Re: [ATM] bending square aluminium tube

["matt" <mariusrf@bellsouth.net>]

I think what's important in the original wooden blocks+vise method is not
shown (or maybe I just missed it) , namely the curve/groove shape  that's
cut inside the wood, for example how long is the groove, is it circuar or
another shape, what sagitta with respect to the tube square size ? I could
easily envision  ending up with just a crooked dented piece of tubing if
this cutout is not done in the right shape and size for a given tube .
 Also a brief description of how to actually bend the parts.

best regards,
matt tudor

----- Original Message -----
From: "Dale Eason" <atmpob@yahoo.com>
To: <atm@atmlist.net>
Sent: Tuesday, January 04, 2005 10:57 PM
Subject: Re: [ATM] bending square aluminium tube


> I tried that method once a failed miserably.  I could
> not machine the wheels.  I could not hold their axles
> against the forces.  All I got was tubing with a bunch
> of dents from the three wheels.  Would you care to
> give a more detailed description or a picture as to
> how one would make it with only a saw and a router.
> Since that would be all that is needed to make the one
> pictured.
>
> Dale Eason
>
> --- Bob May <bobmay@nethere.com> wrote:
>
> > Next time you may want to investigate the 3 wheel
> > type bender for the
> > tubing.  Two stationary wheels on one side and a
> > movable one on the other
> > side all with a form on the edge to hole the tubing
> > in place.   The thing
> > that is nice about this method is that it can be
> > done slowly if so desired
> > and get to the diameter that is desired by repeated
> > runs through the set of
> > dies or wheels.
> > Bob May
> > bobmay@nethere.com
> > http://nav.to/bobmay
> > http://bobmay.astronomy.net
> >
> > _______________________________________________
> > ATM mailing list http://www.atmlist.net/
> >
>
>
>
>
>
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