re:RE: Ballscrews/linear drive

Steve G wrote:

> The other option I'm considering is something I found in the Small
>Parts Inc. catalog. I can't locate my catalog to get the name of it,
>but it > sort of "climbs" a smooth rod as though it were a
>ballscrew. Anyone know what I'm talking about?

Sure do! This would not be a good choice, IMO. It could be made such
that the "rollers" are 'lift-able', in the event of power outage.
Then it might be OK.

List, He is talking about using three cam follower type
rollers "canted' to a 'pitch' angle, such that rotating a smooth rod
through them results in linear motion.

> Any help is appreciated. Especially names of suppliers in the
> Tacoma/Seattle area, places that don't have a "3 question

limit". :')

Seems like some trim or flap actuators from Boeing surplus might be
just the ticket...

Hope this helps.

Ballendo