Hardware

Work in progress
This list is incomplete and several quantities are unconfirmed. Open any item to see where its count comes from and where it goes on the machine.
Layers
Shared with the 3D parts tab — drives every per-layer count.
3
Icon shows head shape; colour is thread size: M3M4M5M6
Rough US total $0.00 0/64 selected ·

Screws

M3 screw — type and length TBD

×17

Placeholder for the M3s whose head type and length nobody has written down yet: the cable-mount cage bracket, the camera extension, and the two board mounts.

Thread M3Head UnknownLength Unknown

Neither the head type nor the length is recorded — measure before ordering.

No source picked yet.
M3 × 6 mm countersunk 6mm

M3 countersunkM3 × 6 mm countersunk

×1

Secures the limit switch hammer into the top interface chute mount from below, into the hammer's M3 insert.

Thread M3Length 6 mmHead Countersunk (flat) socket

The ×1 is the top-interface count (limit-switch hammer). Screws used elsewhere on the machine aren't tallied here yet.

No source picked yet.
M3 × 10 mm socket/button head 10mm

M3 socketM3 × 10 mm socket/button head

×3

Fastens the outer cable clamp into the top interface chute mount, and the ribbon cable clamp to the cable cage bracket.

Thread M3Length 10 mmHead Socket head cap

The ×3 is the top-interface count (2 cable clamp, 1 ribbon clamp). Screws used elsewhere on the machine aren't tallied here yet.

No source picked yet.
M3 × 8 mm countersunk 8mm

M3 countersunkM3 × 8 mm countersunk

×80

The workhorse M3 screw — used all over the machine wherever a flush head is wanted.

Thread M3Length 8 mmHead Countersunk (flat) socketMaterial Stainless steelFinish Silver
Amazon (US) no price
M3 × 12 mm countersunk 12mm

M3 countersunkM3 × 12 mm countersunk

×63

The long M3 countersunk. Used all over the machine.

Thread M3Length 12 mmHead Countersunk (flat) socketMaterial Stainless steelFinish Silver
Amazon (US) no price
M3 × 20 mm countersunk 20mm

M3 countersunkM3 × 20 mm countersunk

×4

Joins the C-channel light post to the NEMA bracket. Threads straight into the printed post — no insert, no nut.

Thread M3Length 20 mmHead Countersunk (flat) socketMaterial Stainless steel
Amazon (US) no price
M3 × 16 mm socket/button head 16mm

M3 socketM3 × 16 mm socket/button head

×12

Bolts the NEMA 17 stepper to the NEMA bracket. 3 per C-channel.

Thread M3Length 16 mmHead Socket or button head, interchangeable (both flat-bottomed, so either just clamps; socket is the default)
No source picked yet.
M3 × 6 mm socket/button head 6mm

M3 buttonM3 × 6 mm socket/button head

×12

Holds the layer adapter board down on the chute core's heat inserts.

Thread M3Length 6 mmHead Socket or button head, interchangeable (both flat-bottomed, so either just clamps; button is the default)
No source picked yet.
M3 × 12 mm socket/button head 12mm

M3 buttonM3 × 12 mm socket/button head

×4

Mounts the cable clamp to the interface, and the limit switch to its housing.

Thread M3Length 12 mmHead Socket or button head, interchangeable (both flat-bottomed, so either just clamps; button is the default)
No source picked yet.
M3 × 35 mm socket/button head 35mm

M3 buttonM3 × 35 mm socket/button head

×1

The single long screw that clamps the two cable-clamp halves together.

Thread M3Length 35 mmHead Socket or button head, interchangeable (both flat-bottomed, so either just clamps; button is the default)
No source picked yet.
M4 × 6 mm countersunk 6mm

M4 countersunkM4 × 6 mm countersunk

×4

Fastens the printed PSU housing to the power supply's own case threads.

Thread M4Length 6 mmHead Countersunk (flat) socket
No source picked yet.
M4 × 12 mm countersunk 12mm

M4 countersunkM4 × 12 mm countersunk

×16

Bolts each lazy Susan together — 4 a side, through the M4 inserts in the static half and the chute mount. 2 lazy Susans per machine.

Thread M4Length 12 mmHead Countersunk (flat) socket
No source picked yet.
M5 × 12 mm socket/button head 12mm

M5 socketM5 × 12 mm socket/button head

×24

Holds the NEMA 23 stepper onto the interface bracket.

Thread M5Length 12 mmHead Socket or button head, interchangeable (both flat-bottomed, so either just clamps; socket is the default)
No source picked yet.
M5 × 16 mm socket/button head 16mm

M5 socketM5 × 16 mm socket/button head

×87

The most-used M5 in the machine: every external bracket, every bin bracket, every interface rib, every lazy Susan extrusion mount.

Thread M5Length 16 mmHead Socket or button head, interchangeable (both flat-bottomed, so either just clamps; socket is the default)

Designed to self-tap into printed plastic wherever it lands in an external bracket or the upper fixed section — no nut and no insert there.

No source picked yet.
M5 × 20 mm socket/button head 20mm

M5 socketM5 × 20 mm socket/button head

×26

Mounts the chute limit switch assembly to the interface frame, into T-nuts.

Thread M5Length 20 mmHead Socket or button head, interchangeable (both flat-bottomed, so either just clamps; socket is the default)
No source picked yet.
M5 × 30 mm socket/button head 30mm

M5 socketM5 × 30 mm socket/button head

×6

Attaches the cable cage to the six interface brackets.

Thread M5Length 30 mmHead Socket or button head, interchangeable (both flat-bottomed, so either just clamps; socket is the default)
No source picked yet.
M5 × 35 mm flat head 35mm

M5 flatM5 × 35 mm flat head

×12

The long screws that stack the cable cage together, and that bolt the plywood top plate down onto the interface brackets.

Thread M5Length 35 mmHead Flat (pancake) head, hex socketMaterial 304 stainless steel 18-8Threading Fully machine threadFinish Bright
Amazon (US) $5.99 / 20
M5 × 8 mm countersunk 8mm

M5 countersunkM5 × 8 mm countersunk

×6

Loosely fixes the limit-switch interface bracket's extrusion into the interface rib while aligning it, into a T-nut.

Thread M5Length 8 mmHead Countersunk (flat) socket

A snug fit here, it barely reaches the T-nut. Opening the countersink a little and tightening firmly gets the head to sit flush. The ×6 is the top-interface count (1 per interface bracket); screws used elsewhere on the machine aren't tallied here yet.

No source picked yet.
M5 × 22 mm countersunk 22mm

M5 countersunkM5 × 22 mm countersunk

×14

Bolts the interface bracket assembly and all six interface brackets down through the laser-cut top plate (holes S2/S3, then I1–I6 and O1–O6).

Thread M5Length 22 mmHead Countersunk (flat) socket

The top plate's laser-cut holes aren't countersunk, so where a flush head won't seat an M5 × 20 button head is used instead. The ×14 is the top-interface count (2 to the top plate, 12 through the bracket holes); screws used elsewhere on the machine aren't tallied here yet.

No source picked yet.
M5 socket/button head, length TBD

M5 socketM5 socket/button head, length TBD

×8

Placeholder for the three electronics mounts that bolt to the frame. The length has not been measured yet.

Thread M5Length UnknownHead Socket or button head, interchangeable (both flat-bottomed, so either just clamps; socket is the default)

Length unknown — measure one on the machine before ordering. Six are used: PSU box, control board mount, Orange Pi mount.

No source picked yet.

Washers

M3 × 15 mm washer

M3 × 15 mm washer

×1

Flat/fender washer, 15 mm outer diameter. Sits under the M3 × 35 button screw that holds the interface idler gear onto the NEMA 23 bracket.

Thread M3Outer diameter 15 mmType Flat / fender washerMaterial Stainless steelFinish Silver

The ×1 is the top-interface count (under the idler-gear screw). Washers used elsewhere on the machine aren't tallied here yet.

No source picked yet.

Nuts

M3 nut

M3 nutM3 nut

×7

Plain M3 hex nut. Backs the camera-arm screws and the cable clamp's long screw.

Thread M3Type HexMaterial Stainless steelFinish Silver
No source picked yet.
M5 nut

M5 nutM5 nut

×6

Plain M5 hex nut. Holds the cable cage's six long screws on.

Thread M5Type HexMaterial Stainless steelFinish Silver
No source picked yet.
M5 roll-in T-nut, 2020

M5 t nutM5 roll-in T-nut, 2020

×59

Every button-head M5 screw that goes into extrusion lands in one of these.

Thread M5Fits 2020 extrusion, 6 mm slotType Spring-loaded, roll-inMaterial Carbon steel
Amazon (US) $9.99 / 100 Zyltech (US) $12.95 / 100

Stock material

Steel rod, 3/8 in — 4 ft stock

Steel rod, 3/8 in — 4 ft stock

×1
4 ft (1.22 m) length

Bought as a length and cut down. One 4 ft rod yields all four ~1 ft pieces the two overhead camera arms hang from.

Diameter 3/8 in (9.53 mm) · 10 mm in metricBuy One 4 ft (1.22 m) length, or longerCut into 4 × ~1 ft (305 mm)Material Cold-rolled plain low-carbon steel

Heat inserts

Ruthex M3 heat insert (long)

M3 heat insertRuthex M3 heat insert (long)

×122

ruthex RX-M3x5.7 brass heat-set threaded insert. The default M3 insert anywhere one is called for.

Type Heat-set threaded insertThread M3Variant Long (5.7 mm)Material BrassModel ruthex RX-M3x5.7
Amazon (ruthex) (US) $9.99 / 100 $19.98AliExpress (CN) $27.99 / 300
Ruthex M5 heat insert (long)

M5 heat insertRuthex M5 heat insert (long)

×23

The default M5 insert anywhere one is called for.

Type Heat-set threaded insertThread M5Variant Long (9.5 mm)Material BrassModel ruthex RX-M5x9.5
Amazon (US) $9.99 / 50
Ruthex M4 heat insert

M4 heat insertRuthex M4 heat insert

×16

Lazy Susan mount only.

Type Heat-set threaded insertThread M4Length 8.1 mmMaterial BrassModel ruthex RX-M4x8.1
Amazon (US) $9.99 / 50

Standoffs

Standoff - M3 - 10mm

Standoff - M3 - 10mm

×8

Stands the control board and the Orange Pi off their brackets.

Length is the BOM sheet's 10 mm and has not been confirmed against the board mounts.

Amazon (US) $8.29 / 30

Cameras

IMX415 4K camera module

IMX415 4K camera module

×1

Classification top camera

OV9732 720p Camera Module

OV9732 720p Camera Module

×2

C-Channel and carousel drop plate detection cameras

Amazon (US) $29.99 / 3 AliExpress (EU) €32.00

Pulleys

Timing pulley (20T, 8 mm shaft, 10 mm belt)

Timing pulley (20T, 8 mm shaft, 10 mm belt)

×1

Interface between stepper shaft and chute gear

Amazon (US) $9.99 / 5

Wheels

2020 M6 foot connector

2020 M6 foot connector

×6

It needs to move...

Fits 2020 extrusion, 6 mm slotThread M6 × 1.0Material Aluminum alloy, powder coatedIncludes Bolts and nuts
Amazon (US) $12.99 / 4 $25.98
Swivel stem caster, M6 × 15 mm

Swivel stem caster, M6 × 15 mm

×6

Screws into the 2020 foot connector so the machine can roll.

Thread M6 × 1.0, 15 mm stemWheel 2 in (50 mm) TPR, swivel with brakeLoad 300 lb per caster (2 in)Brand YEWEKE
Amazon (US) $16.99 / 4 $33.98

Motors

NEMA 17 stepper motor

NEMA 17 stepper motor

×4

C-Channel and carousel drive motors

Amazon (US) $10.99 / 3 $21.98StepperOnline (EU) no price
NEMA 23 stepper motor

NEMA 23 stepper motor

×1

Chute drive motor

MG995 servo

MG995 servo

×3

Standard Servo for flap (serial upgrade see note)

Amazon (US) $17.98 / 4

Bearings

6806-2RS bearing

6806-2RS bearing

×4

Bearings for c-channel rotors

Size 30 × 42 × 7 mm (ID × OD × W)Seal Double rubber (2RS)Material Chrome steel
Amazon (US) $16.19 / 10
608 2RS bearing

608 2RS bearing

×5

Bearings for c-channel idler, chute idler, carousel arms

Amazon (US) $6.99 / 20
6704-2RS bearing

6704-2RS bearing

×6

Bearings for chute flap

Size 20 × 27 × 4 mm (ID × OD × W)Seal Double rubber (2RS)Material Chrome steel
Amazon (US) $15.89 / 10 Amazon (US) $13.69 / 10 AliExpress (CN) no price
Lazy Susan

Lazy Susan

×2

Main chute bearing

Size 8" / 200 mm
Amazon (US) $17.99 $35.98AliExpress (EU) $11.31

Computer

Orange Pi 5

Orange Pi 5

×1

Host computer (optional, see note)

Amazon (US) $195.99
32gb+ Micro SD Card

32gb+ Micro SD Card

×1

MicroSD card for Orange Pi

Amazon (US) $33.24 / 2
Orange Pi 5 WiFi 6 + Bluetooth module

Orange Pi 5 WiFi 6 + Bluetooth module

×1

WiFi and Bluetooth for the Orange Pi. Optional.

Chip AP6275PWiFi Wi-Fi 6, dual-band 2.4 / 5 GHz, 2T2RBluetooth 5.3Size 22 × 30 mmFits Orange Pi 5 only (not 5 Plus / 5B)Includes Antennas
Powered USB Hub - 24v - 4 ports

Powered USB Hub - 24v - 4 ports

×1

Powered USB Hub(s) for webcams and Picos (see note)

Micro USB Data Cable

Micro USB Data Cable

×1

Connect Picos to host

USB Cables totally vary in quality. Ensure it supports data

Amazon (US) $9.44 / 3 Amazon FR (EU) €7.00

Electronics

TMC2209 Stepper Motor Driver Modules

TMC2209 Stepper Motor Driver Modules

×5

Driver for the all steppers

Amazon (US) $26.99 / 5 AliExpress (CN) €16.45
Raspberry Pi Pico2.54mm header pins

Pico with headers

Assembly Soldering

2 parts · click to expand

$20.48 combined
IDC ribbon cable, 16-pin (2×8), 1 m

IDC ribbon cable, 16-pin (2×8), 1 m

×1

Cable from distribution board to chute

Pins 16 (2×8), FC to FC, A-typePitch 2.54 mmLength 1 mBrand uxcell
IDC ribbon cable, 16-pin (2×8), 30 cm

IDC ribbon cable, 16-pin (2×8), 30 cm

×3
(1/layer)

Cable between layer and layer below

Pins 16 (2×8), female-to-female FCPitch 2.54 mmLength 30 cmBrand Antrader
Amazon (US) $7.99 / 6

Custom PCBs

basically Embedded Control Board

basically Embedded Control Board

×1

In-house distribution/feeder control board: Pico, stepper drivers, servo and LED outputs. 1 per machine.

Version 1.3
Coming soon to basically
basically Layer Adapter Board

basically Layer Adapter Board

×3

In-house adapter board that breaks out the control board's ribbon connectors for one distribution layer. 1 per layer.

Coming soon to basically

Wire harness

50mm LED COB - 24v

50mm LED COB - 24v

×2

Lights the feeder C-channels. One per light post.

Amazon (US) $7.99 $15.98
White/daylight LED strip - 24v

White/daylight LED strip - 24v

×1

Lighting for classification chamber

Roller lever limit switch (V-155-1C25)

Roller lever limit switch (V-155-1C25)

×1

Hinged roller-lever microswitch. Senses the chute at its home position.

24 V → 5 V USB-C buck converter

24 V → 5 V USB-C buck converter

×1

Powers the Orange Pi from the 24 V PSU.

Input DC 8–32 V (12 V / 24 V nominal)Output 5 V, 5 A max (25 W) over USB-CProtection Reverse, over-voltage, over-current, over-temp, short circuitRating IP68 potted housing

Power supply

24 V PSU, 350 W (Mean Well LRS-350-24)

24 V PSU, 350 W (Mean Well LRS-350-24)

×1

Power supply

IEC C14 inlet, switch + 10 A fuse

IEC C14 inlet, switch + 10 A fuse

×1

Mains inlet for the PSU: switched, fused, pre-wired.

Inlet IEC 320 C14, 3-pinSwitch Illuminated rocker, 15 A 250 VFuse 10 A installed (5 × 20 mm)Wiring 18 AWG, pre-attachedCutout 47 × 28 mm; holes 40 mm apart, 3.2 mm
Amazon (US) $10.99 / 2

Aluminum extrusion (2020)

Outer horizontal / Horizontal interface frame (A/G) 320mm

Outer horizontal / Horizontal interface frame (A/G)

qty TBD

2020 aluminum extrusion, cut to 320 mm (pieces A and G).

No source picked yet.
Spoke / Interface spoke, short (B/H) 158mm

Spoke / Interface spoke, short (B/H)

qty TBD

2020 aluminum extrusion, cut to 158 mm (pieces B and H).

No source picked yet.
Layer vertical support (C) 154mm

Layer vertical support (C)

qty TBD

2020 aluminum extrusion, cut to 154 mm (piece C).

No source picked yet.
Interface spoke, long (E) 238mm

Interface spoke, long (E)

qty TBD

2020 aluminum extrusion, cut to 238 mm (piece E).

No source picked yet.
Interface vertical support (F) 274mm

Interface vertical support (F)

qty TBD

2020 aluminum extrusion, cut to 274 mm (piece F).

No source picked yet.

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