In this tutorial we will learn how to stear the wheels using the toy car reactor in 3dsmax and make a donut, very simple, very quick.

First, create a Box that will be your car, some cylinders that will be your wheels and a plane that will be your surface:

Now, go to helpers, create a toy car, select your “car” as the chassis and ONLY the 2 rear wheels as wheels, then, check Spin wheels and choose velocity 50 and gain 50.

Now Create another Toy Car, Select as Wheels the front wheels, check spin wheels, velocity 10, gain 5, and TURN the car reactor in the horizontal axis so it will follow naturally the exact angle as the wheels are turned. The wheels were already turned before, but you can turn them in any moment you like, as long as you turn the second toy car too.

Now we go to the reactor menu on top and choose Open Property Editor - For the Car we choose a mass of 40, for each wheel a mass of 5 and for the plane itself a mass of 0 but dont forget to change it to “concave mesh”.

Now create a Rigib Body Collection from the reactor menu and add everything except the toy cars there.

Go to utilities (the little hammer on the top right corner and preview your animation, and after, you can render)!

toycardonut1 - Click here with the mouse right button put to save as and watch the video

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