Tetrahedron Joiner Block

I designed this connector blocker a little fun project with my Children. It is a great learning project for Geometry, Chemistry and just for plain out sculpture fun.
In my model, We used 300mm long 10mm wooden dowels.
I have also added another variant in which the holes for the rods have been scaled to 10mm so that you can scale it yourself for whatever application (It is a nicer base shape too)
The model was designed in Fusion360 and was printed in PETG for the photos.
Surprisingly diffi