OVERVIEW
Built a fully functional mini-CNC machine using aluminum extrusion, stepper motors, a 10k rpm spindle motor, and an open-source GRBL control board for less than $200 total.
TECHNICAL DETAILS
Frame
Aluminum Extrusion
Controller
GRBL (Open Source)
Spindle
10,000 RPM Motor
Total Cost
< $200
SOFTWARE WORKFLOW
01
KiCAD
Design PCB and plot GERBER files for the circuit board layout.
02
FlatCAM
Convert GERBER files to CAM (Computer-Aided Manufacturing) toolpaths.
03
bCNC
Open-source CNC control software with autolevel function for heightmaps and even milling on uneven copper-clad boards.