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Metal Suggestions Request

kimmyk's Avatargold

I need some help with an idea that involves a metal part. Would any of you be able to give me a recommendation on the best types of metal to use? I need something strong but that can be partially compressed (it may be folded over into a U, but a very thin, compact U) and bounce back without breaking. It will be subjected to repeated and constant movement, for various lengths of time. It needs to be lightweight, and somewhat inexpensive. Any ideas? Thanks for any help!

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citizen's Avatar

Kim, not sure what you are using it for but a lot of pop up laundry bins and car sun shades have that sort of metal.

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jdowney9000's Avatargold

Spring steel?

https://en.wikipedia.org/wiki/Spring_steel

http://www.mcmaster.com/

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kimmyk's Avatargold

Thanks, guys! Lots to look through…

Jason, if I told you, I’d have to kill you! heeheehee :D

Jason Garcia
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williamj's Avatargold

Kim, from what you described it looks as if you’re looking to connect two lever type parts at a pivot point. For something like that you might want to consider torsion springs.

https://www.google.com/search?q=torrision+sprin...

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jdowney9000's Avatargold

Good point williamj!

The Wikipedia page has a good example of inline torsion.
https://en.wikipedia.org/wiki/Torsion_(mechanics)

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kimmyk's Avatargold

William, thanks for the examples. This will need to have a fairly flat profile, so a spring wouldn’t work if laid sideways. I have thought of a spring stood on it’s end, but then it would probably be thicker than needed. Any other ideas?
Jacob, there was way too much math in your link! I can’t follow that kind of thing, but thanks for whatever that was. lol

Jacob Downey
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williamj's Avatargold

Kim, the only problem with a "(it may be folded over into a U, but a very thin, compact U)* is that the would be very little spring travel and the strength of the spring would be almost negligible. Will keep this in the back of my head and if I think of anything I’ll post it here. : /

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kimmyk's Avatargold

Thanks William. I know, it’s a head scratcher…

Michael: No, it’s not! :)
I feel like I’m playing Charades!

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kimmyk's Avatargold

Holy moly! I see some that may work!

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enigmamusement's Avatargold

I believe that there should be several rows of springs attached between two wooden boards for example, a fold-up chair where the springs are attached between two boards that support the back and buttocks. As for locking the back board in place without being loose, might need 2 side handles to lock the two boards at a right angle shape

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jdowney9000's Avatargold

Kim, are you building a head scratcher that is smaller than a bread box? lol

Kim L
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jdowney9000's Avatargold

ARTHUR PEAU, If you’re describing what I think you’re describing (an idea); don’t do it in the forums (It’s considered public disclosure; and makes the idea un-patentable).

Oh, and WELCOME TO THE FORUMS! : )

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kimmyk's Avatargold

I think he was building a deck chair! lol Not sure what that was all about, but I appreciate the effort.

The closest thing I can come to with what I need would be the same technology as a bounceboard or springboard as used in gymnastics. Only really little. :)

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o2b1's Avatar

https://www.inventables.com/

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sunto's Avatar

Heat treated stainless steel is the perfect product for my MG better than spring steel I have never ever had a lift spring break

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psinventor's Avatargold

Take a look at the plastic pants hangers. There is a steel flexible clip on each side. 

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kdc's Avatar

That's a great idea, Jim.  I believe this is what you're talking about.

<img src="https://www.grand-benedicts.com/images/HANGERS1...;

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kdc's Avatar

You might want to check this place out too: http://www.hobbylinc.com/hobby-and-craft-metal-sh...

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kimmyk's Avatargold

Cool!  Thanks y'all.  :)

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