[TheForge] Sheet metal bender

[Peter Fels And Phoebe Palmer]

Daniel;
If you weld 2 pieces of stout pipe, 2 ' long, at right angles to 
a beam, about 1/8" apart... that will form a bending jig for youy 
flat sheet. Feed it in a little at a time and push down to bend 
it a bit, push a little more sheet between the pipes and repeat. 
Keep that up and you will have a cyl, ready to weld. I'm sure you 
can fake the crimps or stretch the top of one side of the joint 
over the anvil horn. Cut and weld for angles.
That factory stuff is expensive, but if you hang around when the 
local deep fry place goes out of business,,,,,...pf

Dave Mudge wrote:
> I agree that a heavy enough slip roll will make the pipe shapes
> (cylinders). Of course that won't crimp one end or make a seam to snap
> the two edges together. When I made mine I just used a 10 x 4 foot
> piece of ss and a brake and made my pipe square. Square handles 20
> percent volume than round of the same diameter. See this:
> http://magichammer.freeservers.com/page10.html
> 
> If you can get by with 45* in stead of 90* you will have a lot less
> trouble getting the smoke out.
> 
> dave m
> 
> 
> 
> On 9/18/06, Daniel Kretchmar <dan at irontreeworks.com> wrote:
> 
>> Greetings,
>>           I need 12" diameter chimmey pipe for my new side draft hood.  I
>> looked into menards.  They have galvanized 12"  24 gauge chimney.  I 
>> looked
>> into having some custom stuff made but it's too costly.....so the next
>> question is.....can I make it myself?
>>
>> What kind of bender would I need to make 12" diameter pipe/tubing out 
>> of 24
>> gauge stainless steel?  I want to make it in 2 ft sections. which means
>> investing in a crimper a bender.....and what about elbows?  I'll need 
>> two 90
>> degree elbows.  How will I make them?
>>
>> Advice is appreciated
>>
>> Dan
>>
>>
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