A quick tutorial on how to create, name, and reference variables in FreeCAD using Gridfinity as an example. Datum Planes were created to be used in further videos. Like and Subscribe for more tutorials! The drawing referenced in the split-screen can be found on the Gridfinity wiki (https://gridfinity.wiki) at this link: https://gridfinity.wiki/assets/images/spec_draft_willtree8-71da0abf86f4891fe8e24b51a2876e03.jpg The example used is based on Zach Freedman's Gridfinty design, first mentioned in this video: https://youtu.be/ra_9zU-mnl8?si=Hx27u3yhFlUfqz3J #freecad #gridfinity #3dprinting