Greetings!

I have to get this finished. I started this at the start of C19. And I hit a roadblock and it just sits there:-) This is a large scale CNC for clay printing. I am using 2" diameter aluminum I beams.

I am going to use for the Z axis a 1500mm SBR20 rail. (The base dimensions is 45mm wide with the screw holes 30mm apart)

I don't have any metal machining access. I do 3D print.

For my X Gantry I will use 2 HGR20 Linear Guide Rail 20mm wide.

So I am trying to figure out the best way to mount these to the 50mm diameter round surface.

Any suggestions?