Originally Posted by
Tigster
So interesting update. I ran it with only 2 inserts...only marginally better...not really enough to make it mentionable. HOWEVER, I ran it on my PM727m and it did well. I am back to wondering if there is some play in the Z gibs. Perhaps the cut is just forcing head up/back and every so often the carbide bites pulling it into the cut from play in head. I expected similar results with my manual mill, but it was nothing like it. I cannot get the DOC the carbide wants, if I do, the motor about stalls. I even wonder if the motor has some sort of issue. At points it would slow so much, I don't know how something didn't pop, then I slow feed and it continued along its merry way of rubbing the hell out of my part. SOMETHING isn't right, but right now I'm not sure where to start to problem solve. Motor (how) Z gibs...I'll have to research the manual.
Nice blue curly chips from my PM727, black dust from 440.