Hello, so my printer broke down for a few days but here is a step by step process of assembly of the grifball, as I've taken to calling it, as well as the rundown of parts you need for it. A link to download will be provided later.
What you need
-8 10mm M3 bolts
-1 14mm M3 bolt
-9 M3 square nuts
-One spring of appropriate size(I don't know how big it is and forgot to measure)