that's some tough stuff to get your head around, thanks to past dave I already had a cheat sheet :)

It get's worse from each iteration :D I was quite embarrassed when me and my mum pulled out the hotglue gun... looks a bit like Lukes Lightsaber training ball. I started a collection on thingiverse for inspiration of the next one https://www.thingiverse.com/deefdarko/collections/led-star