circular helical sweep?
circular helical sweep?
(OP)
I was asked to model a part made b y Bal Seal engineering. The part is a spring that is wrapped into a circle with ends welded together. This has acctually completely puzzled me in terms of how to model. I have no idea where to start. I know it is going to have something to do with modifying the profile of a helical sweep i think but any help would be greatly apprietiated.
Kevin
Alcoa Fujikura lmt
Kevin
Alcoa Fujikura lmt





RE: circular helical sweep?
This may help..
htt
(you'll need a ptc support login).
The other possible way is to model the spring as is and use warp to bend it into a circle.
Ian
RE: circular helical sweep?
N=# number of loops in spring
Rmean=# Radius at center of wrapped spring
Rspr=# Radius of spring
theta=360*t
R=Rmean+Rspr*sin(360*t*N)
Z=Rrad*cos(360*t*N)
Use the curve as your sweep path and do an advanced sweep Swp Blend, VSS
Michael