(I Am in desperate need of some help!) Laser seems to want to operate on wrong axis plane

[christiancurby]

Hello, I have a Jtech laser and a Shapeoko 3XL setup, with Lightburn and a camera. I have used the laser successfully using the start from the

current position setting however when I try to use the camera and Absolute Coordinates setting my machine is failing.

The machine wants to carry the laser off of the work surface to a point somewhere out front of the machine, it grinds the wheels trying to continue moving forward and to the left of 0,0. I have attached a photo. I have the use Laser and use CNC macros but this has been an ongoing issue since I have first set up this machine.

Please help I have a large job to do and I need to get this thing acting right!

[christiancurby]

[LightBurn (Oz)]

Have you configured the machine origin properly to the front left with a workspace offset, and set $10=0 in the settings?

If not, read here: https://lightburnsoftware.github.io/NewDocs/CommonGrblSetups.html

[christiancurby]

Hi thanks for the reply, ok I think I have figured out why I am having the problem. I believe I am setup correctly in the software but the setup does not account for the fact that my laser is mounted 7.5" in front of the Z-Plate on my Shapeoko. So when the software wants to go to its origin it is trying to go to X0 Y-7.5. When I told the carriage to go X0 Y7.0 it came to what is the actual 0,0 position with no grinding or other issues.

So is there a way to offset the Y in my origin by 7"?

[christiancurby]

This is an error message I think I am getting regarding this issue.

HLP:$$ $# $G $I $N $x=val $Nx=line $J=line $SLP $C $X $H ~ ! ? ctrl-x

So tried to set the origin to X.25 Y7 but it did not work.

[LightBurn (Oz)]

You should be able to just subtract that offset from the workspace offset macro you use to set the zero point.