Open ProductHub

benikigai/plus-onePublic

Plus One

Prototype in design. Every value is a design target.

Factory · Assembly

Assembly

How does it go together, and in what order?

22
operations
5
sub-assemblies
209 s
total work content computed
asm:top-sub: Seat the light-ring diffuser in the top shell → Heat-stake the diffuserasm:top-sub: Heat-stake the diffuser → Fit the plus buttonasm:top-sub: Fit the plus button → Place the two mic gaskets over the portsasm:top-sub: Place the two mic gaskets over the ports → Place the main board in the top shellasm:core: Place the main board in the top shell → Drive three board screwsasm:core: Drive three board screws → Dispense adhesive for the speaker and hapticasm:core: Dispense adhesive for the speaker and haptic → Place the speakerasm:core: Place the speaker → Place the haptic motorasm:core: Place the haptic motor → Mate the battery connectorasm:core: Mate the battery connector → Place the battery on foam tapeasm:base: Bond the magnet ring into the base → Place the charging coil and ferrite inside the ringasm:base: Place the charging coil and ferrite inside the ring → Press the five pogo pads into the baseasm:core: Place the battery on foam tape → Close the base onto the coreasm:base: Press the five pogo pads into the base → Close the base onto the coreasm:plus-one: Close the base onto the core → Check ring polarity, pad height and the keyasm:plus-one: Check ring polarity, pad height and the key → Flash firmware and provision the unit IDasm:plus-one: Flash firmware and provision the unit ID → Calibrate the two micsasm:plus-one: Calibrate the two mics → Calibrate the motion sensorasm:plus-one: Calibrate the motion sensor → Functional test: button, touch, ring, haptic, IMU, wired and wireless charge, audio loopback, RF checkasm:plus-one: Functional test: button, touch, ring, haptic, IMU, wired and wireless charge, audio loopback, RF check → Laser-mark the unit QR on the base rimasm:plus-one: Laser-mark the unit QR on the base rim → Pack with the cable and card; no back shipspart:top-shell · Top shellTop shellpart:ring-diffuser · Light-ring diffuserLight-ring diffuserop:diffuser-place · Seat the light-ring diffuser in the top shell · place at sta:s1Seat the light-ringdiffuser in the top sh…s1 · placeop:diffuser-stake · Heat-stake the diffuser · heat-stake at sta:s1Heat-stake the diffusers1 · heat-stakepart:plus-button · Plus buttonPlus buttonop:button-place · Fit the plus button · place at sta:s1Fit the plus buttons1 · placepart:mic-gasket · Mic gasketMic gasketop:gasket-place · Place the two mic gaskets over the ports · place at sta:s1Place the two micgaskets over the portss1 · placepart:main-pcba · Main board (PCBA)Main board (PCBA)op:board-place · Place the main board in the top shell · place at sta:s2Place the main board inthe top shells2 · placepart:board-screw · Board screw, 2 mm thread-forming for plasticsBoard screw, 2 mm thr…op:board-screw · Drive three board screws · screw at sta:s3Drive three boardscrewss3 · screwop:adhesive-dispense · Dispense adhesive for the speaker and haptic · adhesive at sta:s4Dispense adhesive forthe speaker and haptics4 · adhesivepart:speaker · Speaker, 12 mm thinSpeaker, 12 mm thinop:speaker-place · Place the speaker · place at sta:s4Place the speakers4 · placepart:haptic-motor · Haptic motor, 7 mm coinHaptic motor, 7 mm co…op:haptic-place · Place the haptic motor · place at sta:s4Place the haptic motors4 · placepart:battery · Li-ion cell with protectionLi-ion cell with prot…op:battery-mate · Mate the battery connector · connector-mate at sta:s5Mate the batteryconnectors5 · connector-matepart:battery-foam · Battery foam tapeBattery foam tapeop:battery-place · Place the battery on foam tape · place at sta:s5Place the battery onfoam tapes5 · placepart:base · Base: the interfaceBase: the interfacepart:magnet-ring · Magnet ringMagnet ringop:ring-bond · Bond the magnet ring into the base · adhesive at sta:s6Bond the magnet ringinto the bases6 · adhesivepart:qi-coil · Wireless charging coil and ferriteWireless charging coi…op:coil-place · Place the charging coil and ferrite inside the ring · place at sta:s6Place the charging coiland ferrite inside the…s6 · placepart:pogo-pad · Pogo padPogo padop:pad-press · Press the five pogo pads into the base · place at sta:s6Press the five pogopads into the bases6 · placeop:base-close · Close the base onto the core · snap-fit at sta:s6Close the base onto thecores6 · snap-fitop:polarity-check · Check ring polarity, pad height and the key · inspect at sta:s6Check ring polarity,pad height and the keys6 · inspectop:flash-provision · Flash firmware and provision the unit ID · flash at sta:s7Flash firmware andprovision the unit IDs7 · flashop:mic-cal · Calibrate the two mics · test at sta:s7Calibrate the two micss7 · testop:imu-cal · Calibrate the motion sensor · test at sta:s7Calibrate the motionsensors7 · testop:functional-test · Functional test: button, touch, ring, haptic, IMU, wired and wireless charge, audio loopback, RF check · test at sta:s8Functional test:button, touch, ring, h…s8 · testop:laser-mark · Laser-mark the unit QR on the base rim · label at sta:s8Laser-mark the unit QRon the base rims8 · labelpart:retail-box · Retail boxRetail boxpart:pulp-tray · Pulp trayPulp traypart:usb-cable · USB-C cable, 0.5 mUSB-C cable, 0.5 mpart:quick-card · Quick start card with the unit QRQuick start card with…op:pack · Pack with the cable and card; no back ships · pack at sta:s8Pack with the cable andcard; no back shipss8 · packasm:packed · Packed unit with cable and card; no back shipsPacked unit with cabl…asm:packed
0 s20 s40 s60 s80 s100 s120 s140 s160 s180 s200 sSeconds into the unitSeat the light-ring diffuser in the top shell · S1 · 5 s, from 0 sS1Seat the light-ring diffuser in t…5 sHeat-stake the diffuser · S1 · 9 s, from 5 sS1Heat-stake the diffuser9 sFit the plus button · S1 · 4 s, from 14 sS1Fit the plus button4 sPlace the two mic gaskets over the ports · S1 · 6 s, from 18 sS1Place the two mic gaskets over th…6 sPlace the main board in the top shell · S2 · 10 s, from 24 sS2Place the main board in the top s…10 sDrive three board screws · S3 · 15 s, from 34 sS3Drive three board screws15 sDispense adhesive for the speaker and haptic · S4 · 8 s, from 49 sS4Dispense adhesive for the speaker…8 sPlace the speaker · S4 · 5 s, from 57 sS4Place the speaker5 sPlace the haptic motor · S4 · 5 s, from 62 sS4Place the haptic motor5 sMate the battery connector · S5 · 8 s, from 67 sS5Mate the battery connector8 sPlace the battery on foam tape · S5 · 6 s, from 75 sS5Place the battery on foam tape6 sBond the magnet ring into the base · S6 · 8 s, from 81 sS6Bond the magnet ring into the base8 sPlace the charging coil and ferrite inside the ring · S6 · 6 s, from 89 sS6Place the charging coil and ferri…6 sPress the five pogo pads into the base · S6 · 6 s, from 95 sS6Press the five pogo pads into the…6 sClose the base onto the core · S6 · 8 s, from 101 sS6Close the base onto the core8 sCheck ring polarity, pad height and the key · S6 · 4 s, from 109 sS6Check ring polarity, pad height a…4 sFlash firmware and provision the unit ID · S7 · 24 s, from 113 sS7Flash firmware and provision the …24 sCalibrate the two mics · S7 · 10 s, from 137 sS7Calibrate the two mics10 sCalibrate the motion sensor · S7 · 6 s, from 147 sS7Calibrate the motion sensor6 sFunctional test: button, touch, ring, haptic, IMU, wired and wireless charge, audio loopback, RF check · S8 · 40 s, from 153 sS8Functional test: button, touch, r…40 sLaser-mark the unit QR on the base rim · S8 · 6 s, from 193 sS8Laser-mark the unit QR on the bas…6 sPack with the cable and card; no back ships · S8 · 10 s, from 199 sS8Pack with the cable and card; no …10 s
One unit, start to finish, if one person did every step: 209 s of work. Colour and code show the station. Each step is a target, so the timeline is too.
All 22 operations, with method, fixture and cycle time
OperationStationInputs → outputCycle timeMethodFixture
Seat the light-ring diffuser in the top shell
op:diffuser-place place		Top shell sub-assemblypart:top-shell, part:ring-diffuser → asm:top-sub5 s
InferredEngineering judgement, not measured. Low confidence.Evidence: src:design-brief, src:tracker-puck-spectarget from time-study estimates of similar operations
by hand onto six stake posts
InferredEngineering judgement, not measured. Low confidence.Evidence: src:design-briefproposed
ring nest
InferredEngineering judgement, not measured. Low confidence.Evidence: src:design-briefproposed
Heat-stake the diffuser
op:diffuser-stake heat-stake		Top shell sub-assemblyasm:top-sub → asm:top-sub9 s
InferredEngineering judgement, not measured. Low confidence.Evidence: src:design-brief, src:tracker-puck-spectarget from time-study estimates of similar operations
six-post hot-air cold-stake, timed
InferredEngineering judgement, not measured. Low confidence.Evidence: src:design-briefproposed
heat staker
InferredEngineering judgement, not measured. Low confidence.Evidence: src:design-briefproposed
Fit the plus button
op:button-place place		Top shell sub-assemblyasm:top-sub, part:plus-button → asm:top-sub4 s
InferredEngineering judgement, not measured. Low confidence.Evidence: src:design-brief, src:tracker-puck-spectarget from time-study estimates of similar operations
by hand, flange under the skin
InferredEngineering judgement, not measured. Low confidence.Evidence: src:design-briefproposed
ring nest
InferredEngineering judgement, not measured. Low confidence.Evidence: src:design-briefproposed
Place the two mic gaskets over the ports
op:gasket-place place		Top shell sub-assemblyasm:top-sub, part:mic-gasket → asm:top-sub6 s
InferredEngineering judgement, not measured. Low confidence.Evidence: src:design-brief, src:tracker-puck-spectarget from time-study estimates of similar operations
jig-located, liner peeled
InferredEngineering judgement, not measured. Low confidence.Evidence: src:design-briefproposed
gasket jig
InferredEngineering judgement, not measured. Low confidence.Evidence: src:design-briefproposed
Place the main board in the top shell
op:board-place place		Place main boardasm:top-sub, part:main-pcba → asm:core10 s
InferredEngineering judgement, not measured. Low confidence.Evidence: src:design-brief, src:tracker-puck-spectarget from time-study estimates of similar operations
by hand onto three bosses, LEDs to the ring
InferredEngineering judgement, not measured. Low confidence.Evidence: src:design-briefproposed
top-shell nest
InferredEngineering judgement, not measured. Low confidence.Evidence: src:design-briefproposed
Drive three board screws
op:board-screw screw		Drive board screwsasm:core, part:board-screw → asm:core15 s
InferredEngineering judgement, not measured. Low confidence.Evidence: src:design-brief, src:tracker-puck-spectarget from time-study estimates of similar operations
thread-forming, torque to angle window
InferredEngineering judgement, not measured. Low confidence.Evidence: src:design-briefproposed
top-shell nest
InferredEngineering judgement, not measured. Low confidence.Evidence: src:design-briefproposed
Dispense adhesive for the speaker and haptic
op:adhesive-dispense adhesive		Speaker and hapticasm:core → asm:core8 s
InferredEngineering judgement, not measured. Low confidence.Evidence: src:design-brief, src:tracker-puck-spectarget from time-study estimates of similar operations
two beads, camera-checked
InferredEngineering judgement, not measured. Low confidence.Evidence: src:design-briefproposed
dispense nest
InferredEngineering judgement, not measured. Low confidence.Evidence: src:design-briefproposed
Place the speaker
op:speaker-place place		Speaker and hapticasm:core, part:speaker → asm:core5 s
InferredEngineering judgement, not measured. Low confidence.Evidence: src:design-brief, src:tracker-puck-spectarget from time-study estimates of similar operations
jig-located, 5 s hold
InferredEngineering judgement, not measured. Low confidence.Evidence: src:design-briefproposed
placement jig
InferredEngineering judgement, not measured. Low confidence.Evidence: src:design-briefproposed
Place the haptic motor
op:haptic-place place		Speaker and hapticasm:core, part:haptic-motor → asm:core5 s
InferredEngineering judgement, not measured. Low confidence.Evidence: src:design-brief, src:tracker-puck-spectarget from time-study estimates of similar operations
jig-located
InferredEngineering judgement, not measured. Low confidence.Evidence: src:design-briefproposed
placement jig
InferredEngineering judgement, not measured. Low confidence.Evidence: src:design-briefproposed
Mate the battery connector
op:battery-mate connector-mate		Batteryasm:core, part:battery → asm:core8 s
InferredEngineering judgement, not measured. Low confidence.Evidence: src:design-brief, src:tracker-puck-spectarget from time-study estimates of similar operations
seat, then a 3 N tug check
InferredEngineering judgement, not measured. Low confidence.Evidence: src:design-briefproposed
connector seating tool
InferredEngineering judgement, not measured. Low confidence.Evidence: src:design-briefproposed
Place the battery on foam tape
op:battery-place place		Batteryasm:core, part:battery-foam → asm:core6 s
InferredEngineering judgement, not measured. Low confidence.Evidence: src:design-brief, src:tracker-puck-spectarget from time-study estimates of similar operations
locator, lead routed in its channel
InferredEngineering judgement, not measured. Low confidence.Evidence: src:design-briefproposed
battery locator
InferredEngineering judgement, not measured. Low confidence.Evidence: src:design-briefproposed
Bond the magnet ring into the base
op:ring-bond adhesive		Close the basepart:base, part:magnet-ring → asm:base8 s
InferredEngineering judgement, not measured. Low confidence.Evidence: src:design-brief, src:tracker-puck-spectarget from time-study estimates of similar operations
keyed fixture, polarity checked before the press
InferredEngineering judgement, not measured. Low confidence.Evidence: src:design-briefproposed
ring bonding fixture
InferredEngineering judgement, not measured. Low confidence.Evidence: src:design-briefproposed
Place the charging coil and ferrite inside the ring
op:coil-place place		Close the baseasm:base, part:qi-coil → asm:base6 s
InferredEngineering judgement, not measured. Low confidence.Evidence: src:design-brief, src:tracker-puck-spectarget from time-study estimates of similar operations
keyed to the base, adhesive-backed
InferredEngineering judgement, not measured. Low confidence.Evidence: src:design-briefproposed
ring bonding fixture
InferredEngineering judgement, not measured. Low confidence.Evidence: src:design-briefproposed
Press the five pogo pads into the base
op:pad-press place		Close the baseasm:base, part:pogo-pad → asm:base6 s
InferredEngineering judgement, not measured. Low confidence.Evidence: src:design-brief, src:tracker-puck-spectarget from time-study estimates of similar operations
press to a hard stop
InferredEngineering judgement, not measured. Low confidence.Evidence: src:design-briefproposed
pad press
InferredEngineering judgement, not measured. Low confidence.Evidence: src:design-briefproposed
Close the base onto the core
op:base-close snap-fit		Close the baseasm:core, asm:base → asm:plus-one8 s
InferredEngineering judgement, not measured. Low confidence.Evidence: src:design-brief, src:tracker-puck-spectarget from time-study estimates of similar operations
three snaps, force-monitored press
InferredEngineering judgement, not measured. Low confidence.Evidence: src:design-briefproposed
closing press
InferredEngineering judgement, not measured. Low confidence.Evidence: src:design-briefproposed
Check ring polarity, pad height and the key
op:polarity-check inspect		Close the baseasm:plus-one → asm:plus-one4 s
InferredEngineering judgement, not measured. Low confidence.Evidence: src:design-brief, src:tracker-puck-spectarget from time-study estimates of similar operations
polarity gauge and height gauge
InferredEngineering judgement, not measured. Low confidence.Evidence: src:design-briefproposed
pad press
InferredEngineering judgement, not measured. Low confidence.Evidence: src:design-briefproposed
Flash firmware and provision the unit ID
op:flash-provision flash		Flash, provision, calibrateasm:plus-one → asm:plus-one24 s
InferredEngineering judgement, not measured. Low confidence.Evidence: src:design-brief, src:tracker-puck-spectarget from time-study estimates of similar operations
over USB-C; unit ID written to eFuse
InferredEngineering judgement, not measured. Low confidence.Evidence: src:design-briefproposed
USB-C pogo fixture
InferredEngineering judgement, not measured. Low confidence.Evidence: src:design-briefproposed
Calibrate the two mics
op:mic-cal test		Flash, provision, calibrateasm:plus-one → asm:plus-one10 s
InferredEngineering judgement, not measured. Low confidence.Evidence: src:design-brief, src:tracker-puck-spectarget from time-study estimates of similar operations
reference tone in an acoustic box
InferredEngineering judgement, not measured. Low confidence.Evidence: src:design-briefproposed
acoustic box
InferredEngineering judgement, not measured. Low confidence.Evidence: src:design-briefproposed
Calibrate the motion sensor
op:imu-cal test		Flash, provision, calibrateasm:plus-one → asm:plus-one6 s
InferredEngineering judgement, not measured. Low confidence.Evidence: src:design-brief, src:tracker-puck-spectarget from time-study estimates of similar operations
six-face tilt
InferredEngineering judgement, not measured. Low confidence.Evidence: src:design-briefproposed
tilt table
InferredEngineering judgement, not measured. Low confidence.Evidence: src:design-briefproposed
Functional test: button, touch, ring, haptic, IMU, wired and wireless charge, audio loopback, RF check
op:functional-test test		Functional test, mark, packasm:plus-one → asm:plus-one40 s
InferredEngineering judgement, not measured. Low confidence.Evidence: src:design-brief, src:tracker-puck-spectarget from time-study estimates of similar operations
scripted test over USB; RF in a shield box; a reference wireless charger
InferredEngineering judgement, not measured. Low confidence.Evidence: src:design-briefproposed
functional tester
InferredEngineering judgement, not measured. Low confidence.Evidence: src:design-briefproposed
Laser-mark the unit QR on the base rim
op:laser-mark label		Functional test, mark, packasm:plus-one → asm:plus-one6 s
InferredEngineering judgement, not measured. Low confidence.Evidence: src:design-brief, src:tracker-puck-spectarget from time-study estimates of similar operations
fibre laser, then a read-back
InferredEngineering judgement, not measured. Low confidence.Evidence: src:design-briefproposed
laser marker
InferredEngineering judgement, not measured. Low confidence.Evidence: src:design-briefproposed
Pack with the cable and card; no back ships
op:pack pack		Functional test, mark, packasm:plus-one, part:retail-box, part:pulp-tray, part:usb-cable, part:quick-card → asm:packed10 s
InferredEngineering judgement, not measured. Low confidence.Evidence: src:design-brief, src:tracker-puck-spectarget from time-study estimates of similar operations
by hand
InferredEngineering judgement, not measured. Low confidence.Evidence: src:design-briefproposed
pack bench
InferredEngineering judgement, not measured. Low confidence.Evidence: src:design-briefproposed