Normal Boolean Behavior in LB?

[Doug (Doug Fisher)]

I draw the following two shapes in .9.02.

I select the thin slanted piece first, then select the long square/rectangular-ish shape. If I immediately press the Boolean Subtract button, I get this:

I then ctrl+z to undo. I then try Weld All Shapes Together. Undo that. Then try Boolean Union. Undo that. Then retry Boolean Subtract. I thought I would get the same result as when I did Boolean Subtract the first time because I have always done an undo before trying a new operation (the selection always stayed active, so I never had to redo/change that). Instead, I get this:

You have to do this in the steps I listed to get the different behavior. There may be other sequences that produce the same or other behaviof but I haven’t had time to test.

[Rick (Technical Evangelist)]

You are seeing expected LightBurn Boolean behavior as @Grumpy_Old_Man explains in this post.

Boolean tools and the undo function

A great feature is the way LightBurn handles the undo function when using boolean tools. Many times, I will pick the objects in the wrong order and click on the weld or difference tools and it will not be the result I wanted. By pressing CTRL - Z to undo it, LightBurn will then reverse the order of that the objects were selected, and all you have to do is reclick the tool you want to use. Saves from having to try to remember what order you had chosen, and then having to reverse that order. Slick…