For those who don’t know, Onshape is a relatively new parametric 3D CAD program that runs in the cloud and is similar to Solidworks, Fusion 360, and other CAD products. They recently introduced a scripting language that lets others develop enhanced or new features for the product and a couple of the ones created recently looked useful for GF users.
This one lets the user easily create T-slot joints that creates the cut features needed to use bolts to connect walls and bottoms together in a box-type design.
And this one lets you created slots and finger joints for tabbed features where flat sheets are connected perpendicular to each other.
Key design parameters can used via a dialog box for both of them to change the slot and joint specs at will. I’m really looking forward to trying this out.