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MACH4 G31 MOTION WILL NOT STOP ON PROBE CONTACT
« on: August 27, 2021, 01:40:32 PM »
Hello,

I am running Mach4 with Pokeys57CNC

Sorry to post a new topic on G31.  I've tried searching the forum archives and can't find a similar problem / solution.

The problem is when I run this gcode command in the MDI (as a test) the z axis does not stop on probe contact.

G31 Z-10 F50

I can run probing with no issues using the Probing Wizard.  Also the Touch light indicates contact during the move (using the gcode above).

Not sure what I am missing.

Anyone else had this issue?

Thanks.

Offline smurph

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Re: MACH4 G31 MOTION WILL NOT STOP ON PROBE CONTACT
« Reply #1 on: August 29, 2021, 04:49:52 PM »
Hi,

Since probing is a real-time process, it must be handled entirely by the motion controller.  So I would investigate the settings of the Pokeys.

Steve
Re: MACH4 G31 MOTION WILL NOT STOP ON PROBE CONTACT
« Reply #2 on: August 30, 2021, 04:49:10 PM »
Thanks Steve

Offline gorf23

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Re: MACH4 G31 MOTION WILL NOT STOP ON PROBE CONTACT
« Reply #3 on: August 31, 2021, 01:43:51 PM »
I haven't had any probing problems with the pokeys57CNC make sure you are wired to pin 19 on pokeys and on some of the older boards you need to add a i think pullup resistor to pin 19  but been a while and don't remember for sure, the only drawback for me is it won't work with more that one probe connected..

Offline smurph

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Re: MACH4 G31 MOTION WILL NOT STOP ON PROBE CONTACT
« Reply #4 on: August 31, 2021, 04:00:39 PM »
I haven't had any probing problems with the pokeys57CNC make sure you are wired to pin 19 on pokeys and on some of the older boards you need to add a i think pullup resistor to pin 19  but been a while and don't remember for sure, the only drawback for me is it won't work with more that one probe connected..
Wow.  Good information.  Thanks!

Steve
Re: MACH4 G31 MOTION WILL NOT STOP ON PROBE CONTACT
« Reply #5 on: August 31, 2021, 07:04:25 PM »
Thanks gorf23!

Yup wired on pin 19.  Usually I don't have a problem.  It seems at times either Mach4 or Pokeys "looses itself"  I can't quite figure out how or why.

Re: MACH4 G31 MOTION WILL NOT STOP ON PROBE CONTACT
« Reply #6 on: August 31, 2021, 11:00:07 PM »
more then 10 machines ,all pokeys,all have probe ,never had problems,folow pokeys instruction