Needed Post Processor help

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Needed Post Processor help

Postby Papashape » Wed Jul 04, 2018 2:15 pm

I have a Chinese CNC Router, it's brand name is CNCEST. Its a 60/40 CNC bought off of eBay. I am running Mach3 as machine control. My first project was a 5 in circle with text in the middle. Im using the Mach3 2/3 inches post processor. My machine is set to inches. Every time I run this gcode it is about half an inch in size when the machine cuts it. I have cut on this machine before using a downloaded gcode. The machine cut that just fine. I have already tried the motor tuning and that didn't seem to make a difference. Any help would be appreciated.
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Re: Needed Post Processor help

Postby Adrian » Wed Jul 04, 2018 2:48 pm

Are you 100% sure you're using an inches post processor and Mach3 is set to inches as well?

If you're cutting other files without problem then it's not going to be a motor tuning problem.

You could edit the g-code and look at the values to be sure or attach it here if you're not confident reading it.
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Re: Needed Post Processor help

Postby martin54 » Wed Jul 04, 2018 9:22 pm

As Adrian has said are you 100% sure your machine is set up in mach3 to use imperial measurements ? It doesn't matter what units you use to design your project but the post processor you select must match the control software for your machine.
Plenty of people on the forum using mach3, some have metric set ups others have imperial set ups, some use the ATC option others don't :lol: :lol:

All the mach3 post processors supplied with the software work OK, generally when people say their machine is cutting everything very small or everything is huge it is because they have selected the wrong post processor for the control software set up :lol: :lol:
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Re: Needed Post Processor help

Postby tomgardiner » Thu Jul 05, 2018 12:08 pm

Did you draw it in inches? Material setup sheet select inches.
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