Gears and transmission
Left Drive Module Side Chassis
- Bounding box
- 120.0 × 57.0 × 65.0 mm
- Engine
- Precision B-rep
- Parameters
- 22
- Published
- September 18, 2026
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The prompt
Create a parametric mechanical side chassis for the left drive module of a compact pipe inspection robot. Use millimetres. Overall chassis dimensions: - length: 120 mm - height: 65 mm - width: 45 mm - wall thickness: 3 mm The chassis must be a rigid rectangular side module with rounded external corners. Create mounting provisions for a small geared DC motor near the rear of the module. The motor mounting interface must be a flat internal mounting surface with two M2.5 mounting holes. Create a front idler-wheel mounting location and a rear drive-wheel mounting location. Both wheel axes must be parallel and aligned horizontally. The drive-wheel shaft axis must pass completely through the chassis side walls and remain concentric with the wheel mounting openings. Add four M3 mounting holes on the upper surface for attaching the central adaptive mechanism. Add two M3 mounting holes on the lower surface for optional skid/contact components. Keep all major dimensions parametric and editable. Design the part as a watertight solid suitable for FDM 3D printing. Use simple mechanical geometry. Avoid unnecessary decorative features.
Parameters
| Name | Value | Range |
|---|---|---|
| Chassis Length (X) | 120 mm | 40 – 400 |
| Chassis Width (Y) | 45 mm | 20 – 200 |
| Chassis Height (Z) | 65 mm | 25 – 250 |
| Wall Thickness | 3 mm | 1.2 – 10 |
| External Corner Radius | 8 mm | 0 – 20 |
| Inboard Access Window Length | 60 mm | 0 – 200 |
| Inboard Access Window Height | 35 mm | 0 – 150 |
| Motor Hole Dia (M2.5 clearance) | 2.7 mm | 1 – 8 |
| Motor Hole Spacing | 16 mm | 4 – 40 |
| Motor Hole Axial Position | 45 mm | -200 – 200 |
| Drive Wheel Axis Position (X) | 38 mm | -300 – 300 |
| Idler Wheel Axis Position (X) | -38 mm | -300 – 300 |
| Wheel Axis Height (Z) | -5 mm | -100 – 100 |
| Drive Shaft Bore Dia | 6 mm | 1 – 30 |
| Idler Shaft Bore Dia | 5 mm | 1 – 30 |
| Wheel Boss Outer Dia | 14 mm | 2 – 60 |
| Wheel Boss Protrusion | 5 mm | 0 – 20 |
| Top Hole Dia (M3 clearance) | 3.2 mm | 1 – 10 |
| Top Hole Pattern (X) | 60 mm | 2 – 300 |
| Top Hole Pattern (Y) | 24 mm | 2 – 150 |
| Bottom Hole Dia (M3 clearance) | 3.2 mm | 1 – 10 |
| Bottom Hole Spacing (X) | 40 mm | 2 – 300 |
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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