Need Help!- SPINDLE WARMUP

[CNC_BOB]

hey guys,
we have a 2002 VM5 mill with BIG PLUS spindle, I am wondering if I realy need to go thru the full warmup program even is the job I am running only has requirements for 4000 RPM tooling? any hints on this would be greatly appreciated
thanks

[chippy1]

Simply put, try cutting without the warmup and check your accuracy on the part. What your trying to avoid is expansion or growth from the bearings and head.

Regards,

Chippy

[CNC_BOB]

thanks for getting back on this but when I boot the machine, I get an alarm which says WARMUP INCOMPLETE. I accidentally cleared the alarm one day many weeks ago and started running a program. That is when I wondered how necessary it really is to run it if I am running below 10,000 RPM ?

[chippy1]

I would imagine that the alarm is just a safety alarm. As you say, you can clear it. The alarm can probably be turned off by some bit selection in the PLC. If they put this in there I would do it as a safety precaution. Spindle heads are not cheap these days.

Regards,

Chippy

[Mitsman]

Normally we never ran the spindle warm-up for jobs that ran under 6000RPM on OKKs.