Designing Tab and Slot Parts in Laser Cutting

I'm curious how different fabricators design their tabs and slots Do you make your tabs flush with the mating surface, or do you recess the

I make a lot of weldments and sheet metal parts that are 12ga to 12in thk, I use 132 per side for the slot Be mindfull if you have tabs on

tab and slot welding table Main Content Pin Slot Joint Joint with one prismatic and one revolute primitives possessing mutually orthogonal motion axes Library Joints Pin Slot Joint

tabletop slot machine Can't seem to apply tab and slot joint between the two Base-flanges I don't understand what the problem is