Don Foreman wrote:

On Thu, 23 Dec 2004 08:55:17 -0500, Bob Engelhardt
wrote:


Very nice! As I always say "Finding complicated solutions is easy,
finding simple ones is hard". The plating makes it even nicer. Four
months is a bit long for the gestation, though. I'd suggest getting a
dog and taking it on walks in the woods. It's a great way to give your
mind time to mull over design problems.


I have time. I freely acknowledge that I'm not the quickest gun in
Dodge. Oh well! I do better with electrical stuff on a good day.

A design question: why the third piece (the ring)? Why wasn't it
integral to the outer/turning piece?


It acts as a washer so the rotating collar slides on the nickle-plated
ring rather than anything turning against the aluminum surface. The
nickel isn't just for appearance. Nickel slides on nickel very
nicely. It's not as hard as chrome but it's pretty hard and very easy
to work with. It gives the clamping lever a nice "crisp" feel.

Nice job!

Next project for you Don is building a shake table so you can satisfy
yourself that it doesn't walk loose. My teenage son might be willing to
loan you one of his subwoofers from that Civic he doesn't have
anymore...since his rollover accident last month. G

I probably woulda tried to do it with something it slipped into and a
rare earth magnet to stick it there until daughter yanked it up and out.

Happy Holidays,

Jeff

--
Jeffry Wisnia

(W1BSV + Brass Rat '57 EE)

"As long as there are final exams, there will be prayer in public
schools"