Testing the TAS on the Tormach 770

In this video I test the TAS from Lakeshore Carbide on my Tormach 770.

Please direct all correspondence to:

Craig's Machine Shop
2753 E. Broadway Rd Ste. 101-PMB416
Mesa, Az 85204-1570

[gusbisbal]

Those sparks/chips at 2:44 was steel. the second I saw that I knew you have just HSMed your vice. My condolences Craig. Thank you for the test.

[CNCXR]

Ouch! Hate it when that happens especially when you spent a lot of time machining a part just to have to toss it, and the End Mill. My Condolences.

[cbaesemanai]

I have never had a end mill pull out of the spindle. I have seized one once when I crashed the machine. Had I kept using that particular collet it would have had pullout at some point since I ended up galling it a bit during the crash. Double check your drawbar and remove that collet and make sure it is clean and in good condition.

[EZ_shop]

Cool test Craig. I was wandering how you got the aluminum to spark, then I saw the gouge in the jaw. Ouch! They should still be good though.

[kentvandervelden]

Another very interesting video. Mills are sooo expensive compared to lathes because of all the tools that eventually are needed. Regarding the pullout, was the drawbar was torqued to spec and we witnessed the limit of the TTS holding power? I have TAS endmills but have yet to try them. I'm not so interested in maximum removal, but what's most appealing is easier cleanup of little chips from the TAS compared to long chips. Best wishes

[MrFastFarmer]

Mate that would piss me off. You can stick you Tormach TTS system!

[multiHappyHacker]

hehe I had a similar experience and a slot cut into my hardened vise jaw on my 1100 with a 3 flute 3/8" corner radius end-mill in aluminum on my 1100. I tightened up the drawbar a little more, just so you might need to wiggle the tool to break the sticktion on the taper to pull it out with the power drawbar button pressed, a tighter fit. Haven't had a TTS holder pull out and I can easily bog the spindle down without worrying. When the spindle bogs just make sure you have good coolant flow to the endmill and it will usually pull through it. Hitting it with coolant from 3 sides would be great for those passes around the far side.

I've noticed after a few parts being ran the SGS brand tool I'm using has dulled up a little from the factory new condition, but I have done some stupid stuff with it in aluminum and it's practically indestructible. 0.060" corner radius!

[sparksflyingpyro]

Some of the older r8 collets from tormach had issues with 1/2 mills pulling out of the r8 because of burrs on the r8, call tormach and they will send a replacement r8 and the problem will go away

[SamiRahman]

So i had the same problem, the TTS slips with the TAS, the bigger the TAS diameter and DOC, the more it pulls down. i had to really crank on my drawbar nut, i.e. tighten just enough so the TTS just falls out, 1/8 of a turn more and the TTS sticks, like that level tight. i lost more then one TAS figuring that out. even now i take lighter cuts with the bigger TAS, well frankly all of them just as a precaution