Spring Design is rarely as simple as plugging variables into a formula.
If you would like to go it on your own, you can go to: http://www.smihq.org/public/software/asd6.html
Click on "View ASD Demo and Download Free Trial"
You will be re-directed to a Universal Technical Systems Software web page where you can view a demo and ultimately download a free trial version of the software.
We can save you a lot of time and frustration by listening to your requirements, asking a few questions and (using our version of the software) provide you with a design with all the blanks filled in.
From there, we can either refine the design further or possibly provide prototypes for your evaluation. These prototypes will be low cost (and sometimes no cost) and all we ask is an opportunity to quote on the job.
If you are looking for design assistance, please fill out the following form: