JA the problem with that idea is the stacked plywood is mechanically very weak compared to using thinner ply running vertically up/down the sides of a triangular prism.
I built a very solid fixed wooden tripod before which took the form of an egyptian pyramid, where I used two jarrah floorboards butted edge to edge along each edge of the pyramid. Planed them by hand to produce the desired bevel, then glued with marine epoxy and inconel (bronze) wood screws, and varnished. If I had to make another I would do the same again.
As solid as a tree stump, it carried an 8"f/7 newtonian on a german mount. You can see it in one of the photos of the ATM section of S&T of June 1981.
|