| Gallery, Projects and General > How do I?? |
| how can i make a spring |
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| Lew_Merrick_PE:
Pic, A coil spring is a rather complex device. The (active coil) length of the spring is a torsion bar -- so you are dealing with polar geometry deflections, stresses, and strains rather than linear ones. This is then complicated by the curvature of the coils (represented by the Wahl's Correction Factor). The actual allowable stress in a coil spring is further modified by the material's Bulk Modulus. The worst part is that I have a 1950's vintage (something like) Designer's Guild to Springs I used during my apprenticeship. It is buried in the 100-150 unpacked boxes of my technical library. The spring manufacturer's association used to give such things out for free to encourage people to use springs. Now they charge more than $150 for that (now) proprietary intellectual property! |
| AdeV:
Tutorial here: http://madmodder.net/index.php/topic,2734 and here: http://madmodder.net/index.php/topic,2747 |
| bob ward:
A lot of good info in Spring Design and Manufacture, #19 in the Workshop Practice Series |
| Lykle:
Hemingway Kits make a nice little spring winder. http://www.hemingwaykits.com/acatalog/Universal_Spring_Winder.html It comes with various pieces of wire to make springs. I know I want one. Lykle |
| Lew_Merrick_PE:
I took a minute and I believe this is a pretty nice site... http://www.planetspring.com/pages/compression-spring-calculator-coil-calculator.php |
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