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Loft does not follow centreline

Question asked by Tjaart Du Plessis on Jul 10, 2015
Latest reply on Jul 11, 2015 by Paul Salvador

I am designing a conical extruder screw and use the loft feature as the flight start profile and flight end profile differ. (As opposed to doing a sweep)

 

I have drawn a tapering helix as a centreline, and made sure that both profiles are pierced by the helix.  The helix is set as centreline for the loft.

 

The loft does not, however, follow the centreline?  See picture below:  Any ideas why this is happening?

 

Conical Screw Left 2.JPG

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