Algodoo

motor is good but dont make density like 1000, this not giving anything

The density's at 1000 to make the engine spin faster, if you need to put this in a car, just make sure to adjust springs and the density of the wheels, to make up for it. Take a look at my buggy scene if you don't understand Thanks for commenting

Very cool! But i would rather call this an rotary ball spawn engine=) The density not only increases speed but also power and is needed in almost every algodoo engine nice work man

Very nice, can i ask, how does it work?

It isn't a ball spawn engine, it's a collision.
The balls change collideSet and collide with a box with that collision group.
Yo can make it acceleratable, changing the two balls that change collideSet position.

If you don't understand me, that's not your fault . Just reverse-engineer one of my engines, or Kilinich's.

Anyways, good!

Thanks for the kind words

True, Draw an conclusion to fast:p

Wow, it's almost similar to Kilinich's