Spring-Winding Arbor Size Calculator

[kquiggle]

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