Gears and transmission
Cordless Drill Gearbox Housing
- Bounding box
- 80.0 × 80.0 × 66.0 mm
- Engine
- Precision B-rep
- Parameters
- 14
- Published
- August 29, 2026
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The prompt
Create a cylindrical cordless-drill gearbox housing as a single manufacturable plastic component. The main body should be a hollow cylindrical shell with a stepped outer diameter. Add a larger circular mounting flange at the front with a large concentric central opening. Add four evenly spaced mounting holes around the front flange. Include four longitudinal external reinforcing ribs connecting the main cylindrical body to the front flange. Add a smaller stepped cylindrical section at the rear for locating the motor/gearbox assembly. Use consistent thin wall thickness, rounded fillets at rib and flange transitions, and smooth injection-mouldable geometry. Keep the design mechanically realistic, symmetrical around the main shaft axis, lightweight, and relatively simple. Do not add gears, motor, chuck, screws, threads, logos, cosmetic details, or complex surface styling.
Parameters
| Name | Value | Range |
|---|---|---|
| Flange Diameter | 80 mm | 50 – 120 |
| Flange Thickness | 6 mm | 3 – 12 |
| Main Body Diameter | 60 mm | 40 – 90 |
| Main Body Length | 40 mm | 20 – 80 |
| Rear Section Diameter | 48 mm | 30 – 70 |
| Rear Section Length | 20 mm | 10 – 40 |
| Wall Thickness | 3 mm | 1 – 6 |
| Mounting Hole Circle Dia | 68 mm | 55 – 100 |
| Mounting Hole Diameter | 5.5 mm | 2 – 10 |
| Mounting Hole Count | 4 mm | 3 – 8 |
| Rib Width | 4 mm | 2 – 10 |
| Rib Height | 5 mm | 3 – 10 |
| Rib Length | 30 mm | 10 – 50 |
| Fillet Radius | 1.5 mm | 0.2 – 4 |
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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