This printer is designed to cost less than 120$ without giving up on quality.
The build volume is 235*205*195 mm^3.
Initially, I planned on using 28byj-48 steppers for Z-axis, to save a bit, thinking I will accept their slowness … but no! It was almost paint full to watch so I upgraded for nema 17!
2 More CAD pictures:
A small video of the machine at work: