Latest update on this treacle-paced project...
Made a manual trim bracket. I never liked the flimsy centre console setup in the RV-6, so I re-routed the cable and figured I'd mount it sideways, so the knob rolls forwards and back, like a mini version of the trim wheel in a spam can.
It has taken me the best part of a year to commit to this design. Here is the bracket, and here is how the cable is now mounted. The bracket is monted using two of the wing spar bolts.
I also chopped up my nice new Vans throttle and mixture cable bracket, which replaced the scary one that came with the aircraft. The problem I had was the mixture cable, which came through the firewall and then had to do a series of very tight, awkward bends to line up with the bracket. Not nice.
I used a piece of the old one CherryMax riveted to the new one. The heim joint is right at the very limit of its angle, but doesn't bind up. I wouldn't have built it like this, but it's the best I can do in this situation.