Gridfinity Baseplate parametric FreeCAD file

This is a reimplementation of Zack Freedman's Gridfinity basic baseplates using FreeCAD (RealThunder's fork) instead of Fusion 360 / CadQuery. See this video for further information about the project:

https://www.youtube.com/watch?v=ra_9zU-mnl8

I used the CadQuery file from https://www.thingiverse.com/thing:5355895 to create a model (not yet tested in real life). 

Credit to jdegs.