This model allows you to customize and print an astronomy filter drawer. While there are several really excellent designs out there already, none exactly matched what I was looking for. Specifically I wanted a 21mm filter drawer with M42 internal threads on one side and M42 external threads on the other - which could replace the 21mm spacer in my current ZWO ASI533 setup. This was also an excellent opportunity to learn OpenSCAD!
The attached OpenSCAD file allows you to easily customize a filter drawer and slider. Options include:
The attached OpenSCAD file allows you to easily customize a filter drawer and slider. Options include:
- Customizable drawer height
- Customizable drawer diameter
- Internal or External metric threads on either side, with customizable diameter and pitch
- See this website for a list of common astronomy thread diameter/pitch Astronomy Threads Explained
- [Optional] magnet sizes (if you want to use small neodynium magnets to ensure filter trays don't drop out
