Hi Trevor, how it works...
The trim motor is gone for now, I removed it and fitted my Simboards in the console. There is room underneath the console for reconnection later on. The rocker switches in my yokes are dual pole and wired in parallel, currently one side of the dual pole switch operates trim up/dn thru keypress assignments in the Simboard software, it works perfectly. The plan was to use the other side of the switch to operate the trim motor through relays that I have already assembled and tested, and then delete the keypress assignments. Manually winding my trim wheels through 5 complete rotations moves the trim indicator full scale through a small reduction gearbox, this indicator is attached to a pot inside the quad that is wired to the Simboard. 5 turns of the wheels gave 0 -100% in the software and the pot was assigned to trim function. There appeared to be a glitch because the manual trimming was too erratic for use, the pot travel was smooth but it always gave a burst of opposite trim before going the right way - annoying. I shelved the plan for a while and went back to yoke trimming. I'll get around to asking FDT for advice, I'm sure it is solvable, I think it is a conflict between the trim and pitch pots. I can still make the trim wheels spin with the yoke buttons as a novelty, but the manual trimming is on hold for now, not essential but it will be a good addition when I sort it out. You've made me think! I've just made and fitted a self centering device for pitch movement of the yokes using a couple of screen door closers, it works sweet and I'll be posting pics real soon. I'm wondering if the trim pot will operate now that the yoke columns 'park' in the same place, I'll try it out again!
Hope that helps Trevor.
Matt - I too would switch my page to IFSBI, I probably would have to start again as mine is a free google page but that's ok.
Gwyn