¶ Use Laser Cut Interlocking workbench from FreeCAD
More info here : https://github.com/execuc/LCInterlocking
¶ Tips
In the MultiJoin object first face helps setting the parameters:
- New part name : this is not important;
- Thickness : add the thickness of the material you cut;
- Thickness tolerance : I am used to set it to 0 mm;
- Slot width tolerance : I am used to set this to the same value of the laser beam diameter;
- Laser beam diameter : 0.3 mm works great.
Then on the RDCam software (laser cutter control), you can leave unticked the "laser cut compensation".