This is a dual Hand Wheel holder for 2 rotary encoders.

https://www.amazon.com/dp/B07K254YCG?psc=1&ref=ppx_yo2ov_dt_b_product_details

I added 3 more screws in the actually STL files to better secure it. The pictures are of my test print.

Unit is held together with5 ea 3mm x 15mm self tapping flathead screws.

Hope you find it useful.

Cheers

Kisssys