We used to get special brass profiles (they have square tubing too) from
I'm not sure where you'd find steel or aluminum square tubes that small.
PrecisionMachinist's suggestion of local hobby stores is a good one for
Why don't you hire a freelance contract designer or engineer for
your job? Probably not very expensive to do.
Just curious; you seem to be using these three newsgroups
to do simple design for you.
And you can probably use the Thomas Register or your local
business yellow pages and the phone to locate suppliers ...
I am just asking where to buy stuff.
As for hiring a designer...
I am building lot's of different prototypes to see what works the best(for
my idea) if at all.
When I am more or less happy about a particular prototype I'll hire someone
professional to work on a
final design of a product that would be mass produced(hopefully).
So far it' still far down the road.
Anyway folks who have money don't ask questions on news groups.
I wish I had money to hire someone from the start. :)
rec.crafts.metalworking has been a very valuable resource for me.
I am very thankful to all people who gave me advise on my (sometimes stupid)
I am also taking machining class at local community college so expect my
question to be less stupid :)
You have started what looks like ~22 threads in 3 crossposted
newsgroups asking about the design of your little gizmo and it's
parts and for local suppliers over the last month or so.
While many of the comments are no doubt of great value a real
designer could probably help you a lot, IMHO, and at a lesser
total cost in the end. IF you are serious about your unknown
secret project/product/design. You might even be able to find
someone local (San Francisco IIRC) that needs a bit of side work
and will sign a confidentiality agreement.
Hey, I resemble that comment. I'm an un-professional designer (shorts,
t-shirt, and sneakers). Or at least I was for a while. Lately I've
been dressing up and going to a "real" job every day. Wingtips even.
Cole Fox Hardware on 4th Street, has small square tubing in Aluminum and Brass.
It is in the basement in a section where they have a bunch of small dimensioned
tubung, rod and sheet for hobby supplies.
Another source is Small Parts in Florida, (http://www.smallparts.com )
800-220-4242 I buy stainless steel tube from them regularly.
They have a very large selection of small tubing. They carry telescoping square
Aluminum from 3/32" to 1/4", and square telescoping Brass from 1/16" to 1/4" and
in thin and heavy walls from 1/4" to 3/4"
You could contact some large aluminum manufacturer, they exist also smaller
but are not always in the catalogs.
What is the application?
Round tubes I have found very small in applications for the medical sector.
(But also rather expensive)
Then why don't you just use a square bar. The extra weight of the inside
will not have this much influence as when applying big bar's vs. tubes.
(stifness to weight ratio ... ) this bar can be made at the size you want in
the material you like.
If you need a hole inside (cables or whatever) just drill (depending on the
length, but with these diameters, don't expect stifness from long tubes).
If all this doesn't work, try to change the problem otherwise: eliminate the
reason why it has to be so small, or the reason why it has to be square / a
If you give more details on all sizes, stifness, cost ..., then we could
maybe help better.
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