Need Help!- haas tm-1

[hoff]

I want to increase the feeds and rapids on my tm-1
What all do i have to change?


I already increased the spindle rpm to 6000. how fast can I go with the rapids?


Also I own 2 7500 rpm gear box mills . Can i increase the rpm to 10000 without hurting the machines?

ready to hot rod all of them
Joel

[pit202]

max for the servos is 18m/min , but the lubrication is more limiting greas is throwing away at high speeds you get mess around covers.

[Donkey Hotey]

I don't have personal knowledge of how the TM series is lubricated but isn't the spindle also grease lubricated? If that's the case, I'd say that the bearings ain't gonna' last long at 6K. I don't think the 4K spindle limit is some evil plan by Haas to keep you from high RPM.

[DSL PWR]

Originally Posted by Donkey Hotey I don't have personal knowledge of how the TM series is lubricated but isn't the spindle also grease lubricated? If that's the case, I'd say that the bearings ain't gonna' last long at 6K. I don't think the 4K spindle limit is some evil plan by Haas to keep you from high RPM.

All the drives and the spindle on the TM-1 are the same as the TM-1P. Haas just limited the rapids, and spindle speed to conform to some safety specs put in place by various governments.

[Donkey Hotey]

Do we know that for a fact (same part numbers on the spindles, etc)? I'm not saying you're wrong.

But if that's true on the TM-1, it might also be true on the TL-1. And I could use some extra RPM when turning small aluminum parts in a collet.

[Ken_Shea]

Doubtful we will see any Haas stamp of approval on this modification, but some have reported running several years (by now) with out any issues, and several Haas people have said that the TM-1 - TM-2 and the std Mini-Mill are in fact the same spindle. 6000 RPM is just not a problem that I can tell, effortless, smooth and still runs quiet (in my opinion). As DSl Power mentioned, it was safety factors not mechanical factors that seems to have set up these limits.

The Haas guy that set mine up said they are rated to 600 IPM and that because of the open design (TM-1 and TM-2) it was limited to 200ipm which mine still runs at as I was more interested in RPM. I have seen instruction on the CNCZone telling how the feeds were increased but would have to to a search as I do not recall where.

Spindle Bearings are pre-lubed, for life, what ever that means


Ken

[jwknow]

How did you increase to 6000 rpm? If this is not going to hurt the mill, I could use the extra rpm on some small aluminum parts myself.

JW

[Ken_Shea]

JW,
Here is a link
http://www.cnczone.com/forums/showth...Emergency+stop

Post 17 shows a step by step procedure.

As Donkey Hotey is pointing out, there can be some risk, but at this point I am comfortable enough with it to leave it at the 6000 RPM max. I really do not have enough hours at the 6000 rpm limit to offer any real personal substantiation of it not causing damage.


EDIT:
DSL Power seems to have made the IPM increase, hopefully he will help some in the how it is done, likely will do the same to mine.




Ken

[smittys800]

As Hoff has already mentioned, looking for faster rapids, and the instructions as far as I can tell, only cover the spindle speeds. I have been running 6k for about 9 months now and no problems, just looking for more rapid speeds.
I got spoiled working with PBMY for a bit, now those machines flat out FLY!!
Smitty

[DSL PWR]

Originally Posted by Ken_Shea EDIT: DSL Power seems to have made the IPM increase, hopefully he will help some in the how it is done, likely will do the same to mine. Ken

I've only done the spindle. I think this is the thread for rapids.

http://www.cnczone.com/forums/showth...=spindle+speed

[AMCTony]

Originally Posted by pit202 max for the servos is 18m/min , but the lubrication is more limiting greas is throwing away at high speeds you get mess around covers.

18m/min. Am I correct in converting this to Inches as this being 708 Inches per Min? Am I also correct in assuming that this is on a TM-1? If this is true then this little machine has a bit more capabilities that I previously expected.

[pit202]

yes , tm-1 have the same inverters like minimill and/or small vf , same servos like minimill and a little smaller ( in power ) like VF`s , the same ( in pitch ) screws , just look at you servos, my ( 2005 ) have 1500 nominal RPM`s and VF3 too , you can peak them 2 times, just calculate : 1500rpm * 2peak * 6mm ( pitch ) = 18m/min ? the bigest difference betwean vf and tm are that the tm are cheaper buld in mechanic.