Luban and dxf files

[Invizion]

Hello,

So I made a simple box using MakerCase - Easy Laser Cut Case Design.
Since the box is bigger than my material, I need to split it into multi pieces.

I’ve instaled DraftSight for this job and exported a dxf for each side of my box.
When I add the files in Luban, in edit mode they appear:

But when I hit proccess the objects “disappear”:

Any clue what I’m missing here? Since in that website I can’t automatically split all box faces, I need to split them myself but it seems it’s not working properly.

Thanks

[xchrisd]

You have to select the model and create the toolpath.