Very Simple Hardware
A simple laser SCARA:
It uses 50mmx25mmx3mm aluminum bracket.
The main downsides are:
- direct drive (with micro-stepping)
- single motor axles
- canter-lever design.
Still it should be useful for testing.
Reworked the design
Reworked the design away from 50mm x 25mm 3mm aluminum angle.
Here is a 6mm MDF design:
And the laser cutout (300mmx300mmx6mm MDF sheet):
The bending moment calculations suggest less than 0.5mm deflection (assumes 2.5N end load). Maximum end load is 30N (~5mm deflection).
I sent the design away to be cut by a professional laser cutting company.