I've added the FreeCAD 3D Parametric model to the Files section.

From this you can generate the 2D files for lasercutting.

If you are using Techsoft 2D Design (as used in UK schools) export the file from FreeCAD as a.dxf. Then in Techsoft 2D Deign select Import from the File menu, then change the units to mm in the DXF Import setup.  

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