hal setup for probe

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12 Sep 2020 18:17 #181906 by cmorley
Replied by cmorley on topic hal setup for probe
To be clear the other probing routines work?
Does the machine start to move ?

It's timing out (probably after 60 s?) I don't understand the other error unknown oword number.

I've never used calibration = but testing the sim gives a different error
'G38.2 move finished without making contact.' which is expected with no probe...

I wont be able to look at this again for a while off to travel to work.
Hopefully Jim (qtdragob author) will see it and comment.

Chris

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12 Sep 2020 19:14 #181917 by lllars
Replied by lllars on topic hal setup for probe
Yes the machine moves and seems to complete the calibration routine. It gets the surface height, then jogs x and z-down into the hole. Probes both ways in x and y directions, probes both ways again, and then z-up when done.

The other routine I've tried is probing for outside edges and corners. That one seems to work 100% correctly, in that it zeros out the g54 positions when done. Still all zeros in the 3 rows though. I also assume the position is a bit off since the probe is not calibrated. It doesn't even know the diameter of the probe tip.

Thanks for your help thus far Chris. I hope you enjoy your trip.

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12 Sep 2020 20:44 #181925 by lllars
Replied by lllars on topic hal setup for probe
I've made some progress.

First of all I went through the console output and tracked down and resolved a lot of the errors and warnings. It doesn't seem like any of them were related to the problem at hand, but at least the console output is a little cleaner now.

After that cleanup I tried probe calibration again and got the same result as I was getting before. So then, since Chris had mentioned it was timing out, I bumped up the feed speeds a tried again, and that time it succeeded! Console output attached.

Unfortunately the results don't look right. My probe has a 0.125" ball and I'm probing a 0.562" ID hole. I've attached a photo of the results below. It looks like it calculated my probe diameter to be 0.446". Please take a look and make sure I am doing this correctly. Am I entering the 0.562" diameter in the right field? And am I interpreting the results correctly?

Another issue is that the results don't appear to be getting saved anywhere. They are gone when I restart linuxcnc. Are they supposed to be getting saved? If not, there must at least be some config variable where I can put the probe diameter...
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