Normaly I start my texts with "I needed something, so I made it" but this time... I did not need a screw press. But I made one ... and do not know why...? I was playing around with my CAD system and designing printable threads when this simple press came out of my printer. I have no idea what to do with this thing. Right now I am using it as a nutcracker. Maybe you can press-in or press-out ball bearings as well?

The press body is a two-piece design. If you need a special shape you can easily design it and bolt it to the other half. The small bolts are M10, the large one is M20.

I printed this press with three walls and 30% infill at 0.2 layers. Roubst enough for nuts, I guess.