On 11/14/2011 03:56 AM, N_Cook wrote:
William wrote in message
...
The car holder for my GPS navigation system uses a ball-and-socket joint.
It
holds the unit without any slipping -- but no matter how much I fuss with
it, I can never get it into exactly the position I want. There's simply
too
much friction, both static and moving.

I've tried silicone spray lube, but it doesn't do much good. I've thought
of
lithium grease, but... Nah.

Any suggestions?

Thanks in advance.

--
"We already know the answers -- we just haven't asked the right
questions." -- Edwin Land




I would try locksmith's dry lubricant - ground graphite or talcum powder ,
at least no solvents going to attack the plastic



The old slide rule trick is to loosen with graphite and tighten with
chalk dust.

Cheers

Phil Hobbs

--
Dr Philip C D Hobbs
Principal Consultant
ElectroOptical Innovations LLC
Optics, Electro-optics, Photonics, Analog Electronics

160 North State Road #203
Briarcliff Manor NY 10510
845-480-2058

hobbs at electrooptical dot net
http://electrooptical.net