All of a sudden, we have two projects that require us to CNC aluminum.
We managed to make it work with the regular 2-fluted 1/8 inch bit. It cut pretty easily with the settings:
- Bit: 2-flute straight, 1/8 inch
- Feed Rate: 254 mm/min
- Plunge Rate: 76.2 mm/min
- Depth per Pass: 0.2 mm
Of note: For the very thin material we tried (0.8 mm thick), I found that instead of using regular tabs, where the machine cuts through most of the material and just leaves a thin tab holding the cut-out pieces in place, just leaving gaps in the design seemed a better option. We have a slight tilt to our surfacing table and it was just way too easy to cut through the entire place where the tab should have been.