DIY CNC MILLING MACHINE DESIGN
2019-2020. It was my wish to have a self-built, powerfull, 3-axis CNC machine at home to carve foams, wood and soft metals. A unique feature in relation to similar machines is it's high Z-axis range of 110mm effectively.
The specs
A box-construction created of 20x20x1,5 mm steel members, joined by PA-GF30 corner pieces.
2x ⌀20mm hardened steel linear rails for X and Y, 4x ⌀8mm hardened steel for the Z-axis.
A 500W Bosch professional router. I upgraded to a digitally RPM controller, which can be controlled manually or by Gcode.
Actuated by T8 Lead screw, driven by 5.18:1 reduced NEMA17 Stepper motors. The Gcode is interpreted and processed by an Arduino and the GRBL firmware. The arduino has a DIY, plug-in DIY shield.
The build
I made several concepts in CAD, and the final prototype has had one major iteration.
Because of it's noise, the printer itself has a custom built sound-proof enclosure.
The development process
See how the CNC has developed over time
