one: the red track
two: the purple cart that runs on the red track
three: the orange motor that pushes the cart out.
All three can be found in the rippin rocket roller coaster set. Ill be doing this instructible in three parts. the trigger, the cage, and the barrel.Enjoy.
Step 1: The Trigger
Pic 1:the stopper thingy,build.
pic 2: another pic of pic 1.
pic 3:rod that connects trigger to the cage,build.
pic 5:another pic of pic 4.
pic 6:a third pic.
pic 7:add the rod to the trigger
pic 8:add the stopper to the trigger
pic 9: another pic of pic 8