Problem with homing

[vph]

Hi, can somebody please help me with my homing problem. When installing home switches I didn't think about that and now the switch is at '0' position. Tried many settings but looks like I'm missing something.
It is supposed to search the switch from anywhere towards '0', find it and then go in the opposite direction to the Home position which will be at '0' or somewhere else.

Many Thanks!
Filip

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[urbnsr]

I don't know if this will help, but let me try. I have my limit switches inside my physical limits. And I have my soft limits inside my switch position.

My Y axis has a physical limit of > 625.00mm. I set max limit to 625.00mm. I have minimum limit set to -1.0 and home offset set to -40.00mm. Home is set to 0.00mm. I also have Home_Ignore_Limits set to YES.

I realize I loose a little travel distance doing this, but it seems to work.

HTH
Paul

[vph]

Thank you Paul. I understand what is your setup. The thing is that I'm trying to do it with only one switch which is installed close to the '0' position. So I want '0' and min_limit to be set based on the switch and max_limit to be only soft_limit.

Greetings,
vph

[urbnsr]

Hi vph,

I only have one switch for each axis. I have home location set inside switch so I can manually move axis toward minimum and software will stop a homed axis before hitting a switch. If axis isn't homed accurately, the switch will stop movement before hitting the physical minimum limit. If my axis is not homed properly and I move toward maximum, it will hit physical max. If homed properly, soft max stops the axis.

[rodw]

Best advice is to read the chapter in the linuxcnc docs called homing configuration.

To set a home position say 1" from the switch position you need to set something like
HOME_OFFSET = -1.0
in your ini file

[vph]

Best advice is to read the chapter in the linuxcnc docs called homing configuration.

To set a home position say 1" from the switch position you need to set something like
HOME_OFFSET = -1.0
in your ini file

Thank you! I read it but couldn't understand it well. So I ended up trying all possible sign combination and found "mine" ;-)