Laser “drag” issue

changuage1776 · May 1, 2019, 8:38pm

Hi all. Finally got the jtech up and running - there was an issue with the xcarve control board.

Now the issue I’m having is the laser creates burns moving between positions. It’s hard to describe so I’ll just post to see if anyone has a solution.

Any help is greatly appreciated!

raykholo · May 1, 2019, 8:45pm

Covered here:

github.com

LightBurnSoftware/Documentation/blob/master/CommonGrblSetups.md#x-carve

[Return to main page](README.md)

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# Common Grbl setups

If you have a GCode-based system, like a Shapeoko, Eleksmaker,  X-Carve, or Acro system, you might need to make some simple changes to get the most from LightBurn.

#### Short version:

- You might need to adjust your spindle max RPM value ($30) to match the LightBurn default (1000) or vice versa.  The value in LightBurn is called "S-Value Max", in the [Device Settings](DeviceSettings.md#s-value-max).
- You might need to enable "Laser Mode" if you have GRBL 1.1f or later (\$32=1).
- If your machine uses negative workspace coordinates you'll need to apply a workspace offset (G10 L2 P1 xx yy) and set your machine status reporting to be relative to the workspace origin, not the machine origin (\$10=0).



#### Grbl Flavors

Grbl firmware was originally designed for CNC machines and 3D printers, with laser support added more recently.  It is highly configurable, and this is both a blessing and a curse. The "standard" way a CNC machine is configured is somewhat different than the way laser machines often are.  Luckily this is easy to change, and easy to switch from one to the other.

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changuage1776 · May 1, 2019, 8:59pm

Thanks Ray, somehow my $32 setting went back to 0. I have reset it to $32=1 and boom we good to go!

Thanks for the help and quick response.