3D model download for the EAKINS Microscope mount. Comes in .3MF format ready to print, this should be fine in PLA or PETG. I have modifiers on the bolt holes for more perimeters, so if you needed to enlarge the holes a bit you can (although I suggest if you have to enlarge the holes that you do the inside 75x75 holes)

If you would like one for your own mount please get a hold of me and I can do a custom fitting if mailed to me.