Jigs and fixtures
FTC Intake Roller Hub
- Bounding box
- 38.1 × 38.1 × 101.6 mm
- Engine
- Precision B-rep
- Parameters
- 12
- Published
- August 22, 2026
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Free to download and use. See the terms.
The prompt
Generate a 3D-printable, lightweight mechanical component for a FIRST Tech Challenge robot. The part is an intake roller hub designed to spin a high-traction silicone sleeve. Key Dimensions & Specifications: Center Bore: D-shaft profile precisely sized for a standard 6mm D-shaft (with a 0.2mm clearance tolerance for a snug press-fit).Outer Diameter: 1.5 inches (38.1mm) cylindrical body.Width/Length: 2.0 inches (50.8mm) total axial length.Features: Include an integrated hex-nut pocket on one side for an M3 set-screw to lock onto the flat side of the D-shaft.Weight Reduction: Incorporate a 4-spoke web pattern or pocketing inside the cylinder walls to reduce rotational mass while maintaining structural integrity under high torque.
Parameters
| Name | Value | Range |
|---|---|---|
| Outer Diameter | 38.1 mm | 25 – 80 |
| Total Axial Length | 50.8 mm | 20 – 100 |
| D-Shaft Diameter | 6 mm | 5 – 10 |
| D-Shaft Clearance (Diametral) | 0.2 mm | 0.05 – 0.5 |
| D-Shaft Flat Depth | 0.5 mm | 0.1 – 2 |
| Outer Rim Wall Thickness | 3 mm | 1.5 – 6 |
| Inner Hub Diameter | 16 mm | 10 – 30 |
| Spoke Thickness | 8 mm | 3 – 15 |
| Spoke Overlap | 1 mm | 0.2 – 3 |
| Hex Nut Across Flats | 5.5 mm | 4 – 8 |
| Nut Pocket Depth | 13 mm | 5 – 18 |
| Set Screw Clearance Hole Diameter | 3.2 mm | 2.5 – 5 |
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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