Driving an angular constraint through zero

[Derek Burns]

I think I am missing a trick here somewhere.
Does anyone know a reliable way to drive an angular constraint through and beyond the zero degree point?
i.e. collar on a shaft at 30deg, i want to drive it 40deg CW.
using a start point of 30deg and an end point of -10deg causes it to bounce off zero and return to 10deg.

Inv8 SP1

[Anonymous]

Are you using a Directed Angular Constraint or an Undirected Angular Constraint, see attached ? Directed takes into account the direction the angle in measured. HTH Duncan "Derek Burns" wrote in message news:18698676.1081944074297.JavaMail.javamailuser@localhost... > I think I am missing a trick here somewhere. > Does anyone know a reliable way to drive an angular constraint through and beyond the zero degree point? > i.e. collar on a shaft at 30deg, i want to drive it 40deg CW. > using a start point of 30deg and an end point of -10deg causes it to bounce off zero and return to 10deg. > > Inv8 SP1

[Anonymous]

I think you want to use a directed angle constraint. I've found numerous problems with the angle constraint and the biggest is when you use (2) work planes with an angle constraint between them, for some reason directed and undirected doesn't work with work planes. Just my experience though.

[Anonymous]

What is the reason for having the choice and why is the directed angle not selected permanently? I can't think of a situation when you would want to drive your constraint in a random direction. "Duncan Anderson" wrote in message news:407d2b42_1@newsprd01... > Are you using a Directed Angular Constraint or an Undirected Angular Constraint, > see attached ? > > Directed takes into account the direction the angle in measured. > > > HTH > Duncan > > > "Derek Burns" wrote in message > news:18698676.1081944074297.JavaMail.javamailuser@localhost... > > I think I am missing a trick here somewhere. > > Does anyone know a reliable way to drive an angular constraint through and > beyond the zero degree point? > > i.e. collar on a shaft at 30deg, i want to drive it 40deg CW. > > using a start point of 30deg and an end point of -10deg causes it to bounce > off zero and return to 10deg. > > > > Inv8 SP1 > > >

[mikeh7]

Derek

I agree 100%. Does anyone know how to set the directed angle as the default. Angles were a royal pain in the past until we found (quit overlooking) the directed angle constraint.