1. Forum
  3. Search

Advanced Search

Search Results (Searched for: )

  • Hakan
  • Hakan
21 Jun 2025 06:01 - 21 Jun 2025 06:01
Replied by Hakan on topic Do I need a better PC?

Do I need a better PC?

Category: EtherCAT

I have had this gravel sound. Starts by sounding like tick, tick gradually transitioning to gravel and going back to tick,tick and disappear.
Repeats itself after some minutes.
It may not be what causes it for you, but in my case it was a slight difference in the DC cycle time and linuxcnc cycle time.
One is running slightly faster than the other. Both nominally 1 millisec, Combined with some latency of the linuxcnc computer
ethercat will send and receive data not from the current servo cycle, but from the previous or the next cycle.
The gravel sound would appear with the transition over this mixed period to stabilize when the cycles are so much out of phase that they always receive data from the same servo cycle phase.

You can check with halscope of the actual position for example. When the gravel sound happens you will see that
the actual position isn't a smooth line anymore as is expected. Instead you will see that it stays on the same
position for a cycle, to maybe jump double distance another. This is worthwhile checking. 
Two curves in halscope, commanded position and actual position, with and without gravel sound would be interesting to see.
  • PCW
  • PCW's Avatar
21 Jun 2025 04:58
Replied by PCW on topic Using Mesa 7i95T for laser + galvo (xy2-100) control

Using Mesa 7i95T for laser + galvo (xy2-100) control

Category: Driver Boards

The TXEN pins corresponding GPIO pins would need to be set as outputs 
and into the correct state in the hal file, something like:

setp hm2_7i95.0.gpio.014.is_output true
setp hm2_7i95.0.gpio.014.out false
setp hm2_7i95.0.gpio.017.is_output true
setp hm2_7i95.0.gpio.017.out false
 
 
  • djdelorie
  • djdelorie
21 Jun 2025 04:19
Replied by djdelorie on topic M6 shuts off spindle, but no UI confirmation, and program doesn't pause

M6 shuts off spindle, but no UI confirmation, and program doesn't pause

Category: Basic Configuration

something to try - switch to relative moves, then G1 Z0 ? Even though you're not moving, it may count as a wait point for M3
Or use M66 instead? You could hook that up to a button near the spindle, or a GUI button.
  • tuxcnc
  • tuxcnc
21 Jun 2025 03:42 - 21 Jun 2025 09:23
Replied by tuxcnc on topic Remora - ethernet NVEM / EC300 / EC500 cnc board

Remora - ethernet NVEM / EC300 / EC500 cnc board

Category: Computers and Hardware

Maybe I some don't know...
Maybe I do something wrong...
But :
root@HP-15:/temp/temppp# ls -n remora*
-rw-r--r-- 1 0 0 24206 2024-12-19  remora-eth-3.0.c
-rw-r--r-- 1 0 0   894 2024-12-19  remora-eth-3.0.h
root@HP-15:/temp/temppp# md5sum remora*
b447865ec7d51854e3baae2c9649fc65  remora-eth-3.0.c
4d64b37ed9177dbdb67f64479a2985f5  remora-eth-3.0.h
root@HP-15:/temp/temppp# cat remora-eth-3.0.c | grep comp_id,
            comp_id, "%s.enable", prefix);
            comp_id, "%s.reset", prefix);
            comp_id, "%s.status", prefix);
                    comp_id, "%s.joint.%01d.pos-cmd", prefix, n);
                    comp_id, "%s.joint.%01d.vel-cmd", prefix, n);
                comp_id, "%s.joint.%01d.enable", prefix, n);
                comp_id, "%s.joint.%01d.pos-cmd", prefix, n);
                    comp_id, "%s.joint.%01d.vel-cmd", prefix, n);
                comp_id, "%s.joint.%01d.freq-cmd", prefix, n);
                comp_id, "%s.joint.%01d.pos-fb", prefix, n);
                comp_id, "%s.joint.%01d.scale", prefix, n);
                comp_id, "%s.joint.%01d.counts", prefix, n);
                comp_id, "%s.joint.%01d.pgain", prefix, n);
                comp_id, "%s.joint.%01d.ff1gain", prefix, n);
                comp_id, "%s.joint.%01d.deadband", prefix, n);
                comp_id, "%s.joint.%01d.maxaccel", prefix, n);
                comp_id, "%s.SP.%01d", prefix, n);
                comp_id, "%s.PV.%01d", prefix, n);
                comp_id, "%s.output.%02d", prefix, n);
                comp_id, "%s.input.%02d", prefix, n);
                comp_id, "%s.input.%02d.not", prefix, n);
                comp_id, "%s.NVMPGinput.%01d", prefix, n);
root@HP-15:/temp/temppp#
Is the PV raw count?
Is the index some input?
Where is position captured at index ?
Displaying 14926 - 14929 out of 14929 results.
  1. Forum
  3. Search
Time to create page: 0.627 seconds
Powered by Kunena Forum