The website you can find that will give you the best information about spinal bend's is.... the one that you're on right now. Go to files and do a search for 'box with spinal bend' or something like that. Or, better yet, follow this link: [url]http://www.mcadcentral.com/proe/files/gallery.asp?action=bro wse&categoryid=49&whichpage=3 [/url]
Although reading your question a little more closely, I see you may want to double check what you're actually looking for. The spinal bend is for a living hinge (think of it as polyproylene's gift to humanity), but you mention a spring, which is created with a helical sweep. Which is it?
There'sno secret Chu, just download the box and take a look.Also refer to this article: spinal bends Icheck this one out all the time when I need to model a living hinge. Be careful though because if the geometry is fairly complex there could be problems with the bend regenerating. If you still can't figure it out, post the model and I'll take a look at it on Monday (that's my time - USA central).