[ATM] Bearing brakes

[Don Clement]

I copied a B&L design for holding a Stereozoom microscope for the brakes on
my parallelogram 11x80 binoc holder. The B&L design used a 1/2" diameter
steel pivot. Perpendicular and  below center to the 1/2" pivot rod is a 3/8"
diameter through hole. In the 3/8" diameter hole is a steel split nut with
chamfered ends. Axially through the split nut is a 1/4" bolt so that
tightening the bolt brings together the split nut that allows for variable
friction against the 1/2" diameter rod.  This clutch system works great.



Don Clement

Running Springs, California





> Hi folks,
>
> I'm in the middle of building a parralellogram mount for my 20x80 bino's
>
> I'm looking for ideas on applying stiction brakes to the various pivot
> points. And are looking for any inovative ideas that folks like you guy's
> come up with  : ))) and are willing to share. Even if you have an idea
> no usually suited for this purpose but could be adapted to suit.
>
> For the main arm, I've been thinking of using a small snatch block on
> the bino end of the main arm with a wire running from the base post
> out the the snatch block and back again. And apply a brake to the snatch
> block.
>
>
> Regards,
>
> Ozzy