CNC laser or engraver

Evolution of my previous CNC plasma cutting.
Dimensions fixe by square tubes lenght. 500 x 500mm works fine.
For Z axe, turn 1 of the 2 nuts face by face, and try for minimum backlash. When it's fine, use glue to fix nuts.

Need :
30x30 square tubes, alu or stainless steel.
608 ball bearing.
Nema 17.
GT2 belts and pulleys.
EndStop parts from 3D printer.
M8, M5, M4 screws and nuts. Standard lenght.
8mm shaft pour Z axe.

RS540 motor or better, or laser module.

Reprise et évolution