Tennis Ball Stencil

Create stencils for tennis balls. This will actually work to create a stencil of any printable character for any size sphere. Font is selectable but most fonts won't work for characters like O or D.

This uses the BOSL2 library. Download and place in a subfolder named BOSL2.

Thanks to SlashAndBurn for the following comment:
'Seems like the library has been altered, you need to also download this "old" file so the top of the screws work https://raw.githubusercontent.com/revarbat/BOSL2/53c1e25395bf3276d831bbd6a240db0cb57fde7a/knurling.scad'

Rendering threading is computationally complex, be patient.