>> setp encoder.0.counter-mode true >> setp encoder.0.x4-mode false > > Does your encoder have quadrature (two 50 ppr channels)? This mode only > uses one, and gives you 50 counts per rev, using quadrature can give you > 200 counts per rev, which should be smoother.
The encoder is a single channel and will give only 50ppr. >> net spindle-index-enable motion.spindle-index-enable <=> >> encoder.0.index-enable >> net spindle-pos encoder.0.position => motion.spindle-revs > > This signal is in revolutions, and is used for G33 (threading) as well > as for the G76 threading canned cycle, and rigid tapping. > >> net spindle-velocity <= encoder.0.velocity => motion.spindle-speed-in > > This signal is in revs per second, and is used for G95 (feed per > revolution). It is NOT used for threading. > > > Regarding the "runs full speed" at higher pitches - you need to do the > math to make sure you aren't asking the impossible. For example, if > your spindle speed is 1000 RPM, and you command a pitch if 0.2mm, the Z > axis will have to move at 1000 X 0.2 = 200mm/minute to cut that thread. > If your Z axis can't do that, it will go as fast as it can, and > changing the pitch to a higher value like 0.3 won't make it go any faster. > > What are the velocity and accel limits for your Z axis? What spindle > speed are you using for the test? For the Z, velocity is 4 (guess 4mm/sec) and accelleration is 3. I tested with a spindle speed of approx 120rpm. With the G33 Z10 K.2, this would be 0.2 * 120/60 = 0.4 mm/sec if my calculation is correct and I assume this should be no problem. ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
