This is a variable/adjustable laser alignment base.
It uses self adhesive mirrors from ttps://www.wish.com/geek (about 100 for 2$).
One set of files orients the mirror at 10° increments, the second set of files is for an infinitely adjustable base and uses a tapered press fit.
I happen to have been working in microns so you need to convert to millimeters and then scale up like 10.
3-D printer: Afina
CAD Program: trueSpace 6.6
Art to part: 45 minutes
Project notes: both files work well with minimal cleanup.