Don Johnson's Website

My Personal 'Stuff'


Spring Design/Checking Program
I  provide a Spring calculator program for your convienience, and trust that it may prove helpful in checking designs.  The sample screen shown below is for Compression springs, but designs for Tension and Torsion springs can also be checked.

Please note that references to 'No of Coils' require the number of ACTIVE coils to be entered, rather than the total. Usually, on a compression spring, half to three-quarters of a coil can be considered inactive at each end if the ends are closed. Thus for a closed spring with a total of 10 coils, the 'No of  Coils' should be entered as 8.5


To use the program,it must be downloaded to your PC.  After clicking on the springs icon below, save the file springs.exe, and then click on the 'Open' button to display the program on your screen



It is an .exe file, so you will probably have to grant permission for it to run, but I can assure you that my version - sized at 152 Kb - does NOT contain anything nasty!


NOTE: If a message indicating that file 'VB40032.DLL' is necessary to run the spring program, click here, save this file and move it into your C:\WINDOWS directory.  Then re-open the spring program.