So I've come up with several variations on braces. The issue is that the brace must be strong enough to support a heavy load, but also allow the frame to float (
and potentially lift and slide).
- The first version was a simple triangular brace -- well, not that simple. Click for a close-up. My plan was that by using two 2x6s the support would be stronger. I think this would be a very good support for a stationary single-tree house. However, the potential push-and-pull created by the other tree swaying could lead to the brace being bent off of the tree.
- The next idea I had was to use some sort of steel channel as a guide. This would take care of the sliding friction, provide support, and still allow the frame to lift if needed. Unfortunately, I couldn't find anything "stock" to work with, and "custom" is not in the budget.
- In order to support the metal brackets, I added a beam. The pictures below show how this transformed to a simple brace made from 2x6s. If I can find a steel plate I'll add that to allow the frame to slide along the brace.
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