[R-390] Ten Turn Stops Detail

[Flowertime01 at wmconnect.com]

Fellows,

These are ten turn stops plus that 3/4 turn over run on each end.

Does you assembly run 10 and 2/3 to 10 and 3/4 turns from end to end?

Take a look at the tabs. You need something to have the tabs stop against.

There is a back brass color washer that is "engaged" and does not rotate. 
It has a stop.

The turn stops / washers / butterflies / do dads all have tabs and face 
backwards.

The "collar" on the shaft has a pin that hits the front tab and stops.

All the spacers between the tabs have three functions. They fill the space 
between that front collar on the shaft and the back plate. They reduce 
friction between the tabs. They form bearing to hold the tab plates more squarely 
on the shaft.

You own a receiver not an erector set. Put your toy back together before 
you loose some of the parts and enjoy it as a receiver.

Arrange those parts in any order that gives you a nice smooth 10 plus turn 
operation. If you have to move some of those spacer washers around or swap 
them for a better operation so be it. You may want to rub the stop washers 
with some files or stones to remove burs. Any extra filling on the tabs will 
just increase the range from 10 plus turns toward 11 turns. So be it. Split 
the difference in over run to be equal on both ends. There should be nearly a 
one to one ratio of spacers and tabs. With N - 1 spacer washers. 

You need to fill the shaft between the bearing plate and the collar staked 
on the shaft via a pin just to reduce mechanical slop. There are just so 
many tabs washers needed. You need to fill the rest of the space with any 
thing. Not to much to get tight. Not to big to get in the way of the tabs. Not 
thicker than the tabs. Not too sloppy, Not to wishy washey. A whole bunch of 
thin washers lets you get to with in one thin washer clearance. Distributing 
shim filler washers through the stack lets them have other functions like 
reduction of friction.

Simple engineering adjusted at time of assemble and left like that forever.

Roger AI4NI</HTML>