Edit 07/25/2014: Please see the linked thread for information on Wrap issues using some equation curves. Another equation curve approximation error
A not so quick video on the technique of creating springs without fussing with the helical sweep and multiple pitch setting.
I found it difficult to create a good representation of a closed end spring, and also the closed and ground version.
This video shows how to make a closed and ground spring and how to quickly tweak it to the exact shape you want to show.
There are several techniques throughout this video, so don't miss the little detail...
- How to define the initial sketch finding the core diameter vs the known ID or OD.
- How to manage the known parameter. In this case, the OD, height, and the wire dia. were all known's.
- Using the Coordinate system in the Wrap Section. You might even opt for sketching in the section starting at the bottom of the cylinder.
- Using Pi*D*No. of Turns to manage the overall swap.
- Remembering to save the hidden layers.
- Tweaking the Wrap Section to maximize accuracy.
Of course, if you make a lot of springs, you want to use more relations to automate this process somewhat.
Hope you find this video useful. Please -like- this document if you do.