[ODE] Actuated arm get stuck into static entities

[Megan Fox]

What kind of FMax do you have set on that servo?  Is it possible it's
too high, so that it can't handle touchy sorts of interactions (that
is - it GOES where you tell it, no if's and's or but's, leading to you
not controlling it 100% accurately, slipping just slightly through a
surface, then explosions from there)?

-Megan Fox

On 6/14/05, Tanguy Fautre <tanguy.fautre at spaceapplications.com> wrote:
> 
> Megan Fox wrote:
> > If you drop a normal dynamic entity (like a box) into the world, does
> > it interact properly with the other static objects?
> >
> > Can you, for instance, knock a box around the world with your servo
> > arm, so long as you don't touch the static world?
> >
> > -Megan Fox
> >
> 
> 
> Dynamic (non-actuated) entities seems to interact properly with other
> static objects.
> 
> But I tried the servo arm with a dynamic box as you suggested, and
> somtimes the arm gets stuck into the box (even sometimes when the box is
> not touching anything else!)
> 
> I took some screenshots to illustrate the "stuck" situations I
> identified so far (the red dots shows the contact joints):
> 
> http://users.telenet.be/tfautre/arm_stuck_01.png
> http://users.telenet.be/tfautre/arm_stuck_02.png
> http://users.telenet.be/tfautre/arm_stuck_03.png
> 
> 
> Note: I already tried enabling or disabling dWorldSetAutoDisableFlag().
> But I'm explicitly enabling the arm body when actuating it anyway.
> 
> Regards,
> 
> Tanguy
> 
> 
> > On 6/13/05, Tanguy Fautre <tanguy.fautre at spaceapplications.com> wrote:
> >
> >>Hello,
> >>
> >>
> >>I have a single arm that is attached to the world by a hinge.
> >>This hinge is motorized and controlled by a servo-motor (inspired by
> >>http://ode.org/cgi-bin/wiki.pl?ServoSimulation).
> >>
> >>But whenever the arm touches a collision plane (or any other static
> >>entities), the arm gets stuck and won't move anymore no matter what I do
> >>with the motor (like if the collision joint won't let go of it) .
> >>
> >>What could I possibly be doing wrong? Any solution?
> >>
> >>
> >>Regards,
> >>
> >>Tanguy
>