Got a great progress in the assembly, with the arrival of some missing size bolts, I was able to assemble the “cutting zone” profiles to the chassis, and it made it even more rigid. Mounted all of the ball nuts to X,Y,Z axes. There is just the holder plate for spindle that is not assembled and after that the main assembly is done besides the electrical box.

While working I spent approx. 50 mins just to make a ball screw fit a screw bed, which I still don’t know why it was very hard to. Also because I don’t have enough M4 bolts, I had to drill&expand mounting holes of the ball screw beds and used M5 bolts instead, and it was pretty hard to do without damaging the internal system of them, especially without a vise I had to hold it with pliers:)

At the moment Y axis parts and mechanisms are all done, X just the same, and Z axis near completion. It seems like all the ball screws are rigid enough and it excites me to build the machine and see the tolerances.

The thing I’m waiting for to complete is that I couldn’t find the right couplers to fix the NEMA17’s shaft to the ball screws so I ordered online and probably it will arrive on 10th or 11th of August. After that, there is the electrical part like mounting and wiring the VFD, 12V PSU, and an input socket.

I’ll do my best to publish the progress, and to update the CAD parts at github.