Gmoccapy - Combination M61 + G4

[zz912]

I use RIP instalation Branche 2.9, sim gmoccapy

If I enter a combination of M61 and G4 commands in the command line, sometimes the G4 command is executed, sometimes not.

Watch the video:

MDI_command_ignore_G4.mp4

[zz912]

1. If you cannot view the video, please download it and play it in VLC player. On some PCs the video plays, on some PCs the video says that it is broken.

2. I think this bug is the cause of these bugs:
   Gmoccapy MSG: Must be in MDI mode..... #2453
   Gmoccapy - Remap - random bug #2448
   I tried to look for the cause of these bugs and found that the execution of MDI_COMMANDS is random. Maybe this bug isn't the cause, but I can't look any further.

3. I managed to simulate the bug:

• on a physical PC, RIP installation, branche 2.9
• on Oracle VM VirtualBox, RIP installation, branche 2.9 (reduce CPU is irrelevant)
• on Oracle VM VirtualBox, Debian installation, branche 2.8.4 (CPU reduction is irrelevant)

4. I have a problem that HansU wants to help me solve the previous bug, but he can't simulate it. Therefore, I would like to ask for feedback if this error also appears.

[zz912]

I made tests of this bug:
2.8.0-pre3, GUI AXIS, BUG - NO
2.8.0-pre3, GUI GMOCCAPY, BUG - YES
2.8.0-pre3, GUI GSCREEN, BUG - NO
2.8.0-pre3, GUI SILVERDRAGON, BUG - NO

2.7.15, GUI AXIS, BUG - NO
2.7.15, GUI GMOCCAPY, BUG - NO

I couldn't plot 2.8.0-pre0 and 2.8.0-pre1 so I couldn't test them.

[zz912]

The cause of this problem is in these lines:

linuxcnc/src/emc/usr_intf/gmoccapy/gmoccapy.py

Lines 3540 to 3544 in 56883b9

	if "G43" in self.active_gcodes and self.stat.task_mode != linuxcnc.MODE_AUTO:
	self.command.mode(linuxcnc.MODE_MDI)
	self.command.wait_complete()
	self.command.mdi("G43")
	self.command.wait_complete()

As these lines cause more problem, I made a HAL pin which disable these lines.
#2571

Here is the test result:

When I change tools Q1 to Q5, the lines are activated. This is the default behavior of Gmoccapy. Note that LCNC ignores G4 P10.

When I change tools Q6 to Q10, the lines are disabled by my HAL pin. LCNC is working properly.

[gmoccapy]

I will be on this point in early September and double check all code and hope to find a solution for all the issues you mentioned.

Could you please do a test for me?
Disable the lines in "tool in spindle changed" and then set the retain G43 parameter in the INI.
Have the bug gone away?

Thanks for you help

[zz912]

I will do the test and then I will give you feedback.

[gmoccapy]

Thank you

[zz912]

I tried to do that test, but I couldn't get RETAIN_G43 to work:
https://forum.linuxcnc.org/38-general-linuxcnc-questions/49657-retain-g43