Hi, I created an svg with Inkscape and imported it to LightBurn. The problem is, that the obects were not created by me and when if I cut out this shape with LightBurn, then it follows the curved line several times (slightly shifted?) and burns all my wood. It cuts the straight lines without any problems. How can I say in LightBurn, that it only should be ONE cut on the same position?
Do you perhaps have multiple passes selected?
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Does the vector file contain multiple layers?
It’s possible that you have lines that have duplicate layers or that some lines have been duplicated within the same layer.
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Hi, thank you for your answers. I have noticed that the problem is not that the laser draws the lines slightly with an offset, but that the material is getting too hot. It is a glued 3-layer board made of wood. The laser now traces the individual small shapes and if the material gets too hot, it smolders internally.
For testing, I tried to copy the shape to different layers and so I wanted to ensure that it didn’t just follow the same shape at once, but had enough time to cool down. Strangely enough - although this is exactly “one” object in LightBurn - the objects on the shelf were not exactly burnt as one object, the shapes from the different layers had a slightly offset in the y-direction on the wood.
Is there a way in LightBurn to give the material some time to cool down between the different passes? I want to cut something out, not fill it.
You can just run single passes, then run the job again without moving the material or the laser…
But this might be a case where getting a different material is the better choice. Are you using foam-core plywood? That one will burn anyway and I believe is a bad idea to cut in general, since the foam can release toxic gases
If it’s normal plywood and it’s starting to burn, you want to change your settings - go faster, use less power, etc.
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