Spring-Winding Arbor Size Calculator

Hi all,

I've got quite a few random home-made tools on my website, and quite a few that I haven't got as far as writing about on the website (hopefully I'll get there soon). However, as a new forum member, I thought I'd post a new tool I've just added that others might find useful.

It's a calculator primarily intended for working out the right arbor size to use when winding a spring out of music wire on the lathe. The calculator is written entirely in javascript so runs in a web browser - nothing to install or download. If you really want to use it off-line, then Google Chrome (and probably other browsers) offer a save-as "Web Page, Complete" option and if you open the resulting file it'll work without an internet connection (as will all the other calculators on the site).

Link to the calculator: http://www.cgtk.co.uk/metalwork/reference/spring.

Dr.Al

Nice website! Feel free to add a link to it in your forum signature, so that people can check it out with every post you make.

Very nice piece of work. You may be interested in a spreadsheet I created which does similar calculations - I'll have to run some test data to see if we get similar results. My spreadsheet was based on this:

"Design and Wind Your Helical Springs by Kozo Hiraoko (Part 1 page 20 Home Shop Machinist 1987 May-Jun, part 2 page 30 Home Shop Machinist 1987 Jul-Aug) provided a method of estimating the required mandrel size for a spring based on experimental data. While the results of this method may not provide an exact solution, they do provide an acceptable approximation, or a starting point for exact results."

If you are not able to find a copy of Hiraoko's article, let me know and I may be able to help you out.

Link to my spreadsheet page here:

https://sites.google.com/site/lagado...-spring-making

Thanks for the links. I will use them next time I need to make a spring.

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Thanks Dr.Al! We've added your Spring Winding Arbor Size Calculator to our Measuring and Marking category,
as well as to your builder page: Dr.Al's Homemade Tools. Your receipt:

<div id="blocks"> <div class="block b1 pngfix"> <div class="bimg"> <div> <a href="http://www.homemadetools.net/homemade-spring-winding-arbor-size-calculator"> <img src="/uploads/215699/homemade-spring-winding-arbor-size-calculator.jpeg"/> </a> </div> </div> <div class="head pngfix"></div> <div class="left pngfix"></div> <div class="right pngfix"></div> <div class="blockover b1 pngfix"> <div class="title"> <a href="http://www.homemadetools.net/homemade-spring-winding-arbor-size-calculator">Spring Winding Arbor Size Calculator</a> <span> by <a href="http://www.homemadetools.net/builder/Dr.Al">Dr.Al</a></span> </div> <div class="tags">tags: <a href='http://www.homemadetools.net/tag/calculator'>calculator</a> </div> </div> </div> </div>
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Thanks kquiggle! We've added your Spring Turning Calculator to our Measuring and Marking category,
as well as to your builder page: kquiggle's Homemade Tools. Your receipt:

<div id="blocks"> <div class="block b1 pngfix"> <div class="bimg"> <div> <a href="http://www.homemadetools.net/homemade-spring-turning-calculator"> <img src="/uploads/215704/homemade-spring-turning-calculator.jpeg"/> </a> </div> </div> <div class="head pngfix"></div> <div class="left pngfix"></div> <div class="right pngfix"></div> <div class="blockover b1 pngfix"> <div class="title"> <a href="http://www.homemadetools.net/homemade-spring-turning-calculator">Spring Turning Calculator</a> <span> by <a href="http://www.homemadetools.net/builder/kquiggle_2">kquiggle</a></span> </div> <div class="tags">tags: <a href='http://www.homemadetools.net/tag/calculator'>calculator</a> </div> </div> </div> </div>
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Thank you Dr AL. You have many excellent projects on your website. I will definitely bookmark your site for reference.

Cheers!

Thank You Dr. AL
This is really a handy bit of information. Haven't made very many springs but I sure this will really improve things. Once again thank you.
Shelly142