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Mach Support Video "Probing Outside Corner Part 2 in probing"
« on: December 29, 2021, 05:11:56 PM »
I am using Mach4 Hobby DEMO.

There is a problem in "Probing Outside Corner".
The probe (G31.1) works as follows and does not measure.
I think it works like the Mach Support video "Probing Outside Corner Part 2 in probing".
URL:https://www.youtube.com/watch?v=ole5nCpsxlU
I think there is something wrong with the program.
Please tell me how to solve the problem.

・ Set all X, Y, and Z axes to "0".
・ Click Measure Corner
・ 20mm probe moves and stops.
・ "No contact with probe" is displayed.
* Probe does not move in the X direction.
« Last Edit: December 29, 2021, 05:20:35 PM by Toshio.K »
Re: Mach Support Video "Probing Outside Corner Part 2 in probing"
« Reply #1 on: December 29, 2021, 05:52:21 PM »
Hi,
This post should be on the Mach4 General Discussion board, no doubt tweakie will shift it in due course.

The problem you describe is not a fault, its just the way some controllers handle a G31 error.

It is common practice when generating automatic Gcode to use G31 as a regular move rather than G1. This is because if the probe accidentally touches
something the machine will stop rather than carry on until the end of the normal G1 move and crunch the probe. It like a safe way to move somewhere
without damage.

What happens if however you code G31 X20? The machine will travel at the prevailing G1 rate to X=20, if it does not contact something along the way.
If it gets to X=20 WITHOUT touching something it will report an error, ie 'No contact with Probe'. Some controllers will just sit there and sulk, there is an error
that needs to be sorted, whereas other controllers carry on.

There are a number of posts on the Mach4 board that cover this.

Craig
'I enjoy sex at 73.....I live at 71 so its not too far to walk.'
Re: Mach Support Video "Probing Outside Corner Part 2 in probing"
« Reply #2 on: December 29, 2021, 08:08:32 PM »
Good morning, Craig.

There was a problem with the program even during "Probe calibration".
There should be something wrong with the program (mc.Probing.lua).

There should be a bug in that it doesn't behave like a video.
But I don't know.
Re: Mach Support Video "Probing Outside Corner Part 2 in probing"
« Reply #3 on: December 29, 2021, 08:20:48 PM »
Hi,

Quote
There should be something wrong with the program (mc.Probing.lua).

That is incorrect, there is no fault with the probing module, but rather some motion controllers handle it better than others.

Craig
'I enjoy sex at 73.....I live at 71 so its not too far to walk.'
Re: Mach Support Video "Probing Outside Corner Part 2 in probing"
« Reply #4 on: December 29, 2021, 09:26:37 PM »
I'm using ESS and MB3.
The probe is also turned on and off properly.
There are also operations that do not cause problems with probing.
Therefore, I think there is a problem with the program.
"Probe calibration" had a problem with the program, so I think it's the same problem this time.
I saw an article in the forum that caused a similar problem. I don't think I'm the only one.
Re: Mach Support Video "Probing Outside Corner Part 2 in probing"
« Reply #5 on: December 29, 2021, 09:39:44 PM »
Hi,

Quote
There are also operations that do not cause problems with probing.
Therefore, I think there is a problem with the program.

I'm sure you think there is a problem, so why don't you research the threads on the matter on the Mach4 board, you may come to a different conclusion.

Craig
'I enjoy sex at 73.....I live at 71 so its not too far to walk.'
Re: Mach Support Video "Probing Outside Corner Part 2 in probing"
« Reply #6 on: December 31, 2021, 04:35:14 AM »
Hello everyone.
There were some bugs.
I was able to make some corrections.
Anyone will be charged for a license, but will that fix the problem with the program?
Art Soft, if you want to take money, please eliminate the problem.
Thank you.
Re: Mach Support Video "Probing Outside Corner Part 2 in probing"
« Reply #7 on: December 31, 2021, 04:51:44 AM »
Hi,
I keep telling you its the way the ESS handles the exception, its not a Mach4 fault. You can complain as much as yu like but Artsoft
cannot fix it.....its just the way the ESS works.

You could try Andy at Warp9.

Craig
'I enjoy sex at 73.....I live at 71 so its not too far to walk.'
Re: Mach Support Video "Probing Outside Corner Part 2 in probing"
« Reply #8 on: December 31, 2021, 04:38:26 PM »
Happy new year everyone.
I look forward to working with you this year as well.
and,
Thank you for the information, Craig.

This is the program that is causing the problem. If this is left as it is, it will advance 20 mm and stop, and will not advance in the X-axis direction.
Can anyone please tell me the solution?
Thank you.

The program that is causing the problem
mcProbing.lua
Line 1137
rc = mc.mcCntlGcodeExecuteWait (inst, string.format ("G% .1f Y% .4f F% .1f", ProbeCode, YMeasurePos, FastFeed))
Re: Mach Support Video "Probing Outside Corner Part 2 in probing"
« Reply #9 on: January 01, 2022, 12:33:53 AM »
Hi,
I don't think there is any fault with that line.

What happens is that the machine advances but does not encounter a probe event. The ESS regards this as a fault and hangs up.
My ESS does a similar thing. If the machine encounters a probe event before the end of the 20mm move then it works fine.

Its just how the ESS handles the exception. Plenty of other people have had the same issue. Have a look on the Mach4 board and you will find
plenty.
'I enjoy sex at 73.....I live at 71 so its not too far to walk.'