Re: [Emc-users] multi-pass threading 5i20 problem "lathe"

2009-02-06 Thread Arnold Riter CNC
Chris Radek escribió: > On Mon, Feb 02, 2009 at 02:02:51AM +0100, Arnold Riter CNC wrote: > >> The threading are incorrect, so I've been looking to what can be wrong, >> and I find that the "motion.spindle-revs" not correspond with the reality. >> When there is only 1 to 5 revolution the value

Re: [Emc-users] multi-pass threading 5i20 problem "lathe"

2009-02-01 Thread Chris Radek
On Mon, Feb 02, 2009 at 02:02:51AM +0100, Arnold Riter CNC wrote: > > The threading are incorrect, so I've been looking to what can be wrong, > and I find that the "motion.spindle-revs" not correspond with the reality. > When there is only 1 to 5 revolution the value is almost correct, but > whe

Re: [Emc-users] multi-pass threading 5i20 problem "lathe"

2009-02-01 Thread Jeff Epler
If the encoder position in hal generally tracks the correct position but gets worse over multiple revolutions, I would look to problems outside the PC. For instance, if the problem is not present when you turn the spindle by hand, then it could be noise from the spindle motor coupled into the enco

[Emc-users] multi-pass threading 5i20 problem "lathe"

2009-02-01 Thread Arnold Riter CNC
Hi I've been trying to configure my lathe for threading and I think I'm missing something. I have the 5i20+7i33 mesa card + servos + 100 lines encoder attached to the spindle The threading are incorrect, so I've been looking to what can be wrong, and I find that the "motion.spindle-revs" not c