My latest printer project,3 mm lasercut,10 mm smoothrods,300x200x250 mm work area.
How il looks?

looks like a pretty solid machine
You could get more usable area out of it if you moved the upper gantry in the X/Y direction, and the bed in the Z.
@ThantiK
thnx for constructive critic, yes, you are right. This was afternoon CAD project and i have picked some XZ parts from thingi…ironic, now i have redesigned every part to be my design 