[mathewepperson]

What is the diameter of the drill bit and what speed is the spindle turning? How long are the flutes on the drill bit?

- Andrew

im running 525 rpm. anything above that just makes a bad sound and i dont really like it. and the drill is 17/32

and flutes are 6 1/5.

[Machineit]

I don't know if you are doing production or just drilling a few holes. Do you have coolant on it. Sorry, I'm not used to TM mills, always had VF's.

But, if you are just drilling a few holes, program it with a G83 with shorter pecks and higher feeds to help clear chips. Your drill should not slip. Was that in the holder?

Say, G83 Z-????? R.1 Q.03 F10. Up your RPM a little if you can. Don't know your machine. You might consider drilling a pilot hole of about 3/8" to save power on the 17/32nds drill.

Again, don't go slow or you will seize up the drill or load it up with chips.

Good luck learning.

Mike

[mathewepperson]

I don't know if you are doing production or just drilling a few holes. Do you have coolant on it. Sorry, I'm not used to TM mills, always had VF's.

But, if you are just drilling a few holes, program it with a G83 with shorter pecks and higher feeds to help clear chips. Your drill should not slip. Was that in the holder?

Say, G83 Z-????? R.1 Q.03 F10. Up your RPM a little if you can. Don't know your machine. You might consider drilling a pilot hole of about 3/8" to save power on the 17/32nds drill.

Again, don't go slow or you will seize up the drill or load it up with chips.

Good luck learning.

Mike

was running coolant in a drill chucks, but i turned down the end of the drill to .5 and going to try using it in a 1/2" end mill holder. seems like it doesnt have as much wobble doing it that way too.
not really production just running 4 parts with 4 holes each in them along with other things to it. but ill try using small pecks with higher feeds. going to be a little slower but as long as it gets done then ill be happy

[mathewepperson]

ill also try step drilling with a .25 drill since i already have to do it with 2 holes. i know drills are designed for upward chip evacuation but u think that will allow them to fall through the bottom aswell?