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Wheels using PH_WHEEL wobble sometimes! #230763
10/08/08 14:36
10/08/08 14:36
Joined: Apr 2008
Posts: 31
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Chrisu Offline OP
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Chrisu  Offline OP
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I'm using the PH_WHEEL-constraint for a car simulation. It works quite fine but sometimes when I steer from one side to the other (I used the steering techique of the car-example) the depending wheels wobble (spin around ignoring the set restrictions) from time to time. Also the car-example included in the Gamestudio installation has this problem - try to steer a few times from fully left to fully right and so on ...
What's the problem??

Thx in advance!

Christian.

Re: Wheels using PH_WHEEL wobble sometimes! [Re: Chrisu] #231415
10/14/08 11:44
10/14/08 11:44
Joined: Dec 2005
Posts: 490
Germany/Berlin-Velten
kasimir Offline
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kasimir  Offline
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Posts: 490
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Hi, I had the same problem before!

Don't use real Values for the weights of wheels and so on...
Better use some smaller weights!

f.e.:
i use 7 for the car-body and 12 for each wheel!

Re: Wheels using PH_WHEEL wobble sometimes! [Re: kasimir] #231537
10/15/08 10:52
10/15/08 10:52
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Chrisu Offline OP
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Chrisu  Offline OP
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I already have the wheels at 1 and the body at 3 - is that few enough?

When talking bout WEIGHT you mean MASS, right?

BTW.: Your wheels are heavier than the body??

Last edited by Chrisu; 10/15/08 10:54.
Re: Wheels using PH_WHEEL wobble sometimes! [Re: Chrisu] #231558
10/15/08 13:23
10/15/08 13:23
Joined: Dec 2005
Posts: 490
Germany/Berlin-Velten
kasimir Offline
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kasimir  Offline
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Germany/Berlin-Velten
sry yes, i mean MASS !

i think thats few enought!
But perhaps try to change, so the wheels have 3 and the body 1 units of mass...

Re: Wheels using PH_WHEEL wobble sometimes! [Re: kasimir] #231560
10/15/08 13:35
10/15/08 13:35
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Chrisu Offline OP
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Good idea! I will try that! Maybe that stabilizes the rotation because of the therefore hightened torque of the rotation. In reality it would ;-)

Cheers, Chrisu.

Re: Wheels using PH_WHEEL wobble sometimes! [Re: Chrisu] #233289
10/27/08 23:37
10/27/08 23:37
Joined: Sep 2004
Posts: 130
Italy
Alessandro Offline
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Alessandro  Offline
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Posts: 130
Italy
I still have that problem. Even if using light weight mass the problem persists.
Is there any physics engine update to avoid that?
It is a very bad effect! frown

Re: Wheels using PH_WHEEL wobble sometimes! [Re: Alessandro] #233675
10/29/08 21:19
10/29/08 21:19
Joined: Sep 2004
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Italy
Alessandro Offline
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Alessandro  Offline
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Jcl, is there any way to solve this problem? Basically physics engine built-in 3DGS is good (even if not perfect...) and easy to be used.
But I think you need to improve a little bit small but important iteams like this.

Thank you.

Re: Wheels using PH_WHEEL wobble sometimes! [Re: Alessandro] #234478
11/03/08 08:01
11/03/08 08:01
Joined: Sep 2004
Posts: 130
Italy
Alessandro Offline
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Alessandro  Offline
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*bump*

No official answer about physics engine...

Re: Wheels using PH_WHEEL wobble sometimes! [Re: Alessandro] #235499
11/07/08 23:30
11/07/08 23:30
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Germany
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fogman Offline
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Is there a way to solve this problem?
If not IŽll make a bug post at monday.


no science involved
Re: Wheels using PH_WHEEL wobble sometimes! [Re: fogman] #235759
11/09/08 21:33
11/09/08 21:33
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Chrisu Offline OP
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Chrisu  Offline OP
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I couldn't find one yet.

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