By design, geodesic domes evenly spread forces across the entire structure. No particular point takes more stress than the other. This effect is amplified by tessellating the dome even further into other frequencies. If you're interested in the math have a look at
this page.
I am actually interested in timbers as opposed to dimensional lumber because they can be easily CAD/CNC machined to achieve the faceted surface and remove the need for cross members (as seen
here).
Plus I have access to very inexpensive stock, all of which is 8' +- 1"... which is perfect because the CNC lathe only supports 8' stock. This is really the best way to maximize my surface area with the limited high quality/inexpensive stock I have available. I'm not opposed to a gable with a loft per say, in fact it was my intention when I purchased the books and spent 6 months studying it. But it looks like this is my best option now and I was hoping someone had some experience with the joinery. I have yet to see a dome timber framed, only stick framed with dimensional lumber. Ive spent quite a bit of time calculating the angles, CADing the joints, and testing its fit and I would hate to have to use bolts and angle brackets to join such a great looking structure.
