How does it sound when you take that cut? For a 3/16" 2 flute end mill I usually take it at 0.05" DOC and 5 IPM at 4300 RPM. That usually produces a nice finish as well as doesn't load the machine too heavily. You might be working over the motor too hard and it could be tripping out because of the heat. I'm also betting you won't get much life out of your cutters running at that speed - too much rubbing and not enough cutting going on. |