I used this a loooong time ago and came across it again today by chance... http://www.martindalecenter.com/Calcula ... ECH-SPRING regards, Mark
Thanks for that post. I have been looking for a handy list of online calculators for a sanity check if nothing else. Take care.
Here's another link I used extensively for engineering calculations. http://www.engineersedge.com/calculators.htm