Brackets and mounts
Robot Chassis Base
- Bounding box
- 200 × 200 × 4 mm
- Engine
- 3D Printing B-rep
- Parameters
- 19
- Published
- November 6, 2026
Download
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The prompt
Act as an expert OpenSCAD developer. Generate a clean, parametric OpenSCAD script for a 3D printable robot chassis base. Output ONLY the OpenSCAD code. General Dimensions: Base: 200x200 mm, thickness: 4 mm (Z from 0 to 4). Origin (0,0,0) is at the bottom-left corner. Y=0 is the REAR, Y=200 is the FRONT. CRITICAL INSTRUCTION (Anti Z-Fighting): To prevent floating skins, depressions, or rendering artifacts when the model is flipped, ALL boolean subtraction cuts (holes, slots, and cylinders) MUST be extruded from Z=-2 to Z=6 (a total cut height of 8 mm). Boolean Operations Required (Subtract only these): Wheel Wells (Rear): Left: X= -1 to 35, Y= -1 to 71. Right: X= 165 to 201, Y= -1 to 71. Encoder Slots (Horizontal, 25x10 mm): Left slot: X= 49 to 74, Y= 36 to 46. Right slot: X= 126 to 151, Y= 36 to 46. Battery Cable Hole (10x10 mm): Center at X=100, Y=30 (X= 95 to 105, Y= 25 to 35). Ball Caster Hole: Cylinder with diameter 4 mm, centered at X=100, Y=166. Motor Cable Routing Holes (10x10 mm): Left: Center X=45, Y=80 (X= 40 to 50, Y= 75 to 85). Right: Center X=155, Y=80 (X= 150 to 160, Y= 75 to 85). STRICT EXCLUSIONS: DO NOT add any PCB mounting holes (no M3 holes). DO NOT add any engravings, depressions, or visual guides for the arm area. The top and bottom surfaces must remain 100% flat and untouched. Code Structure: Use variables for dimensions (e.g., plate_thickness, cut_z_min, cut_z_max). Keep the code clean and well-commented."
Parameters
| Name | Value | Range |
|---|---|---|
| Plate width | 200 mm | 80 – 400 |
| Plate depth | 200 mm | 80 – 400 |
| Plate thickness | 4 mm | 2 – 10 |
| Wheel well width in X | 35 mm | 10 – 100 |
| Wheel well depth from rear edge in Y | 70 mm | 10 – 150 |
| Encoder slot width in X | 25 mm | 2 – 60 |
| Encoder slot height in Y | 10 mm | 2 – 30 |
| Encoder slot center Y | 41 mm | 0 – 200 |
| Inset from wheel well inner edge | 14 mm | 1 – 50 |
| Battery cable square hole size | 10 mm | 2 – 40 |
| Battery cable hole center X | 100 mm | 0 – 400 |
| Battery cable hole center Y | 30 mm | 0 – 200 |
| Ball caster hole diameter | 4 mm | 2 – 20 |
| Ball caster hole center X | 100 mm | 0 – 400 |
| Ball caster hole center Y | 166 mm | 0 – 200 |
| Motor cable square hole size | 10 mm | 2 – 40 |
| Left motor cable hole center X | 45 mm | 0 – 400 |
| Right motor cable hole center X | 155 mm | 0 – 400 |
| Motor cable hole center Y | 80 mm | 0 – 200 |
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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