I made this jig for drilling out dowel holes on a 45 degree angle. This was intended as a cheap alternative to a domino joiner for use in making waterfall tables from 2"+ thick live-edge slabs.

I'll probably update after making a few. I plan on lining the holes with steel bushings to extend its useful life.

I added the fins for additional rigidity, but close enough together so they can be clamped to your workpiece

Anet A8

Doesn't Matter

Doesn't Matter

0.2

Up to you, but 10-25% should work. I like to print my shop tools thicker though.