Triangles instead of squares

[FabioF (Fabio)]

Good morning everyone,
I recently purchased a new 20W XTOOL s1 laser engraver and I encountered a problem while testing the materials: instead of cutting squares, as per the preview, it cuts triangles

If this anomaly were limited to testing only it would not be a problem, unfortunately this also happens during project processing

I noticed that this anomaly occurs when the cut feature is after the fill feature.
If I do the cutting first and then the filling there are no problems

If it helps to better understand the cause I can send the .svg file
Thanks in advance for your help
Fabio

[berainlb (PY)]

This is a known issue. You can get caught up here:

xTool S1 - Project end with square cut, but a triangle is cut instead

Ok, im new too LightBurn. but I like it already. I bought and Xtools S1 and used there software. It does an ok job but for what I would love to do, its not suitable. So LightBurn is the best alternative I think. But I have one problem (for now) and couldn’t find the answer. My project contains 3 layers. a engraving lager, another engraving layer en a cut layer that is a square in the software, but it constantly cuts it as a triangle ruining my project. When turning of the other 2 layers th…

[JohnJohn (John Johnson)]

Thank you for reaching out and reporting this.

This is a known issue. As of about a week ago, we have this in testing and we are attempting to confirm that it’s a unique quirk with the xTool Firmware. It may also involve other xTool models.

xTool S1 - Project end with square cut, but a triangle is cut instead

Ok, im new too LightBurn. but I like it already. I bought and Xtools S1 and used there software. It does an ok job but for what I would love to do, its not suitable. So LightBurn is the best alternative I think. But I have one problem (for now) and couldn’t find the answer. My project contains 3 layers. a engraving lager, another engraving layer en a cut layer that is a square in the software, but it constantly cuts it as a triangle ruining my project. When turning of the other 2 layers th…

Question for those of you who use Lightburn with the XTOOL S1

Hi all, I have used a CNC router for several years and am very comfortable using Vectric’s VCarve Pro for design and CAM operations. Although XCS works fine for the S1, it’s not a mature, full-featured program like VCarve Pro, and so I downloaded a trial of Lightburn to try. Unfortunately, a lot happened during that month, and I never had the chance to try it, so it expired. Since I don’t need Lightburn for designing (I can use VCarve Pro or Affinity Designer for that), what benefits does Ligh…

One of our Devs has the xTool S1 on his Desk and is in testing with it.

We’ll post more info as it comes to light.

[FabioF (Fabio)]

@JohnJohn

One of our Devs has the xTool S1 on his Desk and is in testing with it.

We’ll post more info as it comes to light.

Ok, thank you so much!! We look forward to updates Thanks again!!

[JohnJohn (John Johnson)]

When you first connect LightBurn to your xTool S1, in the First few lines of text there’s a Firmware number. Please Scroll back in the Console window in LightBurn, Select and copy that text and paste it into a reply here.

It should look Similar or identical to the one the Dev just sent me.

[xTool S1:ver V40.32.007.2025.01 B6]

Please let me know, thanks.

[FabioF (Fabio)]

My laser version is V40.32.007.2025.01 B6