Has anyone developed a simpler method to design a closed ended compression spring since Feb 2016?

katherine_williams

chrisjh777 Posts: 93Member ✭✭✭

February 2016

Compression Springs with closed ends (and with and without ground ends)  here: 

 https://cad.onshape.com/documents/56b7166be4b08910278c4fdd/w/616b75f1743012bd0b525f0a/e/ffe1b502d6c2d4824ae15d1a

I am unable to get this to work....

mahir

I did this using Parametric Curve. I don't think it's a better method, but it was an interesting exercise getting the equation right and doing this using the fewest features possible.


https://cad.onshape.com/documents/57acdfaae4b005c413ed9b6f/w/3fd585a46d3af1b3ba413c53/e/9f334d884b522c64159c0322

john_mcclary

The example you posted is how I would have done it.

What part are you having trouble with?

katherine_williams

I am having trouble with the second and third helix converting to the wire.  I can sketch a circle at the end of the first helix, but I do not know how to attach a sketch to the second and third helix to convert them to wire. 

john_mcclary

Yesterday they introduced new features

Check this out, it may be perfect for this
https://www.youtube.com/watch?v=gIwbW4I8P24

You may want to try using composite curve with the helix, and then using 1 sweep instead of boolean 3 separate sweeps

mahir

I did this using Parametric Curve. I don't think it's a better method, but it was an interesting exercise getting the equation right and doing this using the fewest features possible.


https://cad.onshape.com/documents/57acdfaae4b005c413ed9b6f/w/3fd585a46d3af1b3ba413c53/e/9f334d884b522c64159c0322

katherine_williams

Thanks,I will try it!