Iwona G wrote:

Carl, I am not 100% sure what angle you are talking about but, what I have already written on a site of topic of Soccer Slide (answering to your post), the trajectories of belts in Soccer Slide intersect each other under an angle of 63:26:06 degrees (63,434948822922 deg = 1,10714871779409 rad)

Yes, I saw that. And to be honest I'm not sure who is correct. I cheated when I got the above number and googled the angle between two faces of a dodecahedron. This should be the same angle between the slice layer planes of a Pentultimate as they are parallel to the faces. And your belts run along these planes. Here is the website I found:

http://members.tripod.com/paul_kirby/Linear/dodoca.htmlAnd if I understand it correctly it says the answer is 2*cos-1 (.5/sin72). This is 116.565 and the supplementary angle of that is 180-116.565 or 63.435. Ok... forget everything I just said. I swear the last time I did this I got 58.2825 and I now don't have a clue what error I made. Boy... I've now burned 30 years worth of mistakes with my once every 10 years allowance.

And I though I was good at math,

Carl