I thought it was time to get my head around pen stuff, so I'm starting off simple with this cube. This pen project renders a cube/rectangular prism and you can rotate it right and left (up and down is WIP)
Inspiration from the many great scratchers who do amazing 100% pen projects. I think for a first pen project this is quite alright! (but pretty mediocre compared to people like @Noroz and @PeaBrainProgrammer)
