Noel suggested creating a new area for design files including 3D models for printing, DXF files for laser cutting etc.  So, just below the Tech Forum, you'll find the design files.

I've moved the ones I could find but if I've missed any, please let me know.   It's not a discussion board, but rather somewhere to share designs and make them easy to find.  If you are posting, please use a simple, clear and descriptive title for your post.   One topic per design please.  If you want to upload an STL or similar file that won't load, just put it into a zip file and load that.

https://cyclekartsgb.createaforum.com/design-files/