I've cut all'y with the cnc router, trick is as low rpm as you can go and shallow passess. I have a Industrial mill at home as well and it turns at about 600rpm, when you go faster the flutes tend to gum up by the ally melting and not clearing properly. If you run a stream of coolant on the mill you can cut depths of about 13mm per pass, without coolant about 4mm per pass. On the router about .5mm per pass with wd40 as lube.
So Low speed, Shallow passes and lube is your answer
Steve |