Re: [CAD_CAM_EDM_DRO] Modeling a twisted blade on autocad?? PLease help!

Bobby Rastifard wrote:

> I think designing a centrifugal compressor is a bit more easier since the
> dynamics involved are a little less complex. BUT, I will have to say that
> CNC machining would require a rather expensive 5 axis machine.

You only need a 5-axis machine if you want to make the entire impeller
without any manual intervention. You could stack an indexing head on
a large rotary table on its side, and change the rotary table in steps. Possibly
even turn the indexing head in steps of 15 degrees or so, and have the
program cut the shape from only those positions. That really wouldn't
be that much harder for the usual impeller shapes.

Jon