setting torch height switch offset

[rock4xfab]

what is the proper way to set your switch height( offset) for those that have DTHC I touched off my material zero'd the DRO then slowly brought the torch off the material until I heard the switch click then wrote that number down..

so my code is generally something like this for setting the height command before pierce this off memory i am not at the shop..

z.5
z0.0
z.62
z0
z.19

[plain ol Bill]

The way I do it is reference Z. The torch goes down touches the material and continues down until it trips the Z home switch, then the torch raises just enough to clear the switch. This leaves the torch still sitting on top of the material with the Z DRO set at 0.0000. I then jog the Z up until I can just slide a thin piece of paper between the material and the torch tip. Look at your DRO - that is your torch offset amount. Do this several times and average the results.

Home made machine, Sheetcam and Mach3.

[rock4xfab]

Thanks Bill for the conformation... short of using my Z presetter off the machining center LOL..
My Plasma is a persicion plasma gantry floating Z using CandCNC bladerunner

[rock4xfab]

After some more funny cuts I started reading through manuals again... Here is what I have now.. I measured my torch offset with my dial indicator and base. It is .0370" So I then went into the sheetcam post and inserted it in the Post processor Per the instructions.. Then I went into Mach per its instruction and put the same number in the configure Home/Limits for Z. Now my question is I have in Sheet cam under tools all my Peirce and cut heights along with cut speed.When I post, I can red my G-code and it looks good.. BUT I accidently hit a button in mach on the DTC screen labaled cut conditions.. And now the machine fires and Dives into the plate.. I did not realize that the button was a screen link. what is the minimum that has to be put into that screen for this to start cuttin nice again. Prior to this I was clicking the Arc setting and inputing my voltage there and I had REALY Nice cuts other then the torch was still to High and giving me about 20 deg on the edge..

[plain ol Bill]

I'm sure you already have seen the answer on CandCNC's Yahoo forum. You put the torch offset in Sheetcam or in Mach. One or the other - not both of them.

[rock4xfab]

I'm sure you already have seen the answer on CandCNC's Yahoo forum. You put the torch offset in Sheetcam or in Mach. One or the other - not both of them.

Yep I am goping to empty the mach.. Also can I just remove all the posts from the cut condition button and set my own Arv volts to 90 and be done or do I need all the rest of the stuff in there. I am realy not to concerned with tip saver mode etc.

[plain ol Bill]

I'm not really sure what you are asking - but if you are asking about the cut parameters in Mach then yes you can enter your own cut volts on screen if you want too.