This machine was designed with the goal of being fully 3d printed. The price for this machine (Excluding control electronics) is about 600$. The frame is made up of 2020 and 2080 extrusions. The motion is handled by MGN15H linear rails, ball screws and Nema 23 Stepper motors (Nema 17 for Z-Axis). Due to this there is no play and the entire machine is very rigid and accurate.
It has a usable build volume of 360x360x75mm
If interested about the build process, I made a video about that: https://youtu.be/GlJae67H9mo There is also a video about the electronics: https://www.youtube.com/watch?v=l93nA2cq8AY First machined part: https://www.youtube.com/watch?v=HnPgMNhFqeY Testing some materials: https://www.youtube.com/watch?v=mrgjkNgXUfE
Playlist: https://www.youtube.com/watch?v=GlJae67H9mo&list=PLVfOFW5xBHStf1y7x-9UYrqYRcM5o7rV_&index=1&t=0s
You can also check out the Thingiverse page. There may be some files that I can't upload here. https://www.thingiverse.com/thing:5344348
Update (22.03.2022): I've added the parts used for the electronics Warning: mount_01 leaves mains voltage exposed. Don't use it if you don't think of fixing it.
Update (27.07.2022): After a bit of machining I had to make a change to the machine. I updated the Z_Carrig_Main_Part model to use a better mounting solution for the 500w spindle. I also updated the Spacer_Normal_14 model (no name change). I'm not making it part of the main file because I haven't and won't test it. However, it should be a much better solution since it eliminates the need to drill precise holes in the baseplate. I would recomend using it instead of Spacer_Normal_14 and Spacer_corner_1.
Check out my latest video where I not only show these changes but also how I machined something from multiple sides. https://www.youtube.com/watch?v=QsKsJzvEbPQ