Summary

This is a somewhat modular system. You can use your prefered method of threading the Thumbwheel. You can also chose between a straight holder or 30°. If you need another angle leave a comment and I'll see what I can do.

After some experimenting I found the best solution for me was to print the "thumbwheel_integrated_thread" and the "main_holder_30_degree" in SLA, the "rubber_feet" and the "connector_for_30_degree_holder" in TPU and throw it together. You could also use doublesided tape or even glue to affix the Saphe to the holder.

The mount is designed around a cuctioncup with M4 threading, I bought mine from Amazon:
https://www.amazon.de/gp/product/B07QW2MM1Y