My desk is 29mm thick, but works also with thinner desks, i put a strip o velcro between my desk and my poop drainer. It works very well.
The ramp needs 2/3 3x8 magnets and 3x12mm screws with nuts. I used some glue to lock the nuts
I printed with support tree and went good. layer 0.2
There is a version without my logo also.
https://www.youtube.com/shorts/Wz4iURltJ_U
The author marked this model as their own original creation.