[LargeFormat] Bag Bellows Material

[Robert Mayrand]

Anybody ever try to do this with neoprene.
 I'm an avid sea kayaker and I build a lot of stuff out of neoprene, It sure
is light tight, very flexible, nice weight easily available and very easy to
work with. No sewing! Just glue and believe me one you know how to make a
glue joint on neoprene (a long 5 minutes practice) these joint can get all
the pressure you'll give them and they wont break.

For a bag bellow I would build two piece like the collar they put around
dog's neck so they won't lick their wound, and then glued them together at
the middle to give a <> shape. I think this way the bellow would hold it's
shape really well.......and if you need any additional support just put a
small piano wire around the inside (Hobby store or R/C plane store carry
that).

For the neoprene and the neoprene glue, just goe to your locak scuba dive
store.



Robert
Mtl, Quebec 


 <Clive.Warren@megacycle.co.uk> wrote:

> At 22:14 03/01/02 +0000, Clive Warren wrote:
>> Can anyone suggest an appropriate material to use to make some bag
>> bellows?  A friend has a sewing machine and if I ask nicely enough could
>> probably be persuaded to help out on the sewing front.
> 
> Thanks to everyone for all the informative answers to this post for the 5x7
> camera bellows - excellent!
> 
> If I decide to buy a set of bellows then Camera Bellows (URL in
> http://www.f32.net/links.html page) as suggested can supply a set of
> bellows.  It's terrible - starting to feel that laziness coming on,
> particularly after chatting to them on the phone "we can make you some
> bellows easily using the same materials that Sinar, Cambo, Toyo use - well
> we make their bellows too actually".
> 
> The latest incarnation of bag bellows material is a twin layered affair
> using a man-made material for the outer skin which is heat welded together
> rather than sewn. It tends to keep its shape well as the outer skin
> material has been selected particularly with this in mind - avoids all the
> problems of drooping bellows into the light path apparently.  No need for
> springy thingies inside the bellows.
> 
> Must admit that I would prefer to use leather as suggested by a few people
> - Camera Bellows can supply in leather also - this would be hand
> stitched.  Oh, the temptation!
> 
> Will be having a quick look around locally for suitable leather - really
> should make these things myself.........
> 
> Thanks again everyone.
> 
> Cheers,
>           Clive
> 
> 
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