Recent content by Z-inc

Extension Spring I want to use two extention springs on either side of a metal bar to propell a 5lb weight 25 -30ft. I need to determine the diameter and length of the springs that will provide enough force to propell that 5lb object. Therefore, I don't know the spring constant. I'm not sure if...

I need to determine the correct diameter and length of a combination of 4 extension springs to use in a projectile device. The springs must be able to extend to approx 3ft, and generate enough force to propel a set of objects that are 3ft in length and have an overall weight of approx 5lbs. The...