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The Breakroom => Resources => Topic started by: PTsideshow on February 12, 2010, 06:37:46 AM

Title: torsion springs, extension springs, compression springs, and finishing info
Post by: PTsideshow on February 12, 2010, 06:37:46 AM

 Here is information on making other kinds of springs that members on this board may find useful (http://home.earthlink.net/~bazillion/setup.html)

Title: Re: torsion springs, extension springs, compression springs, and finishing info
Post by: Bernd on February 12, 2010, 09:40:48 AM

I'd like to add to Glenn's resources of spring makeing.

Brownell's Gunsmith Kinks (http://www.brownells.com/.aspx/cid=21/k=/t=P/mfg=/Products/Books) book I and book II has spring making info in them.

These books may be gun related and not your cup of tea but they do contain many tips for the home shop machinist.

Bernd

Title: Re: torsion springs, extension springs, compression springs, and finishing info
Post by: PTsideshow on February 12, 2010, 10:36:37 AM

They also have a dvd on making flat springs that is also worth the money,it is for a gun part. But I have used it for other things. Brownell's  catalog and website has a lot of great stuff for the home shop person whether you are into firearms or not.
I will second his suggestion about them.

Title: Re: torsion springs, extension springs, compression springs, and finishing info
Post by: PlanetSpring on September 07, 2010, 05:41:22 PM

Here are some calculators as well, that may help in the design process:

Compression Spring Calculator (http://"http://planetspring.com/pages/compression-spring-calculator-coil-calculator.php")

Extension Spring Calculator (http://"http://planetspring.com/pages/extension-spring-calculator-extension-spring-calculation.php")

Torsion Spring Calculator (http://"http://planetspring.com/pages/torsion-spring-calculator-torsion-spring-calculation.php")

Springs are my thing!  :smart:

Title: Re: torsion springs, extension springs, compression springs, and finishing info
Post by: Lew_Merrick_PE on September 08, 2010, 01:46:55 AM

Planet Spring,

Your links are munged.  Try:

Compression Spring Calculator (http://www.planetspring.com/pages/compression-spring-calculator-coil-calculator.php)
Extension Spring Calculator (http://www.planetspring.com/pages/extension-spring-calculator-extension-spring-calculation.php)
Torsion Spring Calculator (http://www.planetspring.com/pages/torsion-spring-calculator-torsion-spring-calculation.php)

Also, when I did a quick check of compression springs, (A) you listed the spring constant (k) in psi rather than lb/in and (B) you list a "maximum possible load" (in lb/in rather than lb) that would compress the spring to solid height (not a good thing) rather than the normally recommended "maximum allowable load."  My copy of the Spring Design Handbook is packed away or I would provide the nominal compensation values for maximum allowable loads.

Title: Re: torsion springs, extension springs, compression springs, and finishing info
Post by: PlanetSpring on September 08, 2010, 01:42:01 PM

Thank you for the info, Lew!!

 :doh:

I'm working on changing that :)