Enclosures and housings
Phone Cover Corner Bumpers (4-piece set)
- Bounding box
- 63.0 × 12.0 × 2.5 mm
- Engine
- Precision B-rep
- Parameters
- 6
- Published
- August 24, 2026
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The prompt
I have an existing 3D-printed phone cover that is approximately 5 mm larger than my phone overall, leaving approximately 2.5 mm of clearance on each side. I want to design four separate L-shaped corner bumper inserts that will be glued to the inside corners of the existing cover. The bumpers should reduce the clearance and hold the phone securely in place without scratching or pressing excessively on it. Each bumper should be approximately 2.3 to 2.5 mm thick toward the phone, have rounded edges, and be approximately 10 to 15 mm along each side of the L shape. Keep the center/back of the cover completely open. Make the four bumpers separate printable parts and suitable for FDM 3D printing. Please create the CAD geometry and explain the dimensions in millimeters.
Parameters
| Name | Value | Range |
|---|---|---|
| Arm Length | 12 mm | 8 – 20 |
| Arm Width | 10 mm | 6 – 15 |
| Thickness (toward phone) | 2.5 mm | 1.5 – 4 |
| Phone-Face Corner Radius | 2 mm | 0 – 3 |
| Edge Fillet Radius | 2 mm | 0 – 2 |
| Layout Gap (exploded spacing) | 5 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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