Eccentric cam wing assembly tools

This is a fun thread to read. "How many engineers does it take to ..."?? I say that with many smiley-face emoticons.

FWIW, the simple taper pin that my friend made works 10 times out of 10 with my -29. It's just a delrin pin with a solid handle at 90 degrees to the major axis of the pin. If the wing bushing are misaligned by a few mm, the pin pulls the wings together. If they are misaligned by more than that, it's time to make sure a) the flap handle was in -2 or so and b) the stick was more or less neutral and c) the divebrake handle was at the forward 1/4 or so of travel.

P3

Steve's tool is a bit undersized on the 20 & 27. No problem on the
20 because there's a reasonable taper at the end of the pins –
not so on the 27 where there's only a rounded corner with a tight
radius; so you have to be really fussy lining up to get the first pin
in.

I would love a pin that's ground off at the end so there's only a
few degrees of arc. Then you could rotate to find if the next hole
is high or low. Fingers are not straight enough.

As for marks, I filed a flat spot where the cylinders line up, and a
notch at the maximum difference.

I find that feel works better than vision on a promising soaring
day because my eyes don't adapt quickly to under the turtledeck
when the sun's out.