New day new problem

Thanks for your time,eager to see what you come up with.

Here you go PhillC the 2 ZIP folder have the screen shops from 2 different QTPlasmaC config setup the "Last chance saloon" is the latest.  Which I also copied the directory for that.  The screen shots hove the config names at the top of the page. And the backup file for the "last chance saloon"
Thanks for your time.
Have fun
Tom 
 
 
 

Thanks PhillC what you say makes sense, and I had read that info. But not speaking Linux I don't understand what the setting should be. My home and upper limit are at the top..I have about 4" of travel between top and bottom limit stops. I think the 0.5" is what I thought was the back away from the home position. I assume that there is an automatic distance for it to back off the home switch, and I don't need to give it a distance. Again I am using info that worked for Mach. 
Ok so I should put the Max limit to 0.00" and min limit to -4.00" what should the Home offset be 0.00' or a small amount.
From what I can see when you start a cutting program the Z axis will rise then trip the Z max limit.  That is what is happening

 

Thanks done deal in the morning will make the changes. Should be only few more steps.

I have not had much luck here. I could not see the encoders counting so I don't know if that was my hardware or the config. It was midnight at the time.

Hi PhillC
I tried to make the changes you talked about and it did not go well.  BY this if I changed either the Max limit of Min limit it would not start QTPlasmaC but show an error seen in the screen shot.  There seems to another location that also needs changed (to my untrained eye).  I also attached a screenshot of the Hal for the Z switch lines, not know if that helps.  Also the page in the Pncconf as to the switch selection for the Z axis.
The only positive thing I learned was the Home offset must be larger then 0.300" of it will not move far enough the home switch and get an error.