Archimedes Screw

[Britt007]

Hi,

Can someone point me in the right direction on how to make an archimedes screw please, do I need a .js file?
I also like to be able to change the angle of the blades from the centre to the outside edge.
Like in the attached picture, thanks.

What I'm trying to do is have water flowing through a tube with the screw inside, smaller than the diameter of the tube so the screw forces the water out from the centre to the walls of the tube as it flows over the screw.

Kevin.

 

[Helmut]

* Archimedes
* You just need a couple of helices
* Dump those into a Loft creator
* Add an axis
* Rotate

* There is a Java script for helicoids, but you do not really need it.

 

[Helmut]

* To change the angle of the blades:
* just shift the outer (or inner) helix up (or down)
* these are all parametric objects, so you can fiddle any of the parameters as required