[ODE] Best way to achieve this effect

Salik Syed ssyed at stanford.edu
Fri Oct 26 21:43:02 MST 2007

Yes I'm aware that constraints can be set to have a springiness to them 
using the ERP (?CFM) parameters.

I did read your entire message, and the method you outlined is not what 
I'm looking for, I don't want the
skateboards trucks to turn simply by a motor or outside force, because 
this is not how a real skateboard
works. I want to be able to place a body on the deck and when I shift 
that body the deck should
tilt causing the trucks to turn.In order to do this some kind of joint 
is necessary between the deck and
the truck in order to cause the deck tilt motion to cause the truck turn 
 But i'm not sure what that should be.
I also thought perhaps a single "link" body with a ball joint connecting 
to the truck and another
ball joint connected to the deck??? I don't know if this would work 
correctly because I would still need
to make the hinge joint stiff (so that the truck needs alot of force in 
order to actually rotate)  and I'm not
sure how to do this

I think people may not understand exactly how the skateboard works?

Jon Watte (ODE) wrote:
> Salik Syed wrote:
>> What I would like is that the trucks are very hard to spin and only 
>> turn when
>> a significant force is applied on one  side of the duck to make them 
>> turn.
>> What is the best way to achieve this effect?  Sort of like a spring 
>> that stretches every time the
>> deck tilts or the trucks turn, so that a signifcant force is 
>> necessary for either to happen.
> Did you search for "spring" in the documentation?
> If so, what don't you understand about the various explanations?
> What else have you already tried, so we don't have to worry about 
> things that didn't work for you?
> And did you read the ENTIRE message I sent you on this subject 
> previously?
> Hint: It actually answers this question, too.
> Cheers,
>             / h+

www.saliksyed.com <http://www.saliksyed.com>

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