Gears and transmission
Two-Deck Sumobot Chassis
- Bounding box
- 150 × 150 × 52 mm
- Engine
- 3D Printing B-rep
- Parameters
- 21
- Published
- November 5, 2026
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The prompt
A simple two-deck sumobot chassis, 150mm wide x 150mm long. Lower base plate with mounting cutouts for two GM-series gear motors and 69mm wheels. A second parallel top deck plate elevated by M3 standoffs. Four exterior perimeter walls surrounding the structure with side cutouts for the wheels. Clean, simple, 3D-printable parametric design.
Parameters
| Name | Value | Range |
|---|---|---|
| Overall chassis footprint | 150 mm | 100 – 250 |
| Base plate thickness | 4 mm | 2 – 10 |
| Top deck thickness | 4 mm | 2 – 10 |
| Perimeter wall thickness | 4 mm | 2 – 8 |
| Perimeter wall height | 34 mm | 15 – 80 |
| Chassis corner rounding | 8 mm | 0 – 25 |
| Gap between base top and deck underside | 44 mm | 15 – 90 |
| Deck inset from chassis edge | 0 mm | 0 – 6 |
| Central deck lightening cutout | 60 mm | 0 – 140 |
| Wheel axle height above build plate | 10 mm | 5 – 60 |
| Drive wheel diameter | 69 mm | 30 – 120 |
| Drive wheel width | 26 mm | 10 – 60 |
| Clearance around wheel in its bay | 3 mm | 0.5 – 10 |
| Depth of the wheel bay into the chassis | 20 mm | 5 – 60 |
| Motor cutout length along X | 32 mm | 20 – 80 |
| Motor cutout width along Y | 30 mm | 15 – 60 |
| Motor cutout centre from chassis centre | 36 mm | 10 – 70 |
| M3 clearance hole | 3.4 mm | 3 – 5 |
| M3 self-tapping pilot hole | 2.6 mm | 2 – 4 |
| Standoff outer diameter | 7 mm | 5 – 12 |
| Standoff centre inset from chassis edge | 8 mm | 4 – 20 |
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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