Hi Robert, I'm new here too so not sure whether I'm supposed to reply here or try and find this
thread under greenhouses?? Anyway...I'm sure the lovely admin folks will work their wizardry and connect the posts.
While researching, I came across this excellent calculator which gives measurements for height, diameter, radius, and circumference, and provides data for both the standard 5/8 and 3/8, as well as the flat base 5/9 and 4/9 Kruschke version. I'm planning to build the 3V, 5/9 Kruschke dome. I could have it all wrong but my understanding is that the only difference between the build of the standard and the build of the Kruschke is a slight difference in 20 of the triangles.
For example, the 3V 5/9 Kruschke build would require the following triangles built:
30 x A = 0.956 m | 9.49°
35 x B = 1.109 m | 11.02°
80 x C = 1.222 m | 12.16°
20 x D = 1.279 m | 12.74°
165 struts
The standard 3V 5/8 (not flat) would require the following triangles built:
30 x A = 1.011 m | 10.04°
55 x B = 1.170 m | 11.64°
80 x C = 1.196 m | 11.90°
165 struts
Both require the same amount of struts (165), just the dimensions are slightly different, which results in an extra 20 type 'D's, but 20 less type 'B's in the Kruschke version. And you get a nice flat edge to work with too.
Hope this helps. Its a bit of a minefield out there in the geodesic dome building world!