Hello everyone,

I need some help I,m fairly new to machining with CNC mills. Right now i'm using a Tormach 1100 with HSMadvisor.
Now today I was trying to make a finishing pass with a .25 dia, 1.56 stick out and .375 shank 3 Flute HSS.
I tried multiple passes and NOTHING was working. I was trying to .125 DOC, .01 WOC and at 2100 Rpm with feed 18, 12.5, 27. Then again with a .1888 DOC .025 WOC at 3820 Rpms, 11.5 Feed .001 Chip load, same cut 3820 rpm at 23 .002 Chip load,1740 Rpm 15.5 Feed .00297 Chip load, 1530 RPM 13.5 Feed Chip load .00297. so I'm at a lose of what i need to do to get rid of the chatter.