Top spin station

A spin station for a top. Sized for a 75.2mm 11.5mm thick [concave lens](https://www.amazon.com/gp/product/B00CLC7V5C) popular with top spinners. Edge of the print extends above the lens by a little bit to try to contain the top on wild spins.

[OnShape design file](https://cad.onshape.com/documents/1a2612b7e5111525823b6845/w/38566b1c3858b018fa95263f/e/364bebf9a4be7afe09958633
)