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How about this:
g53 g0 z#5183
g30

Wait_complete monitors linuxcnc status for the current message serial number.
It only checks if the current serial number is _past_ the commanded message serial number.

My educated guess is that since adjusting the maxvelocity sends more commands, the serial number gets changed and the check passes, even though it's the max velocity not the MDI that finished.

Using MDI programmatically is very difficult.

Nothing to worry about. The embedded window process is not perfect.

It's available in python as attribute 'settings'.
linuxcnc.org/docs/devel/html/config/pyth...xcnc_stat_attributes

You can also see it by using linuxcnc status program.

I think a line should be added to the bin file. How can I do this? 

Awesome. Those optocouplers are pretty cool, especially if you’re bad at wiring.
Thanks for the quick responses.
At least I know i didn’t break it, even if it doesn’t work.

Greetings, I like your tapping G code generator, we are looking at purchasing a cnc machine to do electrical panel backplates and I am looking at your G code generator. a couple of questions:
does it only run in linux, and if so, what linux software do you use, and also can you run linux on a virtual machine to make it work, and once completed, can you download into the cnc machine. Thank you for assistance - Bruce

Here's a pic!

So as far as I can tell there is a few ways to zero out a c axis that can be disengaged. 
1, engage the axis drive then drive the spindle around till the spindle reaches its encoders 'z' point.
2, engage the axis drive then re-zero the c axis (it has a prox) then reading both the spindle position and the current position adjust the c axis position. - the c axis position could be set on startup. 
3, stuff around and get spindle alignment working (m19) - this is no easy task using modbus for spindle drive.  Then drive both to a point where the gears mesh.

What are some solutions people out there have used?

If you post your hal and ini files, I can take a look.

Thanks
I think I know where I have gone wrong.

I was working of a chinese translation of the above and thought the driver was suppling its own power. Now ive read the english one above better i need to supply 24v power in to pin 11 and earth pin 9 to make it work.
Will try when i get home and hopefully get some action.

The 7I97 input will work with either input polarity
You should not be able to damage the THC output
as long as you do not wire it directly to power.

The 7I97 input will only put a ~4 ma load on a 24V signal
so as long as the wiring includes the 7I97 input pin pair
in series, there should be no way to damage the THCs
optocoupler outputs.
 

I just tried what I think is the top right example without any impact.
I put a jumper between pin 17(thc)and pin 25(thc field +12v) on the thc connection.
then I ran pin 4 (thc) to tb4 pin12(7i97t).
and pin 20(thc field common) to tb4 pin 11.

Is there an easy trick to get arc ok signals without having the arc going?
It was hooked up to a hypertherm hsd 130, but I hooked up a thermal dynamics a60 just to make sure the plasma was actually sending the signal.

Rod,
If I don’t get this figured out soon, I may pick up the z axis you recommended in the other thread. Do you have a link?
Also thanks for sending the corner hold, I haven’t had a chance to look at it, but I appreciate it. 

Im broke and over budget so I’d like to get what I have working, but who knows if that’ll happen.

Alternatively, maybe I can just reuse the z axis I have with a thcad and something like a mesa 7i30 since the z motor is an h bridge. But I’m not even sure what an h bridge is.
This thing is turning into a can of worms.
 

I was running a 2.9.0 prerelease and decided to upgrade to the current 2.9.3. That seemed to go smoothly, but now when I launch linuxcnc, it exits with the following. Looking at the apt upgrade transcript, it definitely installed some GTK stuff. But this is the main error:



I've struggled a lot in the past with GTK 2 vs 3 issues. I'd be happy to move to GTK 3, if Axis and LinuxCNC can handle that, but I'm not sure how it would break my VCP. I've attached some files in case they help

From their diagram it looks like the output is switching on the negative side.
If the 7i97 is expecting a positive input, this will not work. I don't know the card but I am sure PCW will guide you.
A relay may be required to send +24v to the input. example bottom right.