[TheForge] Fw: Fw: Circle Roller

Fri Feb 12 15:06:41 EST 2010

Peter has a better discription of what I was suggesting.  Only difference is 
with the flypress I am using the press to provide the bending force.  By 
using the "L" shaped top tool the ring can be larger than the press opening 
and close completely on itself.  The stock wants to be a little long to 
start with since the ends will tend to be straight and can be cut off to 
make a rounder ring.

Dave

--------------------------------------------------
From: "Peter Fels & Phoebe Palmer" <artgawk at thegrid.net>
Sent: Friday, February 12, 2010 2:35 PM
To: "Blacksmithing List Sponsored by ABANA" <theforge at mailman.qth.net>
Subject: Re: [TheForge] Fw:  Circle Roller

> The minimalist approach is to weld 2 parallel pipes or bars to a fixed
> plate, next to one another. The work is extended at right angles between
> them and bent a tiddle, extended a bit more and bent..and so on. The
> smaller the extended increments, the smoother the ring. Works for sheet 
> too.
>
> David E. Smucker wrote:
>> Dave,  Don't know if you have a flypress but for a limited number of 
>> rings
>> you can do them in the flypress by using an offset tool that brings the
>> press force in front of the press.  Kind of like a heavy "L" shaped top 
>> tool
>> working into a pair of bottom dies or rounds.  Not a Hossfeld by any 
>> means
>> but works for 1 off rings if you already have the press.  I have never 
>> done
>> this with a hydraulic arbor press but don't know why that wouldn't work 
>> too.
>>
>> Dave
>>
>> --------------------------------------------------
>> From: "Dave Mudge" <dave at magichammer.net>
>> Sent: Friday, February 12, 2010 12:41 AM
>> To: "Blacksmithing List Sponsored by ABANA" <theforge at mailman.qth.net>
>> Subject: Re: [TheForge] Circle Roller
>>
>>> Thanks Ries,
>>> This is for occasional use in a one man shop doing ornamental.
>>> Can't afford a Hossfeld. Looking for plans to build a roller.
>>> I have use of an old tire bender (roller) from 1879. hand crank,
>>> maximum capacity is about 3/4" x 6" the "easy" way and 1" round
>>> or square bar. However the smallest circle that it will roll is about
>>> 18" or 20".
>>> dave
>>>
>>> On Thu, Feb 11, 2010 at 10:59 PM, ries <ries at riesniemi.com> wrote:
>>>> Dave-
>>>> What is "heavy duty"?
>>>> do you need to roll 1/2" round?
>>>> or maybe 1/2" x 4" flat bar the hard way?
>>>> How big of circles?
>>>>
>>>> Generally, hand cranked 3 roll machines top out at around 1/4" x 2"
>>>> flat bar the easy way, or 1/2" round.
>>>> Above that,you usually want a motor.
>>>>
>>>> I find that I can make a LOT of circles with my hossfeld bender. I use
>>>> the angle iron, flange out, die set, and I can get accurate,
>>>> repeatable circles from about 6" OD up to 30 feet or so.
>>>> The dies are standard sizes- 8", 10", 12", 14", 16", and so on, up to
>>>> 72", but by making marks on the steel, and bending on the mark, I can
>>>> get pretty much any size in between, and sizes much bigger than 72".
>>>> I have bent literally thousands of circles this way, in angle, solid
>>>> square and round, square and rectangular tubing, flat bar the easy way
>>>> and the hard way, and much more.
>>>>
>>>> ries
>>>>
>>>>
>>>>
>>>> On Feb 11, 2010, at 8:13 PM, Dave Mudge wrote:
>>>>
>>>> Good evening,
>>>> Does anyone have plans or links to plans for a heavy duty circle
>>>> bender (roller)?
>>>> Does anyone have a tire bender (roller) for sale?
>>>>
>>>> dave mudge
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>>>> Ries Niemi
>>>> Industrial Artist
>>>> http://www.riesniemi.com/
>>>>
>>>>
>>>>
>>>>
>>>>
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