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Posted by John Martin on June 27, 2008, 10:04 am
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> On Wed, 25 Jun 2008 22:58:47 -0700 (PDT), John Martin
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> >> Anybody know where to buy Delrin square tubing or angle bar? About
> >> 3/32" to 1/8" thick.
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> >> I don't know if "angle bar" is the proper terminology, what I mean
> >> is like flat bar that is folded 90=B0 along its length (common for
> >> steel/aluminum).
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> >> Hollow round tubing probably won't work.
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> >> Thank you.
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> >Hollow round tubing "probably" won't work? =A0Given that you'll have a
> >much easier time finding round tubing than square tubing or angle,
> >wouldn't it make sense to first rule it definitively in or out?
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> >You can readily get Delrin in rounds, round tube, squares, flats or
> >sheets. =A0Even hexes. =A0Square tubing and angle may be available, but
> >are certainly not common. =A0You could, of course, mill the angle stock
> >out of solid squares.
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> >John Martin
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> Wouldn't it warp?- Hide quoted text -
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> - Show quoted text -
Might. If he needs 1" x 1/8" angle, milling from 1" square bar would
yield pieces likely to warp, in addition to being extremely wasteful.
On the other hand, milling 1/4" x 1/8" angle from 1/4" square bars
would probably be fine.
Without knowing the size wanted, and knowing the lengths he plans to
use, it's hard to say how much warping there would be. And whether
the piece would be constrained by the rest of the structure, or
whether warping would even be a problem.
He's obviously done some searching for the angle and square tube
Delrin, without success. My only point was that, before giving up on
the round tube and searching for something that may not even exist, he
ought to definitively rule it in or out.
John Martin
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