Simulate a gear

[carringtonW84]

Hi !

 

I'm starting with BabylonJS: for information I know simulate the solar system and simulate a bouncing ball in a closed room.

Now I would like to simulate a simple gear with two wheels but I do not know where to start ...

 

Could you give me the method to make this simulation and what features should be used?

 

Thank you in advance and good evening 

[carringtonW84]

Hi, 

 

I'm still thinking about my problem:

  - I drew a wheel with Blender

  - I imported and duplicated this wheel with BabylonJS

 

Now the black wheel turns as you can see below:

 

http://www.hostingpics.net/viewer.php?id=49727049ss.png

 

 

But I miss two things:

  - Add a constraint on the Y axis of the red wheel

  - That the two wheels do not cross.

 

Someone to help me ?

Thanks a lot !

[julien-moreau]

According to the gears possible theories, you can apply a rotation on both gears but not a the same speed

Like :

scene.registerBeforeRender(function () {    theBigGear.rotation.y += 0.02;    theLessBigGear.rotation.y += 0.04;});

Or if you love mathematics : http://www.codecogs.com/library/engineering/theory_of_machines/the-geometry-of-gears.php ^^

[carringtonW84]

Thanks Luaacro !

But the mathematics aren't my problem... I was initially turn the two wheels but it's not a real gear

BABYLON.SceneLoader.ImportMesh("", "scenes/", "wheel4.babylon", scene, function (newMeshes) {	camera.target = newMeshes[0];	wheel1 = newMeshes[0];	wheel1.position = new BABYLON.Vector3(0, 0, 0);	wheel1.material = materialRed;	//wheel1.setPhysicsState(BABYLON.PhysicsEngine.BoxImpostor, {mass:0, friction:0.5, restitution: 4});	wheel2 = wheel1.clone("wheel2");	wheel2.position = new BABYLON.Vector3(5.3, 0, 0);	wheel2.material = materialBlack;	//wheel2.setPhysicsState(BABYLON.PhysicsEngine.BoxImpostor, {mass:0, friction:0.5, restitution: 4});		scene.registerBeforeRender(function () {		wheel1.rotate(new BABYLON.Vector3(0, 1, 0) , 0.01, BABYLON.Space.LOCAL);		//wheel2.rotate(new BABYLON.Vector3(0, 1, 0) , -0.01, BABYLON.Space.LOCAL);	});});

If you run my project, you will see that the red wheel crosses the black wheel so now I want:

  - That the two wheels are "solid" (do not cross)

  - Add a constraint on the Y axis to the black wheel

 

Thus the black wheel will turn because of the red wheel.

 

Below the link to download my project :

http://1drv.ms/1AzSZpX

 

Thank you !

[GameMonetize]

Why not creating compound meshes? To try to create a gear from boxes?

[carringtonW84]

Yes exactly, just for fun...