I would like your help to deploy a thin extrusion on the next part, I can't convert it into sheet metal to then unfold it correctly and make a DXF to be able to cut it with a laser.
First of all, you would have to make a vertical cut of a few hundredths because for the moment your part is a tube. But a tube is not foldable if you make a cut line somewhere. ;-) If there is one, I haven't seen it ;-)
After that, you have to convert to sheet metal, knowing that on your part you don't have a single straight line. You have to go through AMHA surface.
You have four small pieces of spline of one or two mm that are walking around instead of your sketch. This should cause a message when extruding.
@tous these are just undimensioned approximate splines and not a single spline.