Hey All,

I've been working on the torsion and tension spring additions to this script and I've finished with the torsion springs. I tried to make the leg definitions as customizable as possible to make them intuitive. If anyone has other types of definitions they would like to see I will look into adding them to an upcoming update. Also, the compression springs haven't been changed other than the wording of some end styles which are now the same as the names used on McMaster and other manufacturer sites.

You can find the new version here: Spring Creator

Torsion Spring Features:

• Four leg end styles (blind, axis, normal to face, tangent to face)
• Three extra definitions for the second leg to define its position from the first leg (angle between, central axis, independent legs)
• Use any of the original spring wire cross-sections
• Define the height of the spring using the number of coils

Defining a torsion spring starts the same as defining a compression spring. Select a point, torsion spring shape, one of the wire cross-sections, and then define the spring's dimensions.

With the placement and the dimensions of the spring set, you can change the wire end style to define the second leg given a specific angle between, or select a central axis for both legs to be angled towards. You can even define both legs independently using any end style type.

Of course, you can still copy McMaster springs to make them configurable:

Another thing I wanted to show off was the fact that you can create a customizable variable to control the angle of the legs or the length of a compression spring. There's a small glimpse of the potential in the previous gif but one example of the power of these variables can be seen in the plier example below:

The ends of the legs can only be straight so if you want to add any bends you will need to add those after making the torsion spring. Regardless, they can still be fully parameterized with an angle variable. Also, I found defining both legs independently by axis from a sketch makes alignment in an assembly easier. Compression springs can also have a variable change their length.

I've also added a new informational naming system for the springs adding the diameter and height of the springs to the part name. For torsion springs the angle between the legs is also added. If this interferes with the part naming convention you or your organization uses you can always overwrite the name.

Torsion spring limitations:

• The legs extend perpendicular to the axis of the spring so they do not represent the actual leg angle you will see in real life.
• The height of the spring changes slightly as you change the leg angle because the number of coils has to change.
• There are no new mate connectors added to the legs so you have to add your own.
• Only straight legs can be created so any bends or other complex geometry needs to be created outside the feature script.

You can find the new version here: Spring Creator

I'm still planning to finish this code by adding tension springs so you can make any type of spring you want with one feature script. I've also looked into the Spring Calculator or Advanced Spring Design programs and agree with @S1mon that adding a full spring designer to OnShape would be extremely useful. Of course, I'm just a solo developer so I don't have the time or expertise to incorporate features of that nature into this code. The goal of this code hasn't changed and I hope everyone finds it useful to make configurable compression and torsion springs.