Summary

A pass at a dome, all parts are printed.

Instructions

You need 30 A (short) and 35 B (long) struts. The strut ratio is 1.131:1 if you want to make it bigger. This model is using 40 and 45 mm struts.

You need 20 hexa (6 sided) hubs, and 6 penta (5 sided) hubs.

To start just take all short A struts and fill up all of the penta hubs.

Then take 10 hexa hubs and chain them together in a line with the long B struts until they join up to make the circle base.

Add all but one of the full penta hubs to the base then fill in the field with the rest of the long struts and the hexa hubs.

Once you get to the top add the last penta hub

When in doubt consult the experts: http://simplydifferently.org/Present/Data/Geodesic_Dome/dome/22-2v-1_2.map.png