Re: [ATM] bending square aluminium tube

[Dale Eason <atmpob@yahoo.com>]

Ok,
So, if I want to bend a 28 inch diameter out of 1 inch
square tubing, what size diameter should I make the
wheels and how far apart are they on the stationary
piece?  I'm thinking of make altitude bearings for my
ultralight 16" dob.

However this is starting to sound a lot harder than
what Jan posted using the fixed radius disk and
concave form.

Second question does this method bent up to the edge
of the stock or do you have to cut part of it off
after bending.

Dale Eason

--- Bob May <bobmay@nethere.com> wrote:

> You really need to make the rollers from metal
> rather than wood.  Wood will
> work but you need to do some good precision work as
> the three wheel method
> needs to hold the positions of the three wheels
> precisely.  Any slop or
> flexibility will make the end product kinky as the
> forces aren't consistent.
> Also, for small diameter bends, you need to do the
> work in stages til you
> get where you need it.
> Bob May
> bobmay@nethere.com
> http://nav.to/bobmay
> http://bobmay.astronomy.net
> 
> _______________________________________________
> ATM mailing list http://www.atmlist.net/
> 


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