How to cut out a series of Helix to form channels?

I drew a couple of helix (I need 6 of them actually) that spans from the bottom of the plate to the top. I need to sweep those helixes such that they form channels that allow a fluid to flow through them. However, I tried sweeping, the preview shows me a complete sweep, but what comes out is a partial sweep. Can someone help me out on this?

2 Answers

After better understanding what you were wanting here is how I would do it.

http://youtu.be/sQYCh14N85Q

Answered with a tutorial: https://grabcad.com/tutorials/how-to-cut-out-a-series-of-helix-to-form-channels

You can use Helix with the taper option to get the same effect.

Answered with a tutorial: https://grabcad.com/tutorials/how-to-cut-out-a-series-of-helix-to-form-channels--1