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Spring advice

Posted: Wed Aug 04, 2010 3:33 pm
by irisher
For an upcoming project I had to make a magazine. The problem I have encountered is with the spring on the magazine. I am trying to get a rectangular spring that is approximately 1/2" x 1" and 12" long. Any advice on how to make or where to buy one? I have considered a constant force spring but it won't work and I would like to avoid just gluing a bunch of hardware store springs together.

Posted: Wed Aug 04, 2010 3:39 pm
by qwerty
Can't you use Two or Three springs spread out? you wouldn't have to glue that many together and can get them online or at hobby shops/hardware.

Posted: Wed Aug 04, 2010 3:41 pm
by jrrdw
I would use flat spring steel and fold it in a zigzag. You can get it from Ebay cheep.

Posted: Wed Aug 04, 2010 3:51 pm
by irisher
I just looked but I can't find anything on ebay. Any keywords to help the search?

Posted: Thu Aug 05, 2010 1:03 am
by Crna Legija
you could use this
or this product 9071K71

Posted: Thu Aug 05, 2010 10:46 am
by irisher
I don't think a torsion spring will work for a magazine spring. Do you guys think a replacement spring for a thompson 30 rounder would work?

Posted: Thu Aug 05, 2010 11:02 am
by Moonbogg
Perhaps a round spring with a rectangular plate on top?

Posted: Thu Aug 05, 2010 11:12 am
by irisher
It is a possibility but, I would need two columns of 4 for it to work and that's a lot of springs. Also in my past experience unsupported round springs cause problems at that great of length. They tend to splay out and cause jams but; it may be my only option.

Posted: Thu Aug 05, 2010 11:21 am
by jrrdw
http://www.westyorkssteel.com/spring_steel.html

http://www.springsfast.com/springs-products.htm


I found mine looking through the RC toys and hobbies section. If you dig around long enough you can find it. Above is 2 other places I found with a quick ask.com search...

Posted: Thu Aug 05, 2010 3:12 pm
by irisher
I appreciate the links but, I can't order from the UK one and the other has nothing I can't just get at my hardware store.