Dan assembled the aileron bell cranks. The bushing holes in the angle brackets were matched drilled, in the drill press, a little under and reamed to final size. In case you don’t know bronze bushing are designed to be press fit onto bores but this casues the inner diameter to collapses a tiny bit. We could just start the bronze bushing in by hand until it stopped. We then checked the fit of the rotating steel bushing. Dan polished the outside of teh steel bushing on the Scotchbrite wheel. We thought it was good so used the arbor press to insert the bronze bushings. There is a peice of phenolic to space the angle brackets. We had to use a shim of paper on either side of the phenolic to get the rught feel. (I would really prefer ball bearings but given the limited motion of the bell branks this seems like a good design, but we both wanted a good smooth feel the rotation.)
For some reason our aluminum angle has a big inside radius so the head of the angle clamp bolt and the nut did not sit flat. We machine a little spot face so they sit properly. We will sand this area really smooth.
