Gears and transmission
2WD Sumo Robot with Removable Wedge
- Bounding box
- 322.0 × 400.0 × 83.0 mm
- Engine
- Precision B-rep
- Parameters
- 60
- Published
- November 13, 2026
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The prompt
Design a compact, aggressive 2-wheel-drive competition SUMO ROBOT. Main chassis: 260×200×6 mm plywood. 2 STD D-shaft gear motors. 2 wheels: Ø50×20 mm. Controller board: 100×60 mm. Battery holder: 76×61 mm. 5 ultrasonic sensors and 3 HW-870 IR sensors. Create a low-profile, wedge-front body with angled side armor, protected wheels, low center of gravity, and a professional competition appearance. Make the front wedge a separate removable part. Keep the design manufacturable from flat plywood using screws and simple cuts. Do not invent unknown motor or sensor mounting dimensions; leave those interfaces adjustable. Generate the 3D CAD model with a realistic mechanical layout, not a simple rectangular box.
Parameters
| Name | Value | Range |
|---|---|---|
| Chassis Length | 260 mm | 180 – 400 |
| Chassis Width | 200 mm | 150 – 300 |
| Chassis Thickness | 6 mm | 3 – 12 |
| Wheel Slot X Position | 80 mm | -130 – 130 |
| Wheel Slot Y Offset | 85 mm | 50 – 100 |
| Wheel Slot Length | 50 mm | 20 – 80 |
| Wheel Slot Width | 20 mm | 10 – 40 |
| Cable Slot X Position | -40 mm | -130 – 130 |
| Cable Slot Y Position | 0 mm | -100 – 100 |
| Cable Slot Length | 80 mm | 20 – 160 |
| Cable Slot Width | 20 mm | 10 – 60 |
| Lightening Hole Diameter | 35 mm | 5 – 80 |
| Front Wedge Width | 200 mm | 100 – 220 |
| Front Wedge Length | 50 mm | 30 – 100 |
| Front Wedge Height | 22 mm | 10 – 50 |
| Side Armor Length | 190 mm | 120 – 260 |
| Side Armor Height | 35 mm | 20 – 60 |
| Side Armor Thickness | 6 mm | 3 – 12 |
| Side Armor Angle | 15 deg | 0 – 40 |
| Wheel Arch Diameter | 55 mm | 30 – 80 |
| Wheel Center X | 80 mm | -130 – 130 |
| Wheel Center Z | -15 mm | -40 – 20 |
| Rear Bumper Length | 200 mm | 150 – 220 |
| Rear Bumper Depth | 12 mm | 5 – 30 |
| Rear Bumper Height | 20 mm | 10 – 50 |
| Motor Body Length | 30 mm | 15 – 60 |
| Motor Body Width | 20 mm | 10 – 40 |
| Motor Body Height | 20 mm | 10 – 40 |
| Motor Center X | 70 mm | -130 – 130 |
| Motor Y Offset | 80 mm | 40 – 100 |
| Motor Z Center | -10 mm | -30 – 20 |
| Wheel Diameter | 50 mm | 30 – 100 |
| Wheel Width | 20 mm | 10 – 40 |
| Wheel Center Y Offset | 85 mm | 60 – 100 |
| Wheel Bore Diameter | 6 mm | 3 – 12 |
| Controller PCB Length | 100 mm | 50 – 160 |
| Controller PCB Width | 60 mm | 30 – 100 |
| Controller PCB Thickness | 2 mm | 1 – 5 |
| Controller PCB Center X | -20 mm | -130 – 130 |
| Controller PCB Bottom Z | 6 mm | 3 – 20 |
| Battery Holder Length | 76 mm | 40 – 120 |
| Battery Holder Width | 61 mm | 30 – 100 |
| Battery Holder Height | 25 mm | 10 – 60 |
| Battery Center X | -80 mm | -130 – 130 |
| PCB Standoff Diameter | 6 mm | 3 – 12 |
| PCB Standoff Height | 12 mm | 5 – 30 |
| Standoff X Offset | 40 mm | 10 – 80 |
| Standoff Y Offset | 25 mm | 10 – 50 |
| Ultrasonic Sensor Length | 20 mm | 10 – 50 |
| Ultrasonic Sensor Width | 14 mm | 8 – 30 |
| Ultrasonic Sensor Height | 10 mm | 5 – 25 |
| Ultrasonic Mid X Position | 155 mm | 130 – 180 |
| Ultrasonic Y Spacing | 40 mm | 10 – 80 |
| Ultrasonic Corner X Position | 170 mm | 130 – 180 |
| Ultrasonic Corner Y Offset | 55 mm | 20 – 90 |
| IR Sensor Length | 20 mm | 10 – 40 |
| IR Sensor Width | 12 mm | 8 – 30 |
| IR Sensor Height | 10 mm | 5 – 25 |
| IR Sensor X Position | 170 mm | 130 – 180 |
| IR Sensor Y Spacing | 30 mm | 10 – 60 |
Every value above is a live dimension. Open a model like this in the editor and each one becomes a slider you can drag before exporting.
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