Machine
Humphrey - Large format CNC mill
Create GCODE for milling job
Prepare machine
- Place workpiece on sacrificial layer
- Click home button next to computer > machine moves to home
- Enter the home coordinates
G92 X642 Y35(type in control software command field) - Insert milling bit
- Turn on spindle
m3 - Use jog buttons to move down Z in small steps until you hear tool touching working piece
- Set Z to zero
- Move up Z
- Turn off spindle
m5
WARNING: Make sure workpiece lies flat on sacrificial layer. If it's bent the mill might catch it while making travel moves
Settings for aluminium
- DOC
0.1 mm - feed rate
16 mm/s - Tool:
2 mm diameter, 4 flutes
These settings worked but I’m sure they could be tweaked to go faster.