Originally Posted by
haastec
I respectfully disagree. You can have thermal expansion affecting accuracy, therefore, a good warm up program can help minimize this.
Ohhhh, I have to disagree with you. No heat what-so-ever will be generated with a "Warmup" program in X, Y, or Z. If you ran it a 100% rapids for several hours, maybe, but why do that then run parts when it will cool down from there. Just excessive wear and tear. Just have a ballscrew failure under warranty and then tell Haas that you ran a warm-up program for two hours each morning at full rapids over the full range to the machine. I would hate to hear what they would say to that.
Spindles are where heat is generated for almost all machines. The heat will affect lathes farm more than mills, just because the spindle are larger etc.
A so called warm up program for the ways on a mill will do nothing but spread lubrication and that should be done by running the program anyway.
Sorry!
Mike
Two Haas VF-2's, Haas HA5C, Haas HRT-9, Hardinge CHNC 1, Bother HS-300 Wire EDM, BobCAD V23, BobCAD V28