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  • jschulze
  • jschulze
29 Sep 2025 19:32
Replied by jschulze on topic Wrapped Rotary on Non Rotary Axis Letter.

Wrapped Rotary on Non Rotary Axis Letter.

Category: Basic Configuration

Looking for 'WRAPPED_ROTARY' in the source code seems to suggest that it indeed only applies to axes A,B,C:
~/git/linuxcnc-dev$ grep -rnw ./ -e WRAPPED_ROTARY
./configs/sim/axis/wrapped_rotary/wrapped_rotary.ini:85:WRAPPED_ROTARY = 1
./bin/axis:3516:a_axis_wrapped = inifile.find("AXIS_A", "WRAPPED_ROTARY")
./bin/axis:3517:b_axis_wrapped = inifile.find("AXIS_B", "WRAPPED_ROTARY")
./bin/axis:3518:c_axis_wrapped = inifile.find("AXIS_C", "WRAPPED_ROTARY")
./src/emc/rs274ngc/rs274ngc_pre.cc:872: inifile.Find(&_setup.a_axis_wrapped, "WRAPPED_ROTARY", "AXIS_A");
./src/emc/rs274ngc/rs274ngc_pre.cc:873: inifile.Find(&_setup.b_axis_wrapped, "WRAPPED_ROTARY", "AXIS_B");
./src/emc/rs274ngc/rs274ngc_pre.cc:874: inifile.Find(&_setup.c_axis_wrapped, "WRAPPED_ROTARY", "AXIS_C");
./src/emc/usr_intf/axis/scripts/axis.py:3514:a_axis_wrapped = inifile.find("AXIS_A", "WRAPPED_ROTARY")
./src/emc/usr_intf/axis/scripts/axis.py:3515:b_axis_wrapped = inifile.find("AXIS_B", "WRAPPED_ROTARY")
./src/emc/usr_intf/axis/scripts/axis.py:3516:c_axis_wrapped = inifile.find("AXIS_C", "WRAPPED_ROTARY")
./src/emc/usr_intf/gremlin/qt5_graphics.py:274: self.a_axis_wrapped = self.inifile.find("AXIS_A", "WRAPPED_ROTARY")
./src/emc/usr_intf/gremlin/qt5_graphics.py:275: self.b_axis_wrapped = self.inifile.find("AXIS_B", "WRAPPED_ROTARY")
./src/emc/usr_intf/gremlin/qt5_graphics.py:276: self.c_axis_wrapped = self.inifile.find("AXIS_C", "WRAPPED_ROTARY")
./src/emc/usr_intf/gremlin/gremlin.py:204: self.a_axis_wrapped = inifile.find("AXIS_A", "WRAPPED_ROTARY")
./src/emc/usr_intf/gremlin/gremlin.py:205: self.b_axis_wrapped = inifile.find("AXIS_B", "WRAPPED_ROTARY")
./src/emc/usr_intf/gremlin/gremlin.py:206: self.c_axis_wrapped = inifile.find("AXIS_C", "WRAPPED_ROTARY")
grep: ./src/objects/emc/rs274ngc/rs274ngc_pre.o: binary file matches
./docs/src/config/ini-config.adoc:902:* `WRAPPED_ROTARY = 1` - When this is set to 1 for an ANGULAR axis the axis will move 0-359.999 degrees.
grep: ./lib/librs274.so.0: binary file matches
./lib/python/qt5_graphics.py:274: self.a_axis_wrapped = self.inifile.find("AXIS_A", "WRAPPED_ROTARY")
./lib/python/qt5_graphics.py:275: self.b_axis_wrapped = self.inifile.find("AXIS_B", "WRAPPED_ROTARY")
./lib/python/qt5_graphics.py:276: self.c_axis_wrapped = self.inifile.find("AXIS_C", "WRAPPED_ROTARY")
./lib/python/gremlin.py:204: self.a_axis_wrapped = inifile.find("AXIS_A", "WRAPPED_ROTARY")
./lib/python/gremlin.py:205: self.b_axis_wrapped = inifile.find("AXIS_B", "WRAPPED_ROTARY")
./lib/python/gremlin.py:206: self.c_axis_wrapped = inifile.find("AXIS_C", "WRAPPED_ROTARY")
 

Thanks so much for checking.  I'll try to figure out a different solution.
  • LeonDolnicar
  • LeonDolnicar
29 Sep 2025 19:26
Stepper motors should hold position when error. was created by LeonDolnicar

Stepper motors should hold position when error.

Category: General LinuxCNC Questions

I am running a 3 axis CNC mill with stepper motors, through a 7i76eu card running linux CNC. Currently when one of the motor drivers gets a fault, the motor lose all power. This is problematic for the Z axis, which uses a stepper motor with a brake. When its driver gets a fault the brake is engaged, but there is a delay, in the meantime the z axis is in free fall for about 10cm. Is it possible to program the stepper drivers in such a way that when they get a fault they stop the motors and hold the position.

Thank you for all the answer and suggestions in advance.
  • tommylight
  • tommylight's Avatar
29 Sep 2025 19:03
Replied by tommylight on topic Issues THC.

Issues THC.

Category: Plasmac

Yes it is, but that also depends on a lot of other external conditions, like current set, air supply and pressure and moisture in it, nozzle size and type, feed rate, material composition, etc etc, so any of change and the cutting result will change, most of the time not noticeably but sometimes very noticeably.
If you have an older plasma source with a big transformer, that will also vary with the input voltage and spikes and drops in the line ripple.
As a general rule:
-thinner material or faster feed rate = more P
-thicker material or slower feed rate = less P
-
On most of my machines i have it set at 7 and never change as they do mostly cut the same 2-3mm material all day long but sometimes they do cut 6-10mm thick so it works fine for both materials as the wavy cut is not very noticeable on thin material.
  • endian
  • endian's Avatar
29 Sep 2025 18:59
Replied by endian on topic Beckhoff AX5YZZ internal probing

Beckhoff AX5YZZ internal probing

Category: EtherCAT

Solved 

config below 
  • paulsao1
  • paulsao1
29 Sep 2025 18:46
Replied by paulsao1 on topic Issues THC.

Issues THC.

Category: Plasmac

Thanks a lot, Tommy, for your help. With P=5, I got this result, and it seems to be correct again. But why? Should the PID be robust enough to handle the physical changes that can occur in the system? Or not? 
  • tommylight
  • tommylight's Avatar
29 Sep 2025 18:27
Replied by tommylight on topic Issues THC.

Issues THC.

Category: Plasmac

Try P=5 and post picture.
Also, watch the voltage on screen, does it fluctuate a lot? +-10V is OK, even a bit more is still OK, but 50V difference is not OK and might be interference or loose contacts on the plasma side.
  • paulsao1
  • paulsao1
29 Sep 2025 18:08
Issues THC. was created by paulsao1

Issues THC.

Category: Plasmac

Greetings everyone!!!
I've been using Qtplasmac for over 3 years without any problems, but 2 days ago I had a problem with the THC. I'm attaching a photo. It seems to be out of control when exiting or entering a corner at high speed. This is the first time this has happened to me. It could be something to do with the PID tuning; the normal values ​​are P=10, which is always used.
 
  • Aciera
  • Aciera's Avatar
29 Sep 2025 17:37 - 29 Sep 2025 17:39
Replied by Aciera on topic Wrapped Rotary on Non Rotary Axis Letter.

Wrapped Rotary on Non Rotary Axis Letter.

Category: Basic Configuration

Looking for 'WRAPPED_ROTARY' in the source code seems to suggest that it indeed only applies to axes A,B,C:
~/git/linuxcnc-dev$ grep -rnw ./ -e WRAPPED_ROTARY
./configs/sim/axis/wrapped_rotary/wrapped_rotary.ini:85:WRAPPED_ROTARY = 1
./bin/axis:3516:a_axis_wrapped = inifile.find("AXIS_A", "WRAPPED_ROTARY")
./bin/axis:3517:b_axis_wrapped = inifile.find("AXIS_B", "WRAPPED_ROTARY")
./bin/axis:3518:c_axis_wrapped = inifile.find("AXIS_C", "WRAPPED_ROTARY")
./src/emc/rs274ngc/rs274ngc_pre.cc:872: inifile.Find(&_setup.a_axis_wrapped, "WRAPPED_ROTARY", "AXIS_A");
./src/emc/rs274ngc/rs274ngc_pre.cc:873: inifile.Find(&_setup.b_axis_wrapped, "WRAPPED_ROTARY", "AXIS_B");
./src/emc/rs274ngc/rs274ngc_pre.cc:874: inifile.Find(&_setup.c_axis_wrapped, "WRAPPED_ROTARY", "AXIS_C");
./src/emc/usr_intf/axis/scripts/axis.py:3514:a_axis_wrapped = inifile.find("AXIS_A", "WRAPPED_ROTARY")
./src/emc/usr_intf/axis/scripts/axis.py:3515:b_axis_wrapped = inifile.find("AXIS_B", "WRAPPED_ROTARY")
./src/emc/usr_intf/axis/scripts/axis.py:3516:c_axis_wrapped = inifile.find("AXIS_C", "WRAPPED_ROTARY")
./src/emc/usr_intf/gremlin/qt5_graphics.py:274: self.a_axis_wrapped = self.inifile.find("AXIS_A", "WRAPPED_ROTARY")
./src/emc/usr_intf/gremlin/qt5_graphics.py:275: self.b_axis_wrapped = self.inifile.find("AXIS_B", "WRAPPED_ROTARY")
./src/emc/usr_intf/gremlin/qt5_graphics.py:276: self.c_axis_wrapped = self.inifile.find("AXIS_C", "WRAPPED_ROTARY")
./src/emc/usr_intf/gremlin/gremlin.py:204: self.a_axis_wrapped = inifile.find("AXIS_A", "WRAPPED_ROTARY")
./src/emc/usr_intf/gremlin/gremlin.py:205: self.b_axis_wrapped = inifile.find("AXIS_B", "WRAPPED_ROTARY")
./src/emc/usr_intf/gremlin/gremlin.py:206: self.c_axis_wrapped = inifile.find("AXIS_C", "WRAPPED_ROTARY")
grep: ./src/objects/emc/rs274ngc/rs274ngc_pre.o: binary file matches
./docs/src/config/ini-config.adoc:902:* `WRAPPED_ROTARY = 1` - When this is set to 1 for an ANGULAR axis the axis will move 0-359.999 degrees.
grep: ./lib/librs274.so.0: binary file matches
./lib/python/qt5_graphics.py:274: self.a_axis_wrapped = self.inifile.find("AXIS_A", "WRAPPED_ROTARY")
./lib/python/qt5_graphics.py:275: self.b_axis_wrapped = self.inifile.find("AXIS_B", "WRAPPED_ROTARY")
./lib/python/qt5_graphics.py:276: self.c_axis_wrapped = self.inifile.find("AXIS_C", "WRAPPED_ROTARY")
./lib/python/gremlin.py:204: self.a_axis_wrapped = inifile.find("AXIS_A", "WRAPPED_ROTARY")
./lib/python/gremlin.py:205: self.b_axis_wrapped = inifile.find("AXIS_B", "WRAPPED_ROTARY")
./lib/python/gremlin.py:206: self.c_axis_wrapped = inifile.find("AXIS_C", "WRAPPED_ROTARY")
 
  • ArcAiN6
  • ArcAiN6's Avatar
29 Sep 2025 16:52
Replied by ArcAiN6 on topic Looking for a specific, detailed howto guide for XYYZ gantry setup

Looking for a specific, detailed howto guide for XYYZ gantry setup

Category: Advanced Configuration

as i've stated. it only tries to home 1 of the two motors
  • jschulze
  • jschulze
29 Sep 2025 16:34
Replied by jschulze on topic Wrapped Rotary on Non Rotary Axis Letter.

Wrapped Rotary on Non Rotary Axis Letter.

Category: Basic Configuration

Does the letter matter?

Isn't it just a visual ID?

Not sure.  Either way it's not working for me and I'm not sure why.  It works no problem as a rotary axis, but I'd like to figure out a way to keep position while using it as a spindle and I figure that will be easier if it wraps at 360.  
  • GDTH
  • GDTH's Avatar
29 Sep 2025 15:56
Replied by GDTH on topic Carousel with counts move x amount of pockets

Carousel with counts move x amount of pockets

Category: Advanced Configuration

setp carousel1.0.scale 2000
setp carousel1.0.width 200
setp carousel1.0.home-offset 800
setp carousel1.0.debounce 3
  • tommylight
  • tommylight's Avatar
29 Sep 2025 15:50
Replied by tommylight on topic Extremely confused - Nonworking limit switches

Extremely confused - Nonworking limit switches

Category: General LinuxCNC Questions

No worries, we all miss things and mess up.
Thank you for helping.
  • jjdege
  • jjdege's Avatar
29 Sep 2025 15:23
Replied by jjdege on topic Extremely confused - Nonworking limit switches

Extremely confused - Nonworking limit switches

Category: General LinuxCNC Questions

I'm sorry, I missed it :-(
  • tommylight
  • tommylight's Avatar
29 Sep 2025 15:12
Replied by tommylight on topic Extremely confused - Nonworking limit switches

Extremely confused - Nonworking limit switches

Category: General LinuxCNC Questions

Sorry, there are no pins connected to the Mesa IOs.

Yes there is a pin, it is way up in his hal file
# --- MIN-HOME-X ---
net min-home-x     <=  hm2_7i96s.0.inm.00.input-00-not
  • jjdege
  • jjdege's Avatar
29 Sep 2025 13:55
Replied by jjdege on topic Extremely confused - Nonworking limit switches

Extremely confused - Nonworking limit switches

Category: General LinuxCNC Questions

Sorry, there are no pins connected to the Mesa IOs.
net min-home-x     =>  joint.0.home-sw-in
net min-home-x     =>  joint.0.neg-lim-sw-in
net x-pos-limit     =>  joint.0.pos-lim-sw-in
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