I really liked Perinski's Microscope Stand, but I wanted a stand that use a door blocker as base, uses 8mm aluminium rod, and with a more rigid bracket for axles assembly.
I completly redraw from scratch the Perinski's design to fit my needs (except for the microscope bracket hook: I just add some screw holes to it).
STEP files are included.
All parts can be printed without support.
A bit of filing may be required, depending of your 3d printer tolerance.