TM1 warm-up philosophy

[John Morton]

I'm mulling over the 6000 rpm conversion, and thought it would be good if I understood the warm-up process better. Ken Shea's instructions end by saying, "the spindle should be warmed up, increased over time to 6000 rpm, then run in at that rpm for an hour or two I have heard, and that does make sense." (post #17 here: HAAS Tm1)

Does he mean to say that the stock warm-up program (2020 I think) is not sufficient? Why would I want to run the machine flat out for 1-2 hrs.? Surely he doesn't do that every day!

I want 6K for occasional wood routing and engraving jobs. Is there a reason I should do more than the usual recommendation - run 2020 if it hasn't run for 4 days?
thanks, John

[Ken_Shea]

Hi John,

he spindle was just run at 6000 for a longer time when the change was first made.

Normal spindile warm up runs at increasing RPM's for a couple minutes including up to the 6000, the warm up may be stopped prematurally at a lower RPM if I will not be going that high during the machining.

If the temperature is warm I may not run the spindle warm up at all if only for a couple days.

I guess better safe then sorry would be in play here.


Ken

[Geof]

Running Warm Up (2020) and Run In (2021) have been covered extensively in these threads both for the grease lubricated spindles and air/oil lubricated spindles.

4000-6000rpm Spindle Run In.

Spindle is dripping a small amount of oil.

Spindle Hot To Touch

[John Morton]

Thanks, that is interesting reading. I think my plan will be to monitor the spindle nose temperature with my hand. It seems that any problems should show up there.

The pattern of speeds and override settings in 2020 is mysterious to me, but I hope to ward off trouble by being attentive.
John