51/49's Rad Pyramid

[βαθμιαίος]

So I'm wondering how to cut the wood to achieve the 60 degrees. Especially with two added complications:

1. The four pieces connecting to the base will be turned inward to meet above the center of the pyramid. I don't know what this does to the angle.

2. If they are to fit perfectly and uniformly so as to create four 60 degree angles, the ends of the four pieces that meet at the apex need two cuts each.

It seems that you just let two of the pieces meet, and the other two connecting on the outside of the original two.

I posted this link before, but what about doing something like this? http://www.precisionpyramids.com/cornerskit.htm