@timchpi said in Open source printer:

And then I designed my own electronic because I never found any electronic that supports individually controlled Z-axis motor, with true auto-balancing.
Which, I have seen on the wishlist of the Duet3D.

Do you mean this https://duet3d.dozuki.com/Wiki/Bed_levelling_using_multiple_independent_Z_motors, or something else?

Anyway, I am thinking about giving the design files to someone or a team that has experience in open source and that I can trust, and Duet 3D seems perfect.

Sadly, at Duet3D we don't have time to pursue even all of the electronics-based ideas that we some up with, and we're not really into mechanical design. But perhaps someone else on this forum may be interested.