Re: Where to find bellows?

I could be sorta like Betsy Ross in honor of the Democratic
Convention in Boston ;-o

Darn thing is, I have thousands of feet of a variety of platic
flexable hose (Innerduct that we run fiber optics cables through) in
PVC, Teflon, Polyethelene in all sorts of sizes in my shop and NONE
of them is significantly compressable.

It's always the easy stuff that trips you up <G>

Jeff

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "caudlet" <thom@t...> wrote:
> --- In CAD_CAM_EDM_DRO@yahoogroups.com, "washcomp" <jeff@w...>
wrote:
> > I am looking for a pair of round screw cover bellows:
> >
> > 1.5" to 1.75" ID, 2.325" to 2.5" OD, 30" to 36" long
> > Liquid tight (for lubricating oil)
> > Similar to Gortite Gortiflex neoprene coted nylon
> >
> >
> > I can find these at McMaster Carr for about $93 each, MSC is
> slightly
> > less, but only up to 24". Gortite direct only stocks to 24" (6
> week
> > lead time on non-stock legnths)
> >
> > Two hundred bucks seems a lot to spend on two pieces of glorified
> > vacuum cleaner hose. Any alternate (cheaper) sources (none on E-
> Bay)
> > would be appreciated.
> >
> > Jeff
>
> Jeff: The only problem with using things like motorcycle tube
covers
> is that they may not have the contraction coefficent you need. How
> small must they compress when the carriage is at a far end? If
your
> are into abuse, then Google for "bellows" plus things like "home
> made" or "Do it yourself". About a year ago I found a site that
went
> through the steps to make your own bellows (granted they were for a
> large format camera). They gave measurements and suggestions for
> material. They liked the rubber coated raincoat stuff.
>
> I didn't do it. If you decide to make your own make me some too!;-)