I’m having scaling issues - my guess is that I’ve always had this issue but it’s only noticeable with larger pieces, such as the one I tried to cut today.
I’m making model buildings out of MDF. My workflow is fusion 360 > export DXF > lay up in inkscape > save svg > import into lightburn > cut.
I’ve taken some photos and screenshots to demonstrate what is going on: https://imgur.com/a/NTjYFbS
The piece on the left is around 0.25mm taller than it should be and the piece on the right is around 0.25mm shorter than it should be (my calipers aren’t big enough to measure the heights). This means that they won’t tesselate on the corners like they should. The first image in the imgur link gives the best demonstration of this. At the bottom the bricks line up and can tesselate but at the top there’s a difference of around 0.5mm so they cannot join.
I’ve tried cutting with 0.265 line width and 0.01 line width, this made no difference. I’ve also tried putting small gaps in the lines so they’re not complete closed shapes, this has made no difference either.
I’m using a generic 80W co2 laser.
I’d really appreciate some help figuring this out.