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Mach3 how do you set thc to a negative value?

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Mach3 how do you set thc to a negative value?

Postby PlayingDirtyRacing » Thu Apr 13, 2017 4:14 am

I just spent the past couple hours searching for an answer. How do you set the thc minimum to a negative value? I have the proma thc, and it absolutely will not go below 0.000 inch. It functions perfectly besides this. I have tried numerous different times to set the minimum thc to a negative number. Mach3 just will not allow me to put the negative symbol on the line. I watched some videos and tried to enter the value exactly as shown. But still no luck. Am I missing something here?
Can someone please give me a step by step process on how to do this. It is really bothering me.
Any help will be greatly appreciated, I am not real good with computers, but can normally figure stuff out with the Internet and you tube. But this one has me stumped.
Thank you.

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Re: Mach3 how do you set thc to a negative value?

Postby tcaudle » Thu Apr 13, 2017 10:05 am

There is no proc4ess if the screen set they provided or that you are using won't take a negative number into the OEM DRO . You set in the screen painter what size and type numbers it will take. The THC Min and MAX values are added to the screen set and the values stored in the XML file.

The vendor that supplies you the custom screens and/or Profile (XML) for their products should be able to help you. If not you may want to rethink your choice of vendors.

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East German
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Re: Mach3 how do you set thc to a negative value?

Postby East German » Thu Apr 13, 2017 1:20 pm


Here is a modified set file of mach 3.
Unpack and into the folder of Mach 3.
Press the View Button and load the set file.
Change the setting and return to yours set file!

Regards Peter

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Homemade CNC Plasma-Watertable with Mach 3
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Re: Mach3 how do you set thc to a negative value?

Postby rbmgf7 » Fri Apr 21, 2017 8:24 pm

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