TapTo Cassette Case insert

This is an insert for use in cassette cases in conjunction with the TapTo project for the MiSTER FPGA. It fits loosely in an empty case, but with a printed cover it should fit fairly snugly inside.

Should be printed upright with brims(I've not tried without, but it might work, at least on a core XY printer).

TapTo: https://tapto.wiki
TapTo Cassette Tapes: https://tapto.wiki/Cassette_Tape_Cases