permaculture

["Simon Kartar" <skartar@cfbt.com>]

Hi Elijah

My Granddad used to bend copper pipe of different diameters by filling it
with sand first. The trick is to support the inner part of the tube while
you bend it, that way, it doesn't kink and collapse.

Cheers,
Simon.


                                                                              
                                                 
                    "Elijah Smith"                                            
                                                 
                    <elijah@hilobay.com>             To:     
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[permaculture] Bending Metal                                 
                    biblio.org                                                
                                                 
                                                                              
                                                 
                                                                              
                                                 
                    09/04/02 01:15 AM                                         
                                                 
                    Please respond to                                         
                                                 
                    permaculture                                              
                                                 
                                                                              
                                                 
                                                                              
                                                 





When I exhaust the internet and my own imagination, I turn to you guys...

Out here in Hawaii, there are a lot of greenhouses built with metal pipe
framing and plastic covers.  Often, the pipe is bent into graceful curves
to
create arches, corners, etc.  I want to make, not buy, a greenhouse but I
can't figure out how to bend the metal.  A few comments:

 I don't want a PVC greenhouse - I want something big I can climb around
in.
 I'm aware of "conduit benders" used with electrical conduit... however,
they only give a bend of a certain radius.  I've considered using these
anyway, since a bunch of short bends spaced out over a pipe will give a
long, deep bend, but since that's the only solution I've found, I'm still
thinking it over.
 The one person I've asked, point-blank, "how did you bend that pipe",
won't
reveal his secrets, but says that he "uses hydraulics" and can bend any
shape I can draw.

 So, I put it to you free-thinking creative types.  Any good ideas?

 Thanks!
  Elijah

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