Gears and transmission
3 lb Beetleweight Combat Robot Chassis
- Bounding box
- 270.6 × 276.0 × 53.0 mm
- Engine
- Precision B-rep
- Parameters
- 22
- Published
- September 24, 2026
Download
Free to download and use. See the terms.
The prompt
Build an interactive 3D model (single HTML file, three.js) of a 3 lb beetleweight combat robot: a hybrid of Vespula and Lynx. SHAPE: Sleek, low, streamlined. Use smooth curves, beveled edges, and sloped surfaces. No plain boxes. Wide sloped wedge nose flowing into rounded side plates and a tapered, rounded tail. Symmetrical so it works upside-down. FROM VESPULA: - 2-wheel drive with 2.5" wheels tucked inside thick side armor - Grade 5 titanium side plates, 4mm, with lightening holes - Invertible: UHMW top rails and a rounded rear bumper - TPU shock-cell around the electronics FROM LYNX: - Low 2mm titanium ramp/wedge that scoops under opponents - Single-tooth asymmetric 7075 aluminum eggbeater bar behind the wedge, spinning - Outrunner weapon motor with a timing belt to the bar - Anti-spark power switch on top INTERNALS: 2x 2207 gearmotors, dual ESC, weapon ESC, 4S 1000mAh LiPo, wiring. DETAILS: Anodized gold bar, raw titanium plates, rubber tires with hub cutouts, screw heads, soft shadows, metal reflections. UI: Orbit and zoom controls, part toggles, and a weight panel totaling under
Parameters
| Name | Value | Range |
|---|---|---|
| Overall Length | 280 mm | 200 – 350 |
| Overall Width | 180 mm | 120 – 250 |
| Overall Height | 45 mm | 30 – 60 |
| Front Wedge Length | 90 mm | 50 – 150 |
| Tail Radius | 20 mm | 5 – 30 |
| Front Fillet | 3 mm | 0.5 – 8 |
| Side Plate Thickness | 4 mm | 2 – 6 |
| Wheel Radius | 31.75 mm | 20 – 40 |
| Wheel Pocket Depth | 22 mm | 10 – 35 |
| Wheel X Position | 115 mm | 80 – 160 |
| Lightening Hole Diameter | 10 mm | 4 – 20 |
| Lightening Holes per Row | 3 count | 1 – 6 |
| Lightening Holes X Start | 120 mm | 60 – 200 |
| Lightening Holes X End | 220 mm | 100 – 280 |
| Power Switch Width | 12 mm | 6 – 20 |
| Power Switch Length | 20 mm | 10 – 30 |
| Power Switch Height | 8 mm | 3 – 15 |
| Switch X Position | 150 mm | 80 – 220 |
| Switch Y Position | 90 mm | 20 – 160 |
| Eggbeater Bar Radius | 8 mm | 3 – 15 |
| Eggbeater Bar X Position | 100 mm | 50 – 150 |
| Eggbeater Bar Z Offset from Top | 6 mm | 2 – 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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