Squares are not square

Im having issues with my laser not making a true square when cutting or etching. I dont know if this is a new issue or if its always been there. I was making a square template as a plaque alignment tool and thats when i noticed that the image was out of square. Im running a Longer Rays 5 20w. I have the latest version of lightburn and everything seems to be up to par. I’ve checked all the physical aspects of the machine, cleaned, checked belts, cleaned all rollers, checked frame for alignment. I also tried changing the speed with no luck.

Does anyone have any suggestions? Any help would be greatly appreciated!

Need more info. Just saying not square doesn’t tell us anything usable. How are they not square?


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When you say “square” can you confirm what is out of square. See Tims post above and let us know if it looks like any of the examples shown.

If it is simply coming out as a rectangle you could have ax axis out in either direction.
Measure the square and report back to us the size x and y.

Cut a circle and see if the size is concentric.

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Sorry for the lack of information. It would be “C” in the example but not as dramatic. When looking at it , it looks ok but when I used the plaque or even a square its noticeably off. I used a rectangle to get more of an idea how much it was off. I used a 7" x 9" and its about 1/8" off from top to bottom so not as bad as in the example but enough to make alignment a pain

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I made them dramatic to make it easier to select an option.

With results like that I would first check to be sure your machine’s frame is square. It could be a stepper motor losing steps, but I think frame issues are more likely here.

Look through the link Rick posted as well.

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I just found my problem. While waiting for a response i pulled the laser out of my cabinet to affirm the frame was square and it was but i noticed the gantry was slightly off, jumped a few cogs on the belt. I realigned and its good as gold. Thank you for taking the time to help out, much appreciated

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