Enclosures and housings
Movement Spacer for NH35 Case (Miyota 2035)
- Bounding box
- 30.5 × 30.5 × 6 mm
- Engine
- 3D Printing B-rep
- Parameters
- 11
- Published
- November 7, 2026
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The prompt
Review the attached technical drawing of a Miyota 2035 movement and produce an stl file for a movement spacer that will fit an NH35 watch case. The movement spacer should have a diameter of 30.5mm and the movement should be inserted into the spacer with a friction fit and supported from below with a stepped edge. The movement should sit flush in the spacer. I already have a base design but the stem slot should be "closed" at the top (wall continues) and the height of this spacer should be 6mm in total to account for the watch caseback but this should just be a continuation of the walls as the important part is the area the movement fits into
Parameters
| Name | Value | Range |
|---|---|---|
| Spacer outer diameter | 30.5 mm | 20 – 40 |
| Total spacer height | 6 mm | 3 – 12 |
| Movement diameter | 26 mm | 18 – 32 |
| Movement recess depth | 3.1 mm | 1 – 8 |
| Diametral friction-fit clearance | 0.2 mm | 0.05 – 0.6 |
| Bottom support ledge width | 1 mm | 0.5 – 3 |
| Top lead-in chamfer | 0.6 mm | 0 – 2 |
| Stem slot width | 1.8 mm | 0.8 – 4 |
| Stem slot height | 1.4 mm | 0.6 – 4 |
| Wall left above stem slot | 1 mm | 0.6 – 3 |
| Bottom outer chamfer | 0.4 mm | 0 – 1.5 |
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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