Brackets and mounts
Robot Chassis Base
- Bounding box
- 200 × 200 × 4 mm
- Engine
- 3D Printing B-rep
- Parameters
- 38
- Published
- November 9, 2026
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Free to download and use. See the terms.
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. Motor Cutouts (for the TT motors to not stick out): Dimensions: 70 mm wide (X) by 32 mm tall (Y). Left Motor: Starts 13 mm from the wheel well cut. So X= 48 to 118. Centered at Y=35 (Y= 19 to 51). Right Motor: X= 82 to 152. Centered at Y=35 (Y= 19 to 51). Encoder Slots (Horizontal, 27 mm wide x 8 mm tall): Placed right behind the motors. Left slot: X= 118 to 145, Y= 31 to 39. Right slot: X= 55 to 82, Y= 31 to 39. Battery Cable Hole (10x10 mm): Center at X=100, Y=30 (X= 95 to 105, Y= 25 to 35). Center Cable Hole 2 (10x10 mm): Center at X=100, Y=55 (X= 95 to 105, Y= 50 to 60). 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. Keep the code clean and well-commented."
Parameters
| Name | Value | Range |
|---|---|---|
| Base X size | 200 mm | 50 – 400 |
| Base Y size | 200 mm | 50 – 400 |
| Base plate thickness | 4 mm | 2 – 12 |
| Left wheel-well X start | -1 mm | -50 – 100 |
| Left wheel-well X end | 35 mm | 0 – 100 |
| Right wheel-well X start | 165 mm | 100 – 250 |
| Right wheel-well X end | 201 mm | 100 – 250 |
| Wheel-well Y start | -1 mm | -50 – 100 |
| Wheel-well Y end | 71 mm | 0 – 120 |
| Left motor cutout X start | 48 mm | 0 – 200 |
| Left motor cutout X end | 118 mm | 0 – 200 |
| Right motor cutout X start | 82 mm | 0 – 200 |
| Right motor cutout X end | 152 mm | 0 – 200 |
| Motor cutout Y start | 19 mm | 0 – 100 |
| Motor cutout Y end | 51 mm | 0 – 100 |
| Left encoder slot X start | 118 mm | 0 – 200 |
| Left encoder slot X end | 145 mm | 0 – 200 |
| Right encoder slot X start | 55 mm | 0 – 200 |
| Right encoder slot X end | 82 mm | 0 – 200 |
| Encoder slot Y start | 31 mm | 0 – 100 |
| Encoder slot Y end | 39 mm | 0 – 100 |
| Battery cable hole X start | 95 mm | 0 – 200 |
| Battery cable hole X end | 105 mm | 0 – 200 |
| Battery cable hole Y start | 25 mm | 0 – 200 |
| Battery cable hole Y end | 35 mm | 0 – 200 |
| Center cable hole 2 X start | 95 mm | 0 – 200 |
| Center cable hole 2 X end | 105 mm | 0 – 200 |
| Center cable hole 2 Y start | 50 mm | 0 – 200 |
| Center cable hole 2 Y end | 60 mm | 0 – 200 |
| Left motor cable hole X start | 40 mm | 0 – 200 |
| Left motor cable hole X end | 50 mm | 0 – 200 |
| Right motor cable hole X start | 150 mm | 0 – 200 |
| Right motor cable hole X end | 160 mm | 0 – 200 |
| Motor cable hole Y start | 75 mm | 0 – 200 |
| Motor cable hole Y end | 85 mm | 0 – 200 |
| Ball caster hole X center | 100 mm | 0 – 200 |
| Ball caster hole Y center | 166 mm | 0 – 200 |
| Ball caster hole diameter | 4 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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