Thanks so much! I've got it to work with that script!

Hello again! Thanks for the help! I had done in another way that works to, it´s a bowling lane (with pins and everything ofcourse), but it is scripted, not mechanical. So therefor I need to delete the pins/balls that have been used to copy/emitter new ones, otherwise there will be too much geometry in the model. And when the model should erase the pins/balls I've think that it only should erase objects with the name pin (or ball) but, I've figured out another way on the problem. But thank's alot for the help, I be back if I got more problems. The skechyphysics is awesome!

u should only ever delete objects created in simulation, eg emitted objects

Paint the group with the default material in the places you want the color to change. There are probably a few ways to script this, but one is: @m = Sketchup.active_model.materials.add "My material" group.material = @m @m.color="Red" "Red" could be any color name, and you do need to use the quotes. Or you can use an r,g,b value... [100,100,100], for example, will give a shade of gray. The name of the material, in this case, "My material", is of no real consequence, as SU will stick a number on the end if the name is already being used. You should be able to change the color during the sim with: @m.color = ... In ontick, or whatever. You can also do other stuff with the material, like use a texture, or make it transparent... see The API for more info. Good luck!

Okay! Thanks!

I don't think it would crash. It would probably get slow if you have too many tho.

I would do it by using a variable instead of frame. That way you could control when it plays and be able to reset it when done. In an OnTick #only increase "myframe" if "xxx" >0 if(getVar("xxx")>0);setVar("myframe",getVar("myframe")+1);end #if "myframe" is greater than 100 then reset and stop. if(getVar("myframe")>100);setVar("myframe,0);setVar("xxx",0);end Then in the servo controller use getVar("myframe") instead of frame.