Wheel shaking

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Wheel shaking

Postby TheWonkits » Thu Jul 22, 2010 9:15 pm

I really doubt this hasn't been brought up before, as it's pretty major, but I searched and scanned and couldn't find anything about it... So....

Whenever I attach a motor to a circle, and build say, a car, if I set the motor speed to anything over about 115 RPM, the wheels start bouncing off of the ground uncontrollably.

It makes my vehicles look very silly. No idea why it happens. Even with suspension, a perfectly circular wheel on a perfectly flat plane, will bounce and ricochet like it were a square. I don't know if Algodoo simplifies shapes at high speeds to relieve the processing load or something, but it makes building any kind of vehicle that travels over 40kph impossible.
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Re: Wheel shaking

Postby Sonic » Thu Jul 22, 2010 11:46 pm

It's not a bug. It's physics.
I do stuff and break things. You know how it is.
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Re: Wheel shaking

Postby Versieon » Fri Jul 23, 2010 1:37 am

?

I tryed this, and had no problems even at 1600 RMP

My guess is that it isn't actually a circle you are using, it is a polygon, and at high speed it is bugging out. Try transforming to circle in the menu.

Also try checking the frequency, that could cause problems
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Re: Wheel shaking

Postby TheWonkits » Fri Jul 23, 2010 5:41 am

Nope, it's a circle. It has the markings to prove it. Also Sonic, that isn't physics. How many cars do you see bouncing down the road every time they hit 30mph? To make sure, I disabled friction and restitution, so there's no possible reason for the wheel to bounce, and it still bounced. I'm thoroughly confused.
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Re: Wheel shaking

Postby Sonic » Fri Jul 23, 2010 7:45 am

The reason it shakes should be because of the high torque.
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Re: Wheel shaking

Postby Kilinich » Fri Jul 23, 2010 9:18 am

Just give scene.
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Re: Wheel shaking

Postby Mystery » Fri Jul 23, 2010 9:38 am

TheWonkits wrote:Nope, it's a circle. It has the markings to prove it. Also Sonic, that isn't physics. How many cars do you see bouncing down the road every time they hit 30mph? To make sure, I disabled friction and restitution, so there's no possible reason for the wheel to bounce, and it still bounced. I'm thoroughly confused.

How many cars have perfectly solid wheels?
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Re: Wheel shaking

Postby Sniperkasa » Fri Jul 23, 2010 5:18 pm

Mystery wrote:
TheWonkits wrote:Nope, it's a circle. It has the markings to prove it. Also Sonic, that isn't physics. How many cars do you see bouncing down the road every time they hit 30mph? To make sure, I disabled friction and restitution, so there's no possible reason for the wheel to bounce, and it still bounced. I'm thoroughly confused.

How many cars have perfectly solid wheels?

Touché.. Though I never had this problem (unless traveling at like 800m/s...)
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