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langdons, sometimes it is better not to answer. It should be obvious from the post that this is an ethercat machine.

I don't see anything obvious wrong in the setup.
8000 is a lot, 8000 steps or ticks or whatever per mm but that is probably right since it moves right.
What you can do to debug this is to use "halshow" and look at all pins in the chain from joint.0.motor-pos-cmd to the cia402 pin, to the driver pin, and the return from the driver pin, to the cia402 pins, to joint.0.motor-pos-fb pin.

Deleted.

You would need a stiffer pullup so you get more than 12V at the 7I76E input

I would suggest 2.2K 1/2W

You could also use two separate inputs and an OR or MUX component
(the MUX component has the advantage of ignoring the other input
when not in use, but requires a signal to select which input shouls be active)

Thanks for the input. The softlimit not working with joint limits just with axis limits is sad :(I tried to include to millturn limit changer but LCNC reports: Unknown M code used. I assume somethings not right in the .ini ? Also is it possible to change the key binding dependent on TWP is active or not?

Also: How can a custom component can be executed from a custom M-Code? Background is, that a custom g code or m code is needed to rotate and lock the tool spindle. I feel comfortable creating my own component, but how to execute it from within m code i don't know.

Thank you and kind regards,
Jochen
 

Sometimes LinuxCNC acts up.

It only happened to me maybe twice, but restarting the PC fixed it.

Is it intermittent?

You mean if you home the axes and then run a program, then jog them to home, they don't reach home?

Are the axes driven by leadscrews?

Are these stepper motors?

SIDE NOTE:
My machine had measurement errors, it turned out that the axes were actually in mm not inches.

20" and 500mm are actually pretty close.

Good to hear you have a GPU.

You can connect the PC to a wireless router via ethernet and then connect the camera the same router wirelessly.

The PC and camera can communicate via the router without any Wi-Fi card in the PC.


Why not use the desktop for streaming?

I my experience, it is often better to just avoid a problem by going a different route than to actually fix the problem itself.

Hello again!
My next problem to get my machine running (it's running but not as precise as I want it) has to do with two switches.
My tool length sensor is a quite normal mechanical switch, that is NC and put +24V into input-08-not. That's working perfectly.
If I put my 3d Sensor (NPN-NO) into the line as the picture shows, nothing works. The 10k resistor (R1) before the Tool length switch puts the voltage down to 12.xVolts, the Input-08-not is set to "probing" permanently.
The 3D Sensor does nothing at all, not even the LEDs are active (the output is an open collector, I presume). What about diodes?
 

So, my next thought is to disconnect the two sensors from each other and use another Input of my MEsa 7i76e just for the 3D Sensor. This input should not be inverted for correct funktion. How can I do this with or without using an OR2 funktion?
My lines for the tool length are as follows

#---PROBE-IN ---
net probe-in     <=  hm2_7i76e.0.7i76.0.0.input-08-not    
net probe-in     =>  motion.probe-input

AFAIK, I cannot just net another input to motion.probe-input. But how could a OR2 look like?

Thanks for your help, again!
Hanno
 

If Step/Dir resistor networks or driver chips are being damaged
it means a voltage considerably outside the 0 to 5V range is being
applied to the Step/Dir pins.

First thing I would check is drive grounding and Step/Dir wiring
Routing step/dir lines parallel to servo motor wiring might also
cause enough EMI to damage the drivers.

An intermittent short to 24V wiring is another possibility.

I did push some work to fix an error I found.

A while ago, my MESA 7i76E broke; one channel just stopped working. I wrote about that here . I then found someone who repaired the card, after which the machine ran fine for half a year. He said he "replaced the resistor network" of the channel.

Today, the exact same issue appeared again. Joint 2 stopped working and after a restart it worked for a minute and went away again. This is exactly the behavior I saw last time.

This time though I was better prepared and had a spare 7i76E ready to replace the other one. After replacing it the machine ran fine - but after an hour the new card displays the same behavior, too! Clearly something is going on that breaks this channel... sometimes.

What would you do to diagnose this? Replace the JMC servo (with the built in controller) and hope for the best?

I remembered there is a wifi PCIe card (different brand) in my desktop which won't be missed. I put it in the CNC computer and now it all works.
I also did a latency test. This is with 5 glxgears plus YouTube running a psychedelic video, plus streaming from my RPi camera. Pretty much the same as I had back in March.

In addition to my machine config described in the first post, my graphics card is a Radeon Firepro V5800. 

Thanks for the comments,
Steve

Can you give more detail of the load problem?
I'm guessing you want it to autoload at startup?

set_style is old code from a slightly different version.
IIRC if you use it then you can't override the style with the style editor.

Here are some of the things you can change from the style sheet editor:

I think it needs a way to change styles per macro as it's hard to get sizes to work with different macros.
If there is interest I can develop it more.

Check the "accessories" submenu for LinuxCNC stuff, sometimes they end up there.

Mesa is definitely the way to go. It "future proofs" your setup. Swapping machines is easy, latency is less of an issue. If your current machine goes "poof" getting back & running is a simple task.

Tho it really depends on your budget....shipping to the Southern Hemisphere is brutal.

The easiest way, to prevent a total rewire is grab a 7i92T and that can plug into your existing parallel port breakout boards (or more correctly the breakout boards cab plug into the 7i92T). That'll get you going, later if you really feel the need a 7i76 can be plugged into the 7i92T.

I'm running a 7i92,7i76, another card for extra Smart Serial ports an analog smart serial card for the spindle and a 7i73 for the pendant.......Hasn't missed a beat in all the years I've been using them. Worked fine on the dual core J3355B system I used for a bit. Asrock J3355B-ITX. Upgraded to a system with a smaller foot print

Regarding isolating cores, from the dark spells I've read it would seem to isolate the cores on the same die, well that was the recommendations for Intel.