What's the resolution of your spindle encoder and base period servo period?Sent
from my Samsung S10
-------- Original message --------From: Jon Elson <el...@pico-systems.com>
Date: 2021-02-05 10:56 a.m. (GMT-08:00) To: "Enhanced Machine Controller
(EMC)" <emc-users@lists.sourceforge.net> Subject: Re: [Emc-users] Spindle speed
changes with threading. On 02/05/2021 10:07 AM, Gene Heskett wrote:>> You have
my curiosity bump itching Jon, When I get my stuff back together> on the GO704,
and get my new 'scope unpacked, I'll take a look at the> step drive output and
answer that itch.You actually should be able to check this out with Halscope.
Look at the velocity or step ratefor the Z axis, and trigger on
spindle.0.index-enable or whatever it is called on your LinuxCNC version. If
what I said was right, velocity should go higher than the required Z feedrate
fora moment right after the spindle encoder gets the index pulse, and then
settle down to the required feedrate for that thread pitch.Love that rigid
tapping! I just did 160 holes, with a spot drilling step, then a drill through
step, and finally tapping some 6-32 and 2-56 holes. It is kind of scary
watching a 6-32 tap plunge in at1000 RPM and 32 IPM feedrate. Taps the hole in
barely a second!Jon_______________________________________________Emc-users
mailing
listEmc-users@lists.sourceforge.nethttps://lists.sourceforge.net/lists/listinfo/emc-users
_______________________________________________
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users
