Exactly what the title says, how do you spin gears with a trigger? Also, is it possible to change your publishing name?
Set the gear object itself (ungroup the whole gear contraption and then tap the gear itself) to physics off under its properties. Then use your trigger to turn on physics for the gear object.
you turn the gear's default 'Physics on' off. when you play it it is not moving. Now, connect a trigger to a physics on or off function. Now, connect it (it should be a green line not a red one) to the gear.
Also, I'm posting a new thread for something different. If you want to keep helping me, please try and find it!
And for your second question, no. It is not possible to change your publishing name. You would have to delete all your data and create a new account i you wanted a new name.