TrashBot Drive Module Build & Sourcing Checklist
Module 1 is pre-checked for verification; Module 2 starts blank. Purchase links open in a new tab. Checkbox state is saved in this browser.
Verify-before-buy items: the final #35 sprocket tooth counts and the exact 24 V drive-motor SKU were not reliably preserved in the project history. Match those directly to Module 1 before ordering.
Drive Module Parts List
On order
Received
Installed
| Qty / module | Part / specification | Source | Module 1 | Module 2 |
|---|---|---|---|---|
| 1 | goBILDA 1120-series U-channelMatch Module 1 length. | goBILDA | ||
| 1 | 24 V, 250 W, ~300 RPM brushed DC gear motorMatch exact Module 1 motor before ordering. | Amazon search | ||
| 1 | 9T #410 motor sprocket~11 mm keyed bore; may already be on motor. | Amazon search | ||
| 1 | 20T #420 jackshaft sprocket5/8 in keyed bore. | Amazon search | ||
| 1 | 5/8 in keyed jackshaftVerify length against Module 1. | Amazon search | ||
| 2 | UCP202-10 pillow block bearings5/8 in bore. | Surplus Center | ||
| 2 | #35 jackshaft sprockets5/8 in keyed bore; verify tooth count from Module 1. | Amazon search | ||
| 2 | #35 wheel sprocketsVerify tooth count/mounting pattern from Module 1. | Amazon search | ||
| 1 | #420 roller chainMotor to jackshaft. | Amazon search | ||
| 1+ | #420 master linkOne required; spare recommended. | OMB Warehouse | ||
| 2 | #35 roller chainsOne per wheel. | Amazon search | ||
| 2+ | #35 master linksOne per chain; spares recommended. | AndyMark | ||
| 0–2 | #35 offset / half linksOnly if needed for chain-length fit. | Amazon search | ||
| 2 | AndyMark 8 in pneumatic wheel kitsApprox. 7.65 in inflated diameter. | AndyMark | ||
| 4 | Wheel bearingsTwo per wheel; match Module 1. | AndyMark | ||
| 2 | 1/2 in stationary wheel axlesMatch Module 1 length/material. | Amazon search | ||
| 2 | Pillow-block upper adapter platesCustom CNC aluminum, 120 × 48 × 6.35 mm. | 6061 aluminum | ||
| 2 | Pillow-block lower backing platesCustom CNC aluminum, dumbbell profile. | 6061 aluminum | ||
| 1 | Motor mounting plateCopy finalized Module 1 geometry. | 6061 aluminum | ||
| 1 | Motor backing plateIf used on Module 1, duplicate it. | 6061 aluminum | ||
| As req. | 3/16 in square key stockVerify actual key size. | Amazon search | ||
| As req. | 5/8 in shaft collarsJackshaft (5/8 in) axial positioning — distinct from the 1/2 in wheel-axle collars below. | Amazon search | ||
| 4/ module | 1/2 in bore shaft collars — double split, clamp-onAxially locate each wheel on the 1/2 in stationary axles: 2 per wheel × 2 wheels = 4 per module. Your AZSSMUK 4-pack (on order, arriving tomorrow) covers one module. Newly added — verify whether Module 1 already has these or needs them retrofit. | Amazon | ||
| As req. | Shaft spacers / washers / shimsFor wheel/sprocket alignment. | Amazon search | ||
| As req. | Pillow-block mounting bolts, nuts, washersMatch Module 1. | Home Depot / Amazon | ||
| As req. | M4 mounting hardwareFor adapter plates / goBILDA mounting. | goBILDA | ||
| As req. | M6 motor mounting boltsMotor feet use M6 threads. | Home Depot / Amazon | ||
| As req. | 10 AWG stranded copper wireMotor/power wiring. | Amazon search | ||
| As req. | 10–12 AWG insulated fork terminalsYour current yellow fork terminals. | Amazon | ||
| As req. | Wire loom / clamps / zip tiesKeep wiring clear of chains/sprockets. | Amazon search |
Excluded: shared robot-level items such as the RoboClaw, battery, main fuse, master switch, regen diode, and distribution buses.
Module 1 — Verify
Structural / frame
Jackshaft
Motor and primary chain
Wheels and secondary chains
Electrical
Final verification
No purchase
No purchase
No purchase
No purchase
No purchase
Module 2 — Build
On order
Received
Installed
Structural / frame
Install goBILDA 1120-series U-channelMatch the length used on Module 1.
Install wheel axle support hardware1/2 in stationary axles; wheels rotate on bearings.
Verify all mounting hardware is tightCheck goBILDA fasteners and custom plates.
Jackshaft
Install 5/8 in keyed jackshaftKnown pattern: 5/8 in shaft with 3/16 in keyway. Verify length against Module 1.
Install two UCP202-10 5/8 in pillow blocksTwo per drive module.
Install pillow-block upper adapter plates120 × 48 × 6.35 mm; Ø11 holes 96 mm C-C; four Ø4.3 mm holes on 32 × 32 mm pattern.
Install lower backing plates120 mm dumbbell profile; 48 mm ends; 16 mm neck; Ø11 holes 96 mm C-C.
Install 20T #420 sprocket on jackshaft5/8 in keyed bore; align with motor sprocket.
Install both #35 jackshaft sprocketsIMPORTANT: duplicate tooth count from Module 1; final tooth count was not firmly preserved.
Install key stock in keyed sprocketsLikely 3/16 in square key stock for the 5/8 in keyed shaft; verify against shaft.
Install shaft collars / spacersUse as needed to lock axial positions.
Motor and primary chain
Install 24 V 250 W ~300 RPM brushed motorMatch the exact motor already used on Module 1; project history preserved specs but not a reliable product SKU.
Verify 9T #410 motor sprocketExisting sprocket on ~11 mm keyed motor shaft; duplicate only if Module 2 motor does not already include it.
Install motor mounting plate / backing plateUse the same finished plate geometry as Module 1.
Align motor and jackshaft sprocketsNo purchase normally required; use spacers/collars if needed.
Install #420 chainMotor to jackshaft. #420 chain works with your existing #410 motor sprocket.
Set motor-chain tensionNo tensioner required unless actual assembly needs one.
Install #420 master linkKeep at least one spare.
Wheels and secondary chains
Install front pneumatic wheelAndyMark 8 in Pneumatic Wheel Kit; actual inflated diameter ~7.65 in.
Install rear pneumatic wheelSame as front.
Verify wheel bearingsAndyMark hub accepts 1.125 in OD ball bearings; two per wheel. Match your Module 1 bearing bore.
Install front #35 wheel sprocketDuplicate exact tooth count / mounting arrangement from Module 1.
Install rear #35 wheel sprocketDuplicate exact tooth count / mounting arrangement from Module 1.
Align front wheel sprocket with jackshaft sprocketUse spacers/shims as required.
Align rear wheel sprocket with jackshaft sprocketUse spacers/shims as required.
Install front #35 chain3/8 in pitch #35 roller chain.
Install rear #35 chain3/8 in pitch #35 roller chain.
Set #35 chain slackIf chain length falls between standard lengths, an offset/half link is an option.
Install #35 master linksKeep spares.
Electrical
Connect motor leads to RoboClaw channelShared RoboClaw 2x15A controls both drive motors; one channel per module.
Crimp 10 AWG battery / power terminalsYou already bought 10–12 AWG fork terminals; use the ratcheting crimper setting that passed the pull test.
Use ratcheting crimperYour Plustool AWG 22–10 crimper; two extra adjustment notches worked for your terminals.
10 AWG power wireRed/black stranded copper power wire for battery/controller runs.
Secure wiring away from chains and sprocketsUse loom, clamps, zip ties, strain relief as appropriate.
Final verification
Spin drivetrain by handCheck for binding, rubbing, or tight spots.
No purchase
Verify sprocket set screws / keysNo rocking on shafts.
Verify pillow-block alignmentJackshaft should rotate freely.
No purchase
Verify wheel alignmentBoth wheels rotate freely and stay square.
No purchase
Power-test at low speedTest forward and reverse; watch chain tracking.
No purchase
Recheck fasteners after initial runLook for settling or movement.
No purchase