This area gives you specific warnings respecting your spring design and provides you with tips on how you can make adjustments so that you generate a reliable spring design. You are also able to see our force chart if you happen to need to make your spring stronger or weaker. For example; for more force you would have to either make the outer diameter smaller, reduce the amount of coils, increase the wire diameter, or make the free length longer to make more travel. On the other hand, for less force, you would do the exact opposite; make the outer diameter larger, increase the amount of coils, make the wire diameter smaller, or make the free length shorter thus giving you less travel to your desired loaded height. The warnings and tips/adjustments given are the following:
Warning: Your index is too small (below 4) which makes it difficult to manufacture.
Tip: In order to increase your index, you will need to increase your outer diameter or decrease your wire diameter.
Warning: Your index is too large (above 15).
Tip: In order to increase your index you will need to decrease your outer diameter or increase your wire diameter.
Warning: Your inputs have generated invalid or negative answers.
Tip: Please adjust your inputs accordingly
Warning: Hook length 1 + Hook length 2 is greater than or equal to your length inside hooks.
Tip: Your combined hook length cannot exceed your length inside hooks. To fix this problem please increase the length inside hooks, decrease your wire diameter, decrease your outer diameter, or if you are using extended hooks please decrease your hook lengths.
Warning: Hooks are high stressed.
Tip: The stress that is being put on the hooks of this spring exceeds the maximum psi limits of the wire. The hooks may break and fatigue due to stretching the spring past the maximum safe travel considering hook stress value. To fix this problem, here are some options: change the wire type to a stronger material, increase the wire diameter, or increase the outer diameter of the spring.
Warning: The force in L2 is less than the force in L1.
Tip: Your L2 must be greater than your L1. The formula for load is: rate * distance traveled = load. Thus if your distance for L2 is greater than L1, your lost at L2 must be greater.
Warning: Your load exceeds the max safe load.
Tip: If you need to reach a load that takes you beyond the max load, you need to change your input values. Here are some options: increase the number of coils, increase the outer diameter, or decrease the wire diameter.