Reversed X and Z on 0.9g

Discussion about the arduino based g-code interpreter, grbl
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stephenjbell
Posts: 25
Joined: Mon Nov 04, 2013 5:16 am

Reversed X and Z on 0.9g

Post by stephenjbell » Sat Sep 06, 2014 7:03 pm

I've just flashed GRBL 0.9g to my stock Shapeoko 2 (coming from 0.8c). Now my x and z axes are moving the opposite direction of what they were before (negative X to the right, positive Z moves downward).

Is there a way to fix this in the GRBL settings, or do I need to rewire my machine?

stephenjbell
Posts: 25
Joined: Mon Nov 04, 2013 5:16 am

Re: Reversed X and Z on 0.9g

Post by stephenjbell » Sat Sep 06, 2014 7:13 pm

Never mind, I figured it out! In my case, I need to change the "dir port invert mask" variable:

Code: Select all

$3=0
The chart is of what this means is here: https://github.com/grbl/grbl/wiki/Confi ... maskbinary

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