Posted 16 October 2002 - 05:36 AM
Posted 16 October 2002 - 05:47 AM
Posted 04 April 2008 - 03:49 AM
DELTA RPM / PITCH / SERVO LAG CONSTANT = MCC
(NOTE: Z(1) "little one" is relative to tool tip.
I'm a little foggy on this one)
Posted 04 April 2008 - 06:23 AM
Posted 04 April 2008 - 07:27 AM
so how do calculate and do you comp the servo lag?
Posted 04 April 2008 - 07:56 AM
Posted 04 April 2008 - 08:28 AM
(loss of pitch at encoder when speed changes)
the idea is to be a little gentle on the ball screws. no other reason I can think of.
Posted 04 April 2008 - 08:53 AM
The first time I tried was on a 3 start thread and I forgot to chande the rpm the insert did not like that much.
Posted 04 April 2008 - 02:48 PM
I've done it, but it was like forever ago. The way I think I did it was to create a second threading op using a square face grooving or cutoff tool. The tool only ran the Z depth to blunt the first third of a revolution of thread which was in my case about .062. the key was to program the lead out with a .01 z component and a .1 X component this retracted the tool over where the actual thread is to begin. program it as threading so that you can easily cut the blunt in a number of passes so its clean.
Posted 04 April 2008 - 03:33 PM
seco tools had a program you could download for there thread mills that had the highbee option in it. worked well. have not used in years. i think its still on an old p3 computer.
Posted 04 April 2008 - 05:11 PM
when I have my notes in front of me I'll share for those interested and to save for search later in case I lose the thing.
Posted 04 April 2008 - 05:55 PM
suppose you could add it in manually. maybe it will be in X3?