I have a job I wish to engrave. I have a crosshair aiming setup with my Laser Offset dialed in in the settings. I have the Job Origin set to lower right corner. You can see it in the pix as the green dot. I have the Start From set to Current Position. However when I click Start the laser head moves to the far left until it hits my limit switch and then stops. Afterwards my Show Last Position shows up in the lower left of my screen way off the work surface. See the pix. This will not engrave. I just keeps crashing. Any thoughts on what the issue is? I know this has got to be user error. I must have toggled something I shouldn’t have.
Which position did it report before you started the job? Did you home first? Did you move the laser to the opposite corner?
I did try homing first. Then moved the laser head crosshairs over to the lower right corner of the material and pressed start… The laser immediately went all the way over to the left and hit my limit switch which ended the job. I also tried rebooting my computer and the laser both and started over and it still did the same thing. What puzzles me is the Show Last Position crosshair is clear over to the left of the LightBurn grid where I’m pointing in the pic.
Try this…
- Use Absolute Coords.
- Tell Lightburn the Origin is in the same location as the Home switches.
- Home the machine.
- Use Preview to confirm it is traveling where you want.
- Select the project.
- Frame the project.
- If Frame is okay, Run the project.
- Let us know if this worked for you.
Use absolute coordinates and make sure Rotary is not enabled
Thanks everyone for all the help… I finally figured out what the issue was. My jig was bigger then where it had it placed on my workspace so the laser head was trying to get to the far side of it and couldn’t. Once I moved my jig over far enough it worked.
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You need some way to locate the jig on your workspace.
You don’t need to use absolute coordinates. All coordinate modes work the same way except the 0, 0 point may be different. Not using absolute coordinates allows you more control on how the machine will do the work.
I only use absolute coordinates for making jigs. I have a hole pattern that I created and used to mark the table, then I drilled holes so they always locate in the same place. Creating a jig, I use the hole pattern that marked the table. When I put a jig in it retains the correct alignment.
I set my user origin to the top left along with the start from value. This pays of a lot when you’re doing mugs as you can align them on the rotary without moving it around on your work area.
All of the coordinate systems have their uses. Don’t be afraid to use them as needed.
