Probe cancellation does not move the axes.

Lcvette
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2 years 1 month ago #310882 by Lcvette

Replied by Lcvette on topic Probe cancellation does not move the axes.

spumco wrote:

Code:

That would be a great addition to Probe Basic. I'm not sure it can be done - but I'm no expert. My initial thought is that the on_abort subroutine is run while LCNC is in auto mode... so there's no way for a program to switch to manual (or MDI) mode. I'll dig around a little and open a new thread - the issue (or solution) may not be specific to PB.

Thanks Spumco, I briefly looked and saw there is a python module to for the status but i don't see a method of issueing a mode change from within a subroutine, at least not at first glance, if there is a method im not sure how it would handle changing the state from within an auto mnode program to manual mode and close the running subroutine which would need to be done in auto mode.. chicken/egg scenario maybe?

task_mode
(returns integer) - current task mode. one of MODE_MDI, MODE_AUTO, MODE_MANUAL.

i used this for some of the display button states in probe basdic but not sure how much help they would be. may need a module added or perhaps there is a feature function somewhere else im not aware of. I also have previously considered having some way to abort to manual mode, but then i think well thats a safety thing too so you don't inadvertently move the machine when it is in a precarious spot, such as the probe down in a hole where it errors from max distance non probe trigger, so.. while a minor inconvenience, maybe saves a major cost or crash?

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Aciera
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2 years 1 month ago #310892 by Aciera

Replied by Aciera on topic Probe cancellation does not move the axes.

It's not possible to switch to manual from gcode but you could set an analog output in gcode to indicate to a python component that you want to switch to manual mode when the gcode finishes or aborts (ie the interpreter switches to IDLE):

Code:

#!/usr/bin/env python3
import time
import hal
import linuxcnc

h = hal.component("auto2manual")
h.ready()
s = linuxcnc.stat()
c = linuxcnc.command()
 
# wait time in milliseconds between checks 
check_interval = 500
flag = False
check_timer_start = round(time.time()*1000)

def ok_for_mdi():
    s.poll()
    return not s.estop and s.enabled and (s.homed.count(1) == s.joints) and (s.interp_state == linuxcnc.INTERP_IDLE)

try:
    while 1:
        if round(time.time()*1000) >= check_timer_start + check_interval:
            s.poll()

            if s.task_mode == linuxcnc.MODE_AUTO:
                if hal.get_value('motion.analog-out-00') == 1:
                    flag = True 

            if flag == True and ok_for_mdi():
                c.mode(linuxcnc.MODE_MDI)
                c.wait_complete() # wait until mode switch executed
                c.mdi("M68 E0 Q0")
                c.wait_complete() # wait until analog output reset
                c.mode(linuxcnc.MODE_MANUAL)
                c.wait_complete() # wait until mode switch executed
                flag = False
            check_timer_start = round(time.time()*1000)
            
except KeyboardInterrupt:
    raise SystemExit

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Ismacr63
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2 years 1 month ago #310903 by Ismacr63

Replied by Ismacr63 on topic Probe cancellation does not move the axes.

spumco wrote:

Ismacr63 wrote:
I don't know why those modes aren't shown in my version. I just downloaded it, followed the installation instructions and it looked like this.

How can I add them?

Sounds like something got messed up in your PB installation.

What Linux distribution are you using, and what version of LCNC? This might have a bearing - I've had problems in the past with certain combinations/versions of Debian/LCNC/qtpyvcp/PB. Seems like frequently some dependency or other invisible 'backstage' issue led to weird problems with PB.

I know it'll be a bit painful, but my suggestion is to make a copy of your config and then uninstall and reinstall PB using the instructions here:
forum.linuxcnc.org/qtpyvcp/53871-probe-b...on-start-here#310377

I'm using LMD6 and LCNC 2.9.3

I'm going to try to do a reinstall.

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Ismacr63
Topic Author
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2 years 1 month ago #310905 by Ismacr63

Replied by Ismacr63 on topic Probe cancellation does not move the axes.

Lcvette wrote:
you are not in full screen mode, hit F11 to allow the display to correctly fit the screen.

I was going to do a reinstallation but first I wanted to try full screen and that was indeed it, now the man auto and mdi buttons are displayed correctly.
Forgive my ignorance but I am very new to all this.

Thank you so much.

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