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Parallel Port Limit Switches

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24 Jul 2019 20:39 #140470 by NewToRouting
I'm trying to setup my limit switches. I can't seem to find a tutorial explaining how to do this. I'm using a Parallel port. I found this link wiki.linuxcnc.org/cgi-bin/wiki.pl?Homing_And_Limit_Switch . I think I need to use the Stepconf-Stepper Config Wizard Pins 10-15 but I have no idea where to start. I had this setup in Mach3 even tried importing settings from there without any luck.I can Jog the machine. Any help would be greatly appreciated.

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24 Jul 2019 23:50 #140484 by BigJohnT
You might attach the Mach setup file as well as attempt to use the Stepconf wizard and enter the information about your machine.

JT

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25 Jul 2019 01:05 #140489 by tommylight
Also pin 14 is an output, not an input.

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25 Jul 2019 19:43 #140560 by NewToRouting
Thanks for such quick responses, this Forum is great. I did import my settings from Mach3. That helped with setting the outputs properly but not with my limit switches. After searching for a solution late into the night I decided this morning to go back and look over wiki.linuxcnc.org/cgi-bin/wiki.pl?Homing_And_Limit_Switch What I came up with was setting( Pin10 Min Limit + Home X )( Pin 11 Min Limit + Home Y) invert both checked Pin 12&15 Unused( Pin 13 Min Limit + Home Z) invert checked. Parport Base 0xbc00. Initially Z was set on Pin12 but the Z axis didn't work so I set Z to Pin13 . I have a 6040Z CNC if that helps anyone.

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28 Jul 2019 18:00 #140826 by andypugh
The Wiki does contain some useful information, but use it with caution. It is written by users and often not maintained, so some of the pages are very old and out of date.

The authoritative docs are here,
www.linuxcnc.org/documents/
Choose the correct link for your version.

I don't know of a specific limit-switch page in the docs, but there is useful info here
linuxcnc.org/docs/2.7/html/config/ini-homing.html

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