Originally Posted by
DaveW
You will see mix matched versions of this in various applications. Trust me though... if wire diameter does not change... neither does the spring rate... regardless of the amount of coils present... or how they are linearly implemented.
Maybe I'm not understanding your point, but if you took two 2lb/in springs and connected them end to end, they would be 2lb/2in, or 1 lb per inch since the combined spring would move twice as far with the same force. Effectively cutting the rate in half without changing the wire thickness.