Patterned Icosahedron Template

I took and trimmed the isodecahedron file I had made, and turned it into a single 'kernel', that I then copied and assembled to form the entire d20. Now, whatever changes are made to the kernel are replicated across the entire d20 in the assembly file, easing the process of making artistic/geometric dice! Still working on an easy way to add and modify numbers, but I've found this fun to play around with, and figured that you all may enjoy it as well.
This file was made in SolidWorks 2017, and is not backwards compatible. If anyone knows a way to back-save files, I could try to make some that could be opened in earlier versions of SolidWorks. The red surface is the one that faces outwards, make sure that your designs are modeled on that surface.