Enclosures and housings
Chunky Eraser Phone Case
- Bounding box
- 66.0 × 106.0 × 28.0 mm
- Engine
- Precision B-rep
- Parameters
- 18
- Published
- October 4, 2026
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Free to download and use. See the terms.
The prompt
DO NOT make a solid rectangular block or a flat slab. I need a FUNCTIONAL PHONE CASE whose OUTSIDE SHAPE looks like a chunky rectangular school eraser. The case must be HOLLOW INSIDE. The phone must physically slide into the cavity from the SCREEN SIDE. The cavity must follow the phone’s 90 × 50 × 8.5 mm dimensions with about 0.4 mm clearance. IMPORTANT: The exterior must look like an oversized eraser, approximately 106 × 66 × 28 mm, with thick rounded sides and heavily rounded corners. Think of a large physical eraser, not a normal smartphone case. The screen side must be completely open except for a small internal retaining lip/groove around the perimeter. The phone should snap into this groove and be removable by pulling it back out. The BACK of the case must be solid except for ONE camera opening. For the camera: make ONLY ONE opening for the top camera’s raised blue/silver housing. Do not make holes for the other two cameras, flash, microphone, or anything else. There must be NO hole in the middle of the back, no random openings, and no decorative holes. Add a subtle recessed seam near one end so the exterior resembles the eraser in my reference image. No text. No logo. No “ERASER” lettering. All one continuous white-printable body. Before generating the final model, verify that the phone cavity is actually hollow and that the phone can be inserted and removed.
Parameters
| Name | Value | Range |
|---|---|---|
| Phone length | 90 mm | 70 – 120 |
| Phone width | 50 mm | 40 – 80 |
| Phone thickness | 8.5 mm | 6 – 15 |
| Phone clearance | 0.4 mm | 0.1 – 1 |
| Outer wall thickness | 7.6 mm | 2.5 – 15 |
| Bottom wall thickness | 17.6 mm | 2 – 20 |
| Corner radius | 10 mm | 1 – 20 |
| Edge radius | 2 mm | 0.5 – 5 |
| Snap lip height | 1.5 mm | 0.5 – 5 |
| Snap depth | 0.3 mm | 0.1 – 2 |
| Camera housing width (X) | 12 mm | 4 – 20 |
| Camera housing length (Y) | 12 mm | 4 – 20 |
| Camera distance from top | 16 mm | 5 – 40 |
| Camera X offset | 0 mm | -30 – 30 |
| Camera corner radius | 2 mm | 0.5 – 6 |
| Seam depth | 0.6 mm | 0.1 – 2 |
| Seam width | 3 mm | 0.5 – 8 |
| Seam Y offset from end | 12 mm | 0 – 50 |
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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