-gasket" ], "output": "asm:top-sub", "station": "sta:s1", "method": { "value": "jig-located, liner peeled", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "proposed" }, "fixture": { "value": "gasket jig", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "proposed" }, "cycle_time_s": { "value": 6, "unit": "s", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief", "src:tracker-puck-spec" ], "note": "target from time-study estimates of similar operations" } }, { "id": "op:board-place", "name": "Place the main board in the top shell", "type": "place", "inputs": [ "asm:top-sub", "part:main-pcba" ], "output": "asm:core", "station": "sta:s2", "method": { "value": "by hand onto three bosses, LEDs to the ring", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "proposed" }, "fixture": { "value": "top-shell nest", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "proposed" }, "cycle_time_s": { "value": 10, "unit": "s", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief", "src:tracker-puck-spec" ], "note": "target from time-study estimates of similar operations" } }, { "id": "op:board-screw", "name": "Drive three board screws", "type": "screw", "inputs": [ "asm:core", "part:board-screw" ], "output": "asm:core", "station": "sta:s3", "method": { "value": "thread-forming, torque to angle window", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "proposed" }, "fixture": { "value": "top-shell nest", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "proposed" }, "cycle_time_s": { "value": 15, "unit": "s", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief", "src:tracker-puck-spec" ], "note": "target from time-study estimates of similar operations" } }, { "id": "op:adhesive-dispense", "name": "Dispense adhesive for the speaker and haptic", "type": "adhesive", "inputs": [ "asm:core" ], "output": "asm:core", "station": "sta:s4", "method": { "value": "two beads, camera-checked", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "proposed" }, "fixture": { "value": "dispense nest", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "proposed" }, "cycle_time_s": { "value": 8, "unit": "s", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief", "src:tracker-puck-spec" ], "note": "target from time-study estimates of similar operations" } }, { "id": "op:speaker-place", "name": "Place the speaker", "type": "place", "inputs": [ "asm:core", "part:speaker" ], "output": "asm:core", "station": "sta:s4", "method": { "value": "jig-located, 5 s hold", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "proposed" }, "fixture": { "value": "placement jig", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "proposed" }, "cycle_time_s": { "value": 5, "unit": "s", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief", "src:tracker-puck-spec" ], "note": "target from time-study estimates of similar operations" } }, { "id": "op:haptic-place", "name": "Place the haptic motor", "type": "place", "inputs": [ "asm:core", "part:haptic-motor" ], "output": "asm:core", "station": "sta:s4", "method": { "value": "jig-located", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "proposed" }, "fixture": { "value": "placement jig", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "proposed" }, "cycle_time_s": { "value": 5, "unit": "s", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief", "src:tracker-puck-spec" ], "note": "target from time-study estimates of similar operations" } }, { "id": "op:battery-mate", "name": "Mate the battery connector", "type": "connector-mate", "inputs": [ "asm:core", "part:battery" ], "output": "asm:core", "station": "sta:s5", "method": { "value": "seat, then a 3 N tug check", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "proposed" }, "fixture": { "value": "connector seating tool", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "proposed" }, "cycle_time_s": { "value": 8, "unit": "s", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief", "src:tracker-puck-spec" ], "note": "target from time-study estimates of similar operations" } }, { "id": "op:battery-place", "name": "Place the battery on foam tape", "type": "place", "inputs": [ "asm:core", "part:battery-foam" ], "output": "asm:core", "station": "sta:s5", "method": { "value": "locator, lead routed in its channel", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "proposed" }, "fixture": { "value": "battery locator", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "proposed" }, "cycle_time_s": { "value": 6, "unit": "s", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief", "src:tracker-puck-spec" ], "note": "target from time-study estimates of similar operations" } }, { "id": "op:ring-bond", "name": "Bond the magnet ring into the base", "type": "adhesive", "inputs": [ "part:base", "part:magnet-ring" ], "output": "asm:base", "station": "sta:s6", "method": { "value": "keyed fixture, polarity checked before the press", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "proposed" }, "fixture": { "value": "ring bonding fixture", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "proposed" }, "cycle_time_s": { "value": 8, "unit": "s", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief", "src:tracker-puck-spec" ], "note": "target from time-study estimates of similar operations" } }, { "id": "op:coil-place", "name": "Place the charging coil and ferrite inside the ring", "type": "place", "inputs": [ "asm:base", "part:qi-coil" ], "output": "asm:base", "station": "sta:s6", "method": { "value": "keyed to the base, adhesive-backed", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "proposed" }, "fixture": { "value": "ring bonding fixture", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "proposed" }, "cycle_time_s": { "value": 6, "unit": "s", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief", "src:tracker-puck-spec" ], "note": "target from time-study estimates of similar operations" } }, { "id": "op:pad-press", "name": "Press the five pogo pads into the base", "type": "place", "inputs": [ "asm:base", "part:pogo-pad" ], "output": "asm:base", "station": "sta:s6", "method": { "value": "press to a hard stop", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "proposed" }, "fixture": { "value": "pad press", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "proposed" }, "cycle_time_s": { "value": 6, "unit": "s", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief", "src:tracker-puck-spec" ], "note": "target from time-study estimates of similar operations" } }, { "id": "op:base-close", "name": "Close the base onto the core", "type": "snap-fit", "inputs": [ "asm:core", "asm:base" ], "output": "asm:plus-one", "station": "sta:s6", "method": { "value": "three snaps, force-monitored press", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "proposed" }, "fixture": { "value": "closing press", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "proposed" }, "cycle_time_s": { "value": 8, "unit": "s", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief", "src:tracker-puck-spec" ], "note": "target from time-study estimates of similar operations" } }, { "id": "op:polarity-check", "name": "Check ring polarity, pad height and the key", "type": "inspect", "inputs": [ "asm:plus-one" ], "output": "asm:plus-one", "station": "sta:s6", "method": { "value": "polarity gauge and height gauge", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "proposed" }, "fixture": { "value": "pad press", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "proposed" }, "cycle_time_s": { "value": 4, "unit": "s", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief", "src:tracker-puck-spec" ], "note": "target from time-study estimates of similar operations" } }, { "id": "op:flash-provision", "name": "Flash firmware and provision the unit ID", "type": "flash", "inputs": [ "asm:plus-one" ], "output": "asm:plus-one", "station": "sta:s7", "method": { "value": "over USB-C; unit ID written to eFuse", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "proposed" }, "fixture": { "value": "USB-C pogo fixture", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "proposed" }, "cycle_time_s": { "value": 24, "unit": "s", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief", "src:tracker-puck-spec" ], "note": "target from time-study estimates of similar operations" } }, { "id": "op:mic-cal", "name": "Calibrate the two mics", "type": "test", "inputs": [ "asm:plus-one" ], "output": "asm:plus-one", "station": "sta:s7", "method": { "value": "reference tone in an acoustic box", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "proposed" }, "fixture": { "value": "acoustic box", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "proposed" }, "cycle_time_s": { "value": 10, "unit": "s", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief", "src:tracker-puck-spec" ], "note": "target from time-study estimates of similar operations" } }, { "id": "op:imu-cal", "name": "Calibrate the motion sensor", "type": "test", "inputs": [ "asm:plus-one" ], "output": "asm:plus-one", "station": "sta:s7", "method": { "value": "six-face tilt", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "proposed" }, "fixture": { "value": "tilt table", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "proposed" }, "cycle_time_s": { "value": 6, "unit": "s", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief", "src:tracker-puck-spec" ], "note": "target from time-study estimates of similar operations" } }, { "id": "op:functional-test", "name": "Functional test: button, touch, ring, haptic, IMU, wired and wireless charge, audio loopback, RF check", "type": "test", "inputs": [ "asm:plus-one" ], "output": "asm:plus-one", "station": "sta:s8", "method": { "value": "scripted test over USB; RF in a shield box; a reference wireless charger", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "proposed" }, "fixture": { "value": "functional tester", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "proposed" }, "cycle_time_s": { "value": 40, "unit": "s", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief", "src:tracker-puck-spec" ], "note": "target from time-study estimates of similar operations" } }, { "id": "op:laser-mark", "name": "Laser-mark the unit QR on the base rim", "type": "label", "inputs": [ "asm:plus-one" ], "output": "asm:plus-one", "station": "sta:s8", "method": { "value": "fibre laser, then a read-back", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "proposed" }, "fixture": { "value": "laser marker", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "proposed" }, "cycle_time_s": { "value": 6, "unit": "s", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief", "src:tracker-puck-spec" ], "note": "target from time-study estimates of similar operations" } }, { "id": "op:pack", "name": "Pack with the cable and card; no back ships", "type": "pack", "inputs": [ "asm:plus-one", "part:retail-box", "part:pulp-tray", "part:usb-cable", "part:quick-card" ], "output": "asm:packed", "station": "sta:s8", "method": { "value": "by hand", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "proposed" }, "fixture": { "value": "pack bench", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "proposed" }, "cycle_time_s": { "value": 10, "unit": "s", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief", "src:tracker-puck-spec" ], "note": "target from time-study estimates of similar operations" } } ], "stations": [ { "id": "sta:s1", "name": "Top shell sub-assembly", "type": "assembly", "equipment": [ { "value": "hot-air cold staker with six nozzles, a punch-travel monitor and a ring nest", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "proposed" }, { "value": "mic gasket placement jig", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "proposed" } ], "operators": { "value": 1, "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "proposed" }, "layout_usd_prim": "/Line/S1", "isa95_work_center": "PlusOne-Line/S1", "data_interface": "unknown" }, { "id": "sta:s2", "name": "Place main board", "type": "assembly", "equipment": [ { "value": "top-shell nest, face down", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "proposed" } ], "operators": { "value": 1, "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "proposed" }, "layout_usd_prim": "/Line/S2", "isa95_work_center": "PlusOne-Line/S2", "data_interface": "unknown" }, { "id": "sta:s3", "name": "Drive board screws", "type": "assembly", "equipment": [ { "value": "electric screwdriver on a torque arm with torque and angle monitoring", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "proposed" }, { "value": "screw presenter", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "proposed" } ], "operators": { "value": 1, "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "proposed" }, "layout_usd_prim": "/Line/S3", "isa95_work_center": "PlusOne-Line/S3", "data_interface": "unknown" }, { "id": "sta:s4", "name": "Speaker and haptic", "type": "assembly", "equipment": [ { "value": "bench dispenser with a bead camera", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "proposed" }, { "value": "placement jig", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "proposed" } ], "operators": { "value": 1, "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "proposed" }, "layout_usd_prim": "/Line/S4", "isa95_work_center": "PlusOne-Line/S4", "data_interface": "unknown" }, { "id": "sta:s5", "name": "Battery", "type": "assembly", "equipment": [ { "value": "connector seating tool with a tug check", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "proposed" }, { "value": "battery locator", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "proposed" } ], "operators": { "value": 1, "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "proposed" }, "layout_usd_prim": "/Line/S5", "isa95_work_center": "PlusOne-Line/S5", "data_interface": "unknown" }, { "id": "sta:s6", "name": "Close the base", "type": "assembly", "equipment": [ { "value": "ring bonding fixture with a polarity gauge", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "proposed" }, { "value": "pad press with a height gauge", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "proposed" }, { "value": "closing press with force monitoring", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "proposed" } ], "operators": { "value": 1, "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "proposed" }, "layout_usd_prim": "/Line/S6", "isa95_work_center": "PlusOne-Line/S6", "data_interface": "unknown" }, { "id": "sta:s7", "name": "Flash, provision, calibrate", "type": "test", "equipment": [ { "value": "USB-C pogo fixture", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "proposed" }, { "value": "flashing PC", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "proposed" }, { "value": "acoustic box for mic calibration (94 dB SPL at 1 kHz)", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "proposed" }, { "value": "six-face tilt table for IMU calibration", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "proposed" } ], "operators": { "value": 1, "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "proposed" }, "layout_usd_prim": "/Line/S7", "isa95_work_center": "PlusOne-Line/S7", "data_interface": "unknown" }, { "id": "sta:s8", "name": "Functional test, mark, pack", "type": "test", "equipment": [ { "value": "functional tester with an RF shield box", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "proposed" }, { "value": "reference wireless charger", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "proposed" }, { "value": "laser marker", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "proposed" }, { "value": "pack bench", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "proposed" } ], "operators": { "value": 1, "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "proposed" }, "layout_usd_prim": "/Line/S8", "isa95_work_center": "PlusOne-Line/S8", "data_interface": "unknown" } ], "inspection_plans": [ { "id": "insp:shell-iqc", "station": "sta:s1", "stage": "iqc", "item": "part:top-shell", "characteristic": "Diameter, ring slot width, cosmetic grade A", "method": { "value": "caliper, pin gauge, light booth", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "proposed" }, "sampling": { "standard": "ANSI/ASQ Z1.4", "inspection_level": "II", "aql": 1, "lot_size_range": [ 1201, 3200 ], "sample_size": 125, "basis": { "value": "proposed plan; set at the pilot build", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ] } } }, { "id": "insp:pcba-iqc", "station": "sta:s2", "stage": "iqc", "item": "part:main-pcba", "characteristic": "EMS test record present; boots and enumerates over USB", "method": { "value": "sample power-on", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "proposed" }, "sampling": { "standard": "ANSI/ASQ Z1.4", "inspection_level": "S-3", "aql": 0.65, "lot_size_range": [ 1201, 3200 ], "sample_size": 32, "basis": { "value": "proposed plan; set at the pilot build", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ] } } }, { "id": "insp:cell-iqc", "station": "sta:s5", "stage": "iqc", "item": "part:battery", "characteristic": "Open-circuit voltage 3.7 to 3.9 V; no swelling", "method": { "value": "OCV meter, thickness gauge", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "proposed" }, "sampling": { "standard": "ANSI/ASQ Z1.4", "inspection_level": "II", "aql": 0.4, "lot_size_range": [ 501, 1200 ], "sample_size": 80, "basis": { "value": "proposed plan; set at the pilot build", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ] } } }, { "id": "insp:stake-ipqc", "station": "sta:s1", "stage": "ipqc", "item": "part:ring-diffuser", "characteristic": "Stake pull-off force", "method": { "value": "push-out test, first five each shift", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "proposed" }, "sampling": { "standard": "other", "sample_size": 5, "basis": { "value": "proposed plan; set at the pilot build", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ] } } }, { "id": "insp:oqc-audit", "station": "sta:s8", "stage": "oqc", "item": "asm:packed", "characteristic": "Packed unit complete; boots; QR reads", "method": { "value": "audit", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "proposed" }, "sampling": { "standard": "ANSI/ASQ Z1.4", "inspection_level": "II", "aql": 0.65, "lot_size_range": [ 1201, 3200 ], "sample_size": 125, "basis": { "value": "proposed plan; set at the pilot build", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ] } } } ], "tests": [ { "id": "test:flash-verify", "station": "sta:s7", "name": "Firmware image flashed and verified", "measures": "image hash" }, { "id": "test:unit-id", "station": "sta:s7", "name": "Unit ID provisioned once", "measures": "eFuse read-back" }, { "id": "test:mic-sensitivity", "station": "sta:s7", "name": "Mic sensitivity after calibration", "measures": "dBFS at 94 dB SPL, 1 kHz", "lower": { "value": -28, "unit": "dBFS", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "proposed limit" }, "upper": { "value": -24, "unit": "dBFS", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "proposed limit" } }, { "id": "test:imu-bias", "station": "sta:s7", "name": "Motion sensor bias after calibration", "measures": "accelerometer bias", "upper": { "value": 0.05, "unit": "g", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "proposed limit" } }, { "id": "test:button", "station": "sta:s8", "name": "Plus button actuation", "measures": "switch closes, debounced" }, { "id": "test:touch-ring", "station": "sta:s8", "name": "Touch ring delta", "measures": "touch counts on a reference finger", "lower": { "value": 30, "unit": "%", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "proposed limit" } }, { "id": "test:ring-leds", "station": "sta:s8", "name": "Light ring colours", "measures": "camera colour check per LED" }, { "id": "test:haptic", "station": "sta:s8", "name": "Haptic drive current", "measures": "mA at rated drive", "lower": { "value": 40, "unit": "mA", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "proposed limit" }, "upper": { "value": 90, "unit": "mA", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "proposed limit" } }, { "id": "test:charge", "station": "sta:s8", "name": "Charge current over USB-C", "measures": "mA from USB at 5 V", "lower": { "value": 100, "unit": "mA", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "proposed limit" }, "upper": { "value": 300, "unit": "mA", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "proposed limit" } }, { "id": "test:wireless-charge", "station": "sta:s8", "name": "Wireless charging", "measures": "charge current on a reference magnetic charger", "lower": { "value": 60, "unit": "mA", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "proposed limit" } }, { "id": "test:audio-loopback", "station": "sta:s8", "name": "Audio loopback", "measures": "speaker to mics, level and THD", "upper": { "value": 3, "unit": "%", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "proposed limit" } }, { "id": "test:rf-check", "station": "sta:s8", "name": "Radio check", "measures": "Wi-Fi and BLE RSSI against a golden radio in the shield box", "lower": { "value": -60, "unit": "dBm", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "proposed limit" } }, { "id": "test:power-off", "station": "sta:s8", "name": "Hardware power-off current", "measures": "cell current with the switch off", "upper": { "value": 1, "unit": "uA", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "proposed limit" } }, { "id": "test:pogo-limit", "station": "sta:s8", "name": "Pogo pad current limit", "measures": "short-circuit current at the pads", "upper": { "value": 300, "unit": "mA", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "proposed limit" } }, { "id": "test:qr-read", "station": "sta:s8", "name": "QR reads back", "measures": "scanner read" } ], "pfmea": [ { "id": "fm:stake-weak", "operation": "op:diffuser-stake", "failure_mode": "Stake under-melted; diffuser loose", "effect": "Ring rattles; light leaks at the seam", "cause": "Stake time or temperature low", "severity": 5, "occurrence": 4, "detection": 4, "evidence": [ "src:tracker-puck-spec" ] }, { "id": "fm:screw-strip", "operation": "op:board-screw", "failure_mode": "Screw strips the boss", "effect": "Board loose; button feel mushy", "cause": "Torque high or pilot hole oversize", "severity": 6, "occurrence": 3, "detection": 3, "evidence": [ "src:tracker-puck-spec" ] }, { "id": "fm:adhesive-on-cone", "operation": "op:adhesive-dispense", "failure_mode": "Adhesive bead touches the speaker cone", "effect": "Buzz or low output", "cause": "Bead placement drift", "severity": 6, "occurrence": 3, "detection": 4, "evidence": [ "src:design-brief" ] }, { "id": "fm:battery-unseat", "operation": "op:battery-mate", "failure_mode": "Battery connector half-seated", "effect": "Dead unit or resets after a drop", "cause": "Mate force low; in the factory simulation a 2 N tug let half-seated plugs through, so the check is now 3 N", "severity": 8, "occurrence": 4, "detection": 3, "evidence": [ "src:ec-1-lessons", "src:factory-engine" ] }, { "id": "fm:wire-pinch", "operation": "op:base-close", "failure_mode": "Battery lead pinched when the base closes", "effect": "Short; heat in the worst case", "cause": "Lead outside its channel", "severity": 9, "occurrence": 2, "detection": 4, "evidence": [ "src:ec-1-lessons" ] }, { "id": "fm:ring-polarity", "operation": "op:ring-bond", "failure_mode": "Magnet ring bonded flipped, or a segment missing", "effect": "Won't hold on a magnetic mount or charger", "cause": "Ring loaded upside down", "severity": 6, "occurrence": 3, "detection": 2, "evidence": [ "src:design-brief" ] }, { "id": "fm:coil-offset", "operation": "op:coil-place", "failure_mode": "Coil off-centre in the ring", "effect": "Slow or no wireless charging", "cause": "Coil not keyed to the base", "severity": 5, "occurrence": 3, "detection": 3, "evidence": [ "src:design-brief" ] }, { "id": "fm:pad-recessed", "operation": "op:pad-press", "failure_mode": "Pogo pad recessed", "effect": "Dock or module doesn't connect", "cause": "Pad not pressed to its stop", "severity": 5, "occurrence": 3, "detection": 2, "evidence": [ "src:design-brief" ] }, { "id": "fm:gasket-shift", "operation": "op:gasket-place", "failure_mode": "Mic gasket off its port", "effect": "Low mic sensitivity; poor wake word", "cause": "Gasket lifts with the liner", "severity": 6, "occurrence": 4, "detection": 3, "evidence": [ "src:design-brief" ] }, { "id": "fm:id-twice", "operation": "op:flash-provision", "failure_mode": "Unit ID provisioned twice or not at all", "effect": "Twin and QR point at the wrong unit", "cause": "Retry after a failed flash", "severity": 6, "occurrence": 2, "detection": 2, "evidence": [ "src:design-brief" ] }, { "id": "fm:rf-detune", "operation": "op:functional-test", "failure_mode": "Radio check passes a detuned antenna", "effect": "Short range in the field", "cause": "Module antenna near the ring LEDs or the cell", "severity": 6, "occurrence": 3, "detection": 5, "evidence": [ "src:ec-1-lessons", "src:module-datasheet" ] }, { "id": "fm:qr-unreadable", "operation": "op:laser-mark", "failure_mode": "QR unreadable", "effect": "Unit can't open its twin", "cause": "Laser focus or power drift", "severity": 3, "occurrence": 3, "detection": 2, "evidence": [ "src:design-brief" ] } ], "ext": { "battery": { "cells": [ { "part": "part:battery", "chemistry": { "value": "Li-ion polymer", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design choice" }, "form": "pouch", "nominal_voltage_v": { "value": 3.7, "unit": "V", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design choice" }, "capacity_mah": { "value": 150, "unit": "mAh", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design target for a 28 x 16 x 3.5 mm cell; no coin cell, the ESP32-S3's Wi-Fi draws far more than one can supply" }, "protection_circuit": { "value": "single-cell protection board on the tab, the charger's limits and a hardware power-off switch. Charged by USB-C, a dock on the pads, or a magnetic wireless charger; a phone can't charge it", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design choice" } } ] } }, "design_intent": { "targets": [ { "characteristic": "size", "where": [ "part:top-shell" ], "target": { "value": 55.4, "unit": "mm", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design target" }, "upper": { "value": 55.4, "unit": "mm", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design target" }, "priority": "must", "owner": "industrial-design", "rationale": "Approved exterior direction (2026-11-01): the diameter of a common magnetic phone charger, so the puck sits flush on one. Replaces the 57 mm concept. The CAD, the magnet ring, the lugs and plus-one-base@1 in this file are still sized for 57 mm and need rework" }, { "characteristic": "thickness", "where": [ "part:top-shell", "part:base" ], "target": { "value": 12, "unit": "mm", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design target" }, "upper": { "value": 12, "unit": "mm", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design target" }, "priority": "must", "owner": "industrial-design", "rationale": "Approved exterior direction (2026-11-01): 12.0 mm at most, including the button dome and the base. Replaces 9.5 mm. A 12 mm puck still needs a thinner cell than the stock one; the CAD in this file is still 9.5 mm" }, { "characteristic": "weight", "where": [ "part:base" ], "target": { "value": 28, "unit": "g", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design target" }, "upper": { "value": 32, "unit": "g", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design target" }, "priority": "should", "owner": "product", "rationale": "Light enough to hang on a phone or a bag" }, { "characteristic": "button-travel", "where": [ "part:plus-button" ], "target": { "value": 0.3, "unit": "mm", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design target" }, "lower": { "value": 0.2, "unit": "mm", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design target" }, "upper": { "value": 0.4, "unit": "mm", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design target" }, "priority": "must", "owner": "product", "rationale": "Short, firm click you can find without looking" }, { "characteristic": "other", "where": [ "part:magnet-ring" ], "target": { "value": 8, "unit": "N", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design target" }, "lower": { "value": 6, "unit": "N", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design target" }, "priority": "must", "owner": "product", "rationale": "Magnetic hold on a phone mount. It stays put when a phone in a car mount hits a bump" }, { "characteristic": "other", "where": [ "part:base" ], "target": { "value": 30, "unit": "N", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design target" }, "lower": { "value": 30, "unit": "N", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design target" }, "priority": "must", "owner": "mechanical", "rationale": "Lug pull-out. The twist-lock lugs carry the load for clips, lanyards and bikes; the magnets only align" }, { "characteristic": "other", "where": [ "part:pogo-pad" ], "target": { "value": 300, "unit": "mA", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design target" }, "upper": { "value": 300, "unit": "mA", "source": "inferred", "confidence": "low", "evidence": [ "src:design-brief" ], "note": "design target" }, "priority": "must", "owner": "electrical", "rationale": "Pogo pad current limit. A shorted module trips safely" } ] }, "variants": { "objectives": [ { "metric": "throughput.cycle_time", "direction": "min" }, { "metric": "cost.cost_per_good_unit", "direction": "min" } ], "constraints": [ "takt 60 s (design target)", "headcount at most 9", "no new station type beyond the brief" ], "baseline": { "scores": { "throughput": { "cycle_time": { "value": 56, "unit": "s", "origin": "estimated", "engine": "expert-estimate", "confidence": "low", "note": "slowest station from target cycle times; nothing built" }, "takt": { "value": 60, "unit": "s", "origin": "estimated", "engine": "expert-estimate", "confidence": "medium", "note": "design target, about 480 units an 8-hour shift" }, "bottleneck_station": "sta:s8", "headcount": 8 } } }, "candidates": [ { "id": "var:bench-cell", "name": "Bench cell, for the first 100 builder units", "kind": "staffing", "base": "baseline", "description": "Decision 25's layout for the Q1 2027 bench builds. Three benches in a small U, no conveyor, at most three units in the cell. One technician carries each unit through: bench A does S1 to S4, bench B does S5 and S6, bench C does S7 and S8. 100 units in five build days. Layout: line/layouts/bench-cell.json.", "changes": [ { "action": "merge", "target": [ "sta:s1", "sta:s2", "sta:s3", "sta:s4" ], "description": "bench A" }, { "action": "merge", "target": [ "sta:s5", "sta:s6" ], "description": "bench B" }, { "action": "merge", "target": [ "sta:s7", "sta:s8" ], "description": "bench C" } ], "generated_by": { "method": "agent", "engine": "discrete-event", "run": "nplus1labs/factory 9bc6753 engine/examples/plus-one-demand", "created": "2026-11-02" }, "scores": { "throughput": { "takt": { "value": 1215, "unit": "s", "origin": "estimated", "engine": "analytic", "confidence": "medium", "note": "set by the assumed volume: one 8-hour shift less breaks, 21 working days a month" }, "uph": { "value": 16.9, "unit": "good units/h", "origin": "simulated", "engine": "discrete-event", "confidence": "low", "note": "capacity, simulated from assumed values; uncalibrated; no unit built; the technician is the constraint, not a bench; about 17% busy at this volume", "runs": 2000, "evidence": [ "src:factory-engine", "src:layout-study" ] }, "headcount": 1 } } }, { "id": "var:u-cell", "name": "U cell, for about 2,000 to 4,500 a month", "kind": "staffing", "base": "baseline", "description": "Decision 25's bridge between the bench builds and volume. The eight stations as benches in a U with a 2 s hand pass. Two operators: one runs S1 to S6, the other runs S7 and S8. Layout: line/layouts/u-cell.json.", "changes": [ { "action": "modify", "target": [ "sta:s1", "sta:s2", "sta:s3", "sta:s4", "sta:s5", "sta:s6" ], "description": "one operator walks S1 to S6" }, { "action": "modify", "target": [ "sta:s7", "sta:s8" ], "description": "a second operator runs S7 and S8" } ], "generated_by": { "method": "agent", "engine": "discrete-event", "run": "nplus1labs/factory 9bc6753 engine/examples/plus-one-demand", "created": "2026-11-02" }, "scores": { "throughput": { "takt": { "value": 255.15, "unit": "s", "origin": "estimated", "engine": "analytic", "confidence": "medium", "note": "set by the assumed volume: one 8-hour shift less breaks, 21 working days a month" }, "uph": { "value": 31.6, "unit": "good units/h", "origin": "simulated", "engine": "discrete-event", "confidence": "low", "note": "capacity, simulated from assumed values; uncalibrated; no unit built; the operator on S1 to S6 is the constraint", "runs": 2000, "evidence": [ "src:factory-engine", "src:layout-study" ] }, "headcount": 2 } } }, { "id": "var:madecell-balanced", "name": "Balanced MadeCell line, for about 10,000 a month", "kind": "mixed", "base": "baseline", "description": "Decision 24's MadeCell base (a 40 x 8 ft frame, four bays, stations facing out from a central conveyor, operators on the floor outside), balanced for decision 25's volume case. 16 pallets and an overhead restocking rail. S1 and S2 share a workstation, as do S3 and S4; S5 and S6 and S7 each run twice; S8 becomes a cell of three test fixtures. Seven people. Layout: line/layouts/madecell-balanced.json.", "changes": [ { "action": "merge", "target": [ "sta:s1", "sta:s2" ], "description": "workstation W1" }, { "action": "merge", "target": [ "sta:s3", "sta:s4" ], "description": "workstation W2" }, { "action": "split", "target": [ "sta:s5", "sta:s6" ], "description": "W3, built twice" }, { "action": "split", "target": [ "sta:s7" ], "description": "W4, built twice" }, { "action": "split", "target": [ "sta:s8" ], "description": "a test cell of three fixtures" } ], "generated_by": { "method": "agent", "engine": "discrete-event", "run": "nplus1labs/factory 9bc6753 engine/examples/plus-one-demand", "created": "2026-11-02" }, "scores": { "throughput": { "takt": { "value": 51.03, "unit": "s", "origin": "estimated", "engine": "analytic", "confidence": "medium", "note": "set by the assumed volume: one 8-hour shift less breaks, 21 working days a month" }, "uph": { "value": 88.8, "unit": "good units/h", "origin": "simulated", "engine": "discrete-event", "confidence": "low", "note": "capacity, simulated from assumed values; uncalibrated; no unit built; W1 (S1 and S2) is the bottleneck, about 79% busy", "runs": 2000, "evidence": [ "src:factory-engine", "src:layout-study" ] }, "headcount": 7, "bottleneck_station": "sta:s1" } } }, { "id": "var:split-s8", "name": "Split S8: test in one station, mark and pack in another", "kind": "station-layout", "base": "baseline", "description": "A ninth bench takes the laser mark and pack off S8. S7 and S8 then both sit at 40 s.", "changes": [ { "action": "add", "target": [ "sta:s8" ], "description": "mark and pack move to a new bench after S8" } ], "generated_by": { "method": "agent", "engine": "expert-estimate", "created": "2026-11-01" }, "scores": { "throughput": { "cycle_time": { "value": 40, "unit": "s", "origin": "estimated", "engine": "expert-estimate", "confidence": "low" }, "bottleneck_station": "sta:s7", "headcount": 9 } } }, { "id": "var:plus-one-plus", "name": "Plus One+ (coming next)", "kind": "design-change", "base": "baseline", "description": "Coming next. The same board with more parts fitted: light sensor, NFC tag, debug jumper; a clear shell option. No new station: a board-variant BOM at S2 and extra checks at S8, which push S8 past takt unless it is split.", "changes": [ { "action": "add", "target": [ "part:light-sensor", "part:nfc-tag", "part:debug-jumper" ], "description": "fit the empty footprints" }, { "action": "modify", "target": [ "sta:s8" ], "description": "add NFC and light-sensor checks" } ], "generated_by": { "method": "manual", "engine": "expert-estimate", "created": "2026-11-01" }, "scores": { "throughput": { "cycle_time": { "value": 62, "unit": "s", "origin": "estimated", "engine": "expert-estimate", "confidence": "low", "note": "S8 gains about 6 s of checks" }, "bottleneck_station": "sta:s8", "headcount": 8 } } }, { "id": "var:plus-one-plus-plus", "name": "Plus One++ (coming next)", "kind": "routing", "base": "var:plus-one-plus", "description": "Coming next. Plus One+ boxed with a set of backs. Adds S9 after S8, kitting the backs into the box.", "changes": [ { "action": "add", "target": [ "sta:s8" ], "description": "a new S9 after S8 kits the backs into a bigger box" } ], "generated_by": { "method": "manual", "engine": "expert-estimate", "created": "2026-11-01" }, "scores": { "throughput": { "cycle_time": { "value": 62, "unit": "s", "origin": "estimated", "engine": "expert-estimate", "confidence": "low", "note": "S9 kitting runs in parallel; S8 stays the bottleneck" }, "bottleneck_station": "sta:s8", "headcount": 9 } } } ], "recommended": { "variant": "var:bench-cell", "rationale": "Decision 25: the layout follows volume. The first 100 builder units run on a one-technician bench cell; the U cell bridges to about 4,500 a month and the balanced MadeCell line takes about 10,000. On any fixed eight-station line, split S8 first: it sits at 56 s against a 60 s takt and the Plus One+ checks would push it to 62 s", "tradeoffs": "a bench cell is cheap to set up but tops out at about 2,400 a month on one shift" }, "engine_notes": "The layout variants come from the N+1 factory engine (nplus1labs/factory 9bc6753), a discrete-event simulation that runs this OPD's routing with a ±30% spread on every target time. They are simulated from assumed values; uncalibrated; no unit built. The audio loopback, the RF check and wireless charging are outside the simulation. The other scores are expert estimates." } } }