Question about gravity and hinges

blossa

Hi,

I have looked around a bit here and found many useful tips. Thanks for that!

However, I have some questions that I have not found answer to. I might have missed it because my limited knowledge of English.

I have constructed a timing belt that I want to simulate when it is moved by a motor. However, when I start the simulation the hinges becomes a bit "elastic" which makes the timing belt longer. Each hinge seems to be about 1-3px bigger when starting simulation and that effects the total lenght of the timings belt a lot when you have 5-600 hinges... Is there a way to make hinges fit 100% and to not allow space?
Is it possible to have different gravity on different object? (to be able to simulate the timing belt mentioned above, I had to lower gravity. But I have one object that I want to have normal gravity)

Thanks in advance and let me know if I need to explain better.

Best regards,
Anders