> For the complete documentation index, see [llms.txt](https://docs.revrobotics.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.revrobotics.com/ftc-kickoff-concepts/home/bill-of-materials.md). # Bill of Materials The 2025-26 REV DUO Starter Bot is designed to be built using the FTC Starter Kit V3.1 ([REV-45-3529](https://www.revrobotics.com/rev-45-3529/)), DUO Control Bundle ([REV-35-2709](https://www.revrobotics.com/rev-35-2709/)), and Polycarbonate Sheet - 2mm - 8mm Grid Pattern ([REV-41-7537](https://www.revrobotics.com/Polycarbonate-Sheets/)). {% hint style="info" %} Please note that if you purchased your FTC Starter Kit V3.1 before the summer of 2025, you will need to purchase the following: * QTY 1 - [5mm Hex Bearing Block (REV-41-1683)](https://www.revrobotics.com/rev-41-1683/) {% endhint %} ## Full Robot
PART NUMBERDESCRIPTIONQTY.
REV-41-13251.5mm Spacer1
REV-41-133810 Tooth #25 Sprocket8
REV-31-130212V Slim Battery1
REV-41-131715mm Bearing Pillow Block2
REV-41-156815mm Extrusion - 120mm - 90° Ends3
REV-41-143115mm Extrusion - 225mm - 90° Ends5
REV-41-143215mm Extrusion - 420mm - 90° Ends9
REV-41-148515mm Metal Bent Servo Bracket V22
REV-41-130815mm Plastic 30 Degree Bracket2
REV-41-130515mm Plastic 90 Degree Bracket32
REV-41-132015mm Plastic Inside Corner Bracket9
REV-41-132115mm Plastic Lap Corner Bracket15
REV-41-130315mm Plastic Motion Bracket4
REV-41-130415mm Plastic Rod End Bracket2
REV-41-132315mm Spacer12
REV-41-134020 Tooth #25 Sprocket2
REV-41-13243mm Spacer33
REV-41-176745mm x 15mm C Channel - 248mm2
REV-41-176245mm x 15mm C Channel - 408mm4
REV-41-16835mm Hex Bearing Block1
REV-41-13625mm x 400mm Hex Shaft4
REV-41-13485mm x 90mm Hex Shaft6
REV-41-133560 Tooth Plastic Gear2
REV-41-133790 Tooth Plastic Gear4
REV-41-126790mm Grip Wheel4
REV-41-119090mm Omni Wheel2
REV-41-135490mm Traction Wheel2
REV-41-1820Aluminum Double Servo Arm1
REV-41-1828Aluminum Servo Horn V21
REV-41-1166Battery Holder Plate1
REV-31-1595Control Hub1
REV-41-1300Core Hex Motor1
REV-41-2702Intake Flap - 5mm Hex - 40A Dark Gray8
REV-41-1361M3 Nyloc Nut309
REV-41-1492M3 Standoff - 40mm8
REV-41-1360M3 x 16mm Hex Cap Screw32
REV-41-1124M3 x 20mm Hex Cap Screw6
REV-41-1359M3 x 8mm Hex Cap Screw337
REV-41-1327Shaft Collars24
REV-41-3334Smart Robot Servo V2 - Balanced2
REV-41-2150Soft (Light Gray) - 5mm Hex Bore - 1in Grip Wheel4
REV-31-1387Switch Cable and Bracket1
REV-41-1702Tensioning Bushing - 39mm8
REV-41-1329Through Bore Bearing - Long9
REV-41-1326Through Bore Bearing - Short14
REV-41-1687U Channel Endcap4
REV-41-1623UltraPlanetary Bent Mounting Bracket2
REV-41-1600UltraPlanetary Gearbox Kit & HD Hex Motor3
REV-41-1621UltraPlanetary Outside Mounting Bracket2
REV-41-1373Hook and Loop Fastener - 13.5mm x 2mm1
REV-41-1365#25 Roller Chain - 10 ft1
REV-41-7537Polycarbonate Sheet - 2mm - 8mm Grid Pattern1
## Mechanism Bill of Materials Below are the bill of materials for the individual mechanisms. Use these for purchasing if you are looking to build just a single mechanism. If you are looking to build the complete Starter Bot, use the [Full Robot ](#full-robot)bill of materials. ### Drivetrain
Part numberDescriptionQTY.
REV-31-1387Switch Cable and Bracket1
REV-31-1595Control Hub1
REV-31-130212V Slim Battery1
REV-41-1166Battery Holder Plate1
REV-41-130515mm Plastic 90 Degree Bracket14
REV-41-176745mm x 15mm C Channel - 248mm2
REV-41-126790mm Grip Wheel2
REV-41-135490mm Traction Wheel2
REV-41-1615UltraPlanetary Female 5mm Hex Output V22
REV-41-1607UltraPlanetary 550 Motor Plate2
REV-41-1291HD Hex Motor No Gearbox2
REV-41-1608UltraPlanetary 550 Motor Pinion Gear - 13 Tooth2
REV-41-1603UltraPlanetary Cartridge - 5:12
REV-41-1602UltraPlanetary Cartridge - 4:12
REV-41-1609UltraPlanetary Hardware Pack2
REV-41-13485mm x 90mm Hex Shaft6
REV-41-1326Through Bore Bearing - Short14
REV-41-1492M3 Standoff - 40mm8
REV-41-176245mm x 15mm C Channel - 408mm4
REV-41-13243mm Spacer18
REV-41-1702Tensioning Bushing - 39mm8
REV-41-133810 Tooth #25 Sprocket8
REV-41-1327Shaft Collars12
REV-41-119090mm Omni Wheel2
REV-41-1329Through Bore Bearing - Long4
REV-41-1687U Channel Endcap4
REV-41-132315mm Spacer2
REV-41-1621UltraPlanetary Outside Mounting Bracket2
REV-41-143215mm Extrusion - 420mm - 90° Ends4
REV-41-1359M3 x 8mm Hex Cap Screw171
REV-41-1361M3 Nyloc Nut133
REV-41-1360M3 x 16mm Hex Cap Screw12
REV-41-132115mm Plastic Lap Corner Bracket4
REV-41-132015mm Plastic Inside Corner Bracket4
REV-41-1365#25 Roller Chain - 10 ft1
### Intake
Part numberDescriptionQTY.
REV-41-1327Shaft Collars6
REV-41-13243mm Spacer7
REV-41-7537Polycarbonate Sheet - 2mm - 8mm Grid Pattern1
REV-41-1300Core Hex Motor1
REV-41-132315mm Spacer9
REV-41-130315mm Plastic Motion Bracket4
REV-41-1329Through Bore Bearing - Long3
REV-41-134020 Tooth #25 Sprocket2
REV-41-143115mm Extrusion - 225mm - 90° Ends2
REV-41-13625mm x 400mm Hex Shaft2
REV-41-143215mm Extrusion - 420mm - 90° Ends2
REV-41-130515mm Plastic 90 Degree Bracket4
REV-41-132115mm Plastic Lap Corner Bracket3
REV-41-2702Intake Flap - 5mm Hex - 40A Dark Gray (REV-41-2702)8
REV-41-1361M3 Nyloc Nut36
REV-41-1359M3 x 8mm Hex Cap Screw37
REV-41-1360M3 x 16mm Hex Cap Screw2
REV-41-1365#25 Roller Chain - 10 ft1
### Superstructure
Part numberDescriptionQTY.
REV-41-1361M3 Nyloc Nut104
REV-41-1359M3 x 8mm Hex Cap Screw98
REV-41-132015mm Plastic Inside Corner Bracket4
REV-41-132115mm Plastic Lap Corner Bracket6
REV-41-7537Polycarbonate Sheet - 2mm - 8mm Grid Pattern1
REV-41-130515mm Plastic 90 Degree Bracket12
REV-41-143115mm Extrusion - 225mm - 90° Ends3
REV-41-130415mm Plastic Rod End Bracket2
REV-41-156815mm Extrusion - 120mm - 90° Ends2
REV-41-143215mm Extrusion - 420mm - 90° Ends4
REV-41-1360M3 x 16mm Hex Cap Screw6
### Feeder
Part numberDescriptionQTY.
REV-41-13243mm Spacer6
REV-41-132315mm Spacer1
REV-41-3334Smart Robot Servo V2 - Balanced (REV-41-3334)1
REV-41-1329Through Bore Bearing - Long2
REV-41-148515mm Metal Bent Servo Bracket V21
REV-41-133560 Tooth Plastic Gear2
REV-41-1327Shaft Collars4
REV-41-1828Aluminum Servo Horn V21
REV-41-131715mm Bearing Pillow Block2
REV-41-13625mm x 400mm Hex Shaft1
REV-41-2150Soft (Light Gray) - 5mm Hex Bore - 1in Grip Wheel4
REV-41-1359M3 x 8mm Hex Cap Screw1
REV-41-1360M3 x 16mm Hex Cap Screw4
REV-41-1361M3 Nyloc Nut4
REV-41-1124M3 x 20mm Hex Cap Screw6
### Launcher
Part numberDescriptionQTY.
REV-41-1327Shaft Collars2
REV-41-13625mm x 400mm Hex Shaft1
REV-41-133790 Tooth Plastic Gear4
REV-41-1623UltraPlanetary Bent Mounting Bracket2
REV-41-1615UltraPlanetary Female 5mm Hex Output V21
REV-41-1607UltraPlanetary 550 Motor Plate1
REV-41-1291HD Hex Motor No Gearbox1
REV-41-1608UltraPlanetary 550 Motor Pinion Gear - 13 Tooth1
REV-41-1609UltraPlanetary Hardware Pack1
REV-41-126790mm Grip Wheel2
REV-41-1359M3 x 8mm Hex Cap Screw7
REV-41-1361M3 Nyloc Nut6
REV-41-1360M3 x 16mm Hex Cap Screw4
REV-41-13251.5mm Spacer1
REV-41-13243mm Spacer2
REV-41-16835mm Hex Bearing Block1
### Pollen Pusher
Part numberDescriptionQTY.
REV-41-130815mm Plastic 30 Degree Bracket2
REV-41-1820Aluminum Double Servo Arm1
REV-41-132015mm Plastic Inside Corner Bracket1
REV-41-156815mm Extrusion - 120mm - 90° Ends3
REV-41-132115mm Plastic Lap Corner Bracket2
REV-41-130515mm Plastic 90 Degree Bracket2
REV-41-1359M3 x 8mm Hex Cap Screw23
REV-41-1361M3 Nyloc Nut26
REV-41-148515mm Metal Bent Servo Bracket V21
REV-41-3334Smart Robot Servo V2 - Balanced (REV-41-3334)1
REV-41-1360M3 x 16mm Hex Cap Screw4