[RRLedford]

Check out this other thread for internally bolting your pyramid with mostly off-the-shelf H/W and one custom part => threaded internal sliding donut

http://www.chiefdelphi.com/forums/sh...43#post1213343

The holes in the threaded aluminum donut plug inside the rung pipe were mistakenly drilled at the 98 degree dihedral angle, instead of the correct 90 degrees, which accounts for the miter gap and the spacer stack skewing over in this initial test assembly. The nylon "curved end tube spacers" are the key to the whole concept working. We may need to glue their flat ends together with the curves rotated to the proper tube angle offset to each other to further improve joint stiffness



-Dick Ledford