A friend of mine is using light burn and has a problem I have never seen. The image is clean there is no dots or anything All looks good and then far out from the image it is burning a tiny vertical line like a outline of the animal. It does it on every image and also on lettering.
I would encourage your friend to check the preview window for clues.
Here’s our job quality troubleshooting guide for your reference.
Perhaps the image has a background / border that’s not pure white over there toward the edge. If so, it’ll show up on the Preview as @JessN suggests.
That suggests:
- An incorrectly (or never)
Scanning Offset Adjustmenttable - Mechanical problems
If the latter, Start with a known-good test pattern to isolate the mechanical problems:
Scale it to fit the platform and run it as fast as it will go in Line mode with optimizations turned off and power set to mark a sheet of cardboard. Any difference between the shapes in the LightBurn workspace and the actual results on the cardboard will indicate there’s backlash to track down.
This tuneup guide was written for Sculpfun lasers, but you’ll recognize most of the mechanical parts and places to check:
Bear in mind we haven’t seen it, either, which makes diagnosing the problem quite difficult. 
Upload good photos of the problem and the results of the backlash test so we can look over your shoulder.
1 Like
The edges the little lines vertical on the far left and right show up on everything and they kind of take on the shape of the letters or if it’s a picture it will kind of outline the picture in that far left and right with just a very thin line.
That’s yuor preview window, not your job. What it’s showing there is how much overscan there will be with this job at that speed. From that image, I can tell you are filling shapes individually and your speed is quite a bit higher than it needs to be. It may seem counterintuitive, but cut your speed in half and look at the preview again. I would bet run time is faster, then select fill all shapes at once and your run time will decrease again.