Curved axis for helical sweeps ??

[DANKO]

Hey -

Im having trouble using anything apart from a straight construction line for the axis of revolution of a helical sweep -

the objective is to create a double helix that follows a circular axis of revolution - how can i select and use a curve or sketched curve as the axis ???

please help - time is of the essence

cheers Dan
Edited by: DANKO

 

[jabbadeus]

Try creating a helical sweep using a normal straight line axis and profile, then create a circular sketch reflecting how you want to bend the helical sweep, and then create a spinal bend.

 

[proengineertips]

take a look on this file. hopes you can understand from the features.



(here's the trick..)

redefine the 1st variable section sweep feature, go to sketch, then relation






2006-09-29_092034_curve_spring.prt.zip

 

[DANKO]

Thank you both Jabbadeus and Mr Proengineertips - you have actually together saved my life -

cheerio Dan