How to reverse motor direction

Assembly questions and answers for the Shapeoko 3 CNC Mill
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weheh
Posts: 16
Joined: Wed Jun 14, 2017 4:20 pm

How to reverse motor direction

Post by weheh » Thu Jul 06, 2017 6:20 am

I want to get the GRBL to mirror motor direction in the x-axis. I thought $7=001 might do the trick, but I don't know how to set $7 in the Universal Gcode Sender software. Any help appreciated. Thanks.

WillAdams
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Joined: Mon Apr 09, 2012 6:11 pm
Location: Pennsylvania --- south of the Turnpike, East of US-15
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Re: How to reverse motor direction

Post by WillAdams » Thu Jul 06, 2017 4:45 pm

Just send

Code: Select all

$7 = 1
to the machine and it should make that change.

To verify, send

Code: Select all

$$
Please see https://www.shapeoko.com/wiki/index.php/Grbl for further details.
Shapeoko 3XL #0006 w/ Carbide Compact Router w/0.125″ and ¼″ Carbide 3D precision collets

weheh
Posts: 16
Joined: Wed Jun 14, 2017 4:20 pm

Re: How to reverse motor direction

Post by weheh » Thu Jul 06, 2017 4:52 pm

OK, got this one figured out, too. The doc says $7 is the setting for inverting motor directions, but in actuality, the firmware says $3. I set $3=4 and everything is hunky-dory. Thanks.

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