This is a scalable engine that can be used to generate n pulses, then stops. I'm using it as part of a larger project. The filled stack (column A) of minecart is pushed by a piston on a track that leads to column B. While in transit, every cart triggers a detector track which loops back a signal to the piston, ushering the next minecart in the pile. This design was inspired by Sethbling's minecart storage system ( http://www.youtube.com/watch?v=9osaA68xMts ).
Another button reverses the whole process by pushing the carts into an independant track that leads back to column A.
There probably is a alternative way using transistor circuit elements but I'm not good enough in electronics to delve into this now. This mechanic variant will have to do for now.
Music: "La petite fleur" from legendary Amiga chiptune composer Radix.
@Mu0n There is a much simpler way to replace it (a lot less cool), just make a "circular" (really a square) of sand/glass cubes driven by 4 pistons, 1 per corner, using the glass as a circuit stopper. I'm working on it and will post a video, but the concept can be found in other minecraft videos.
Mu0n 5 months ago
Unfortunately, the stack of minecarts have a buggy behavior. I believe it happens when no one is connected to our server running a SMP game. If I disconnect and reconnect in a matter of seconds, everything is stable and right. If I leave a few hours and come back, the minecarts meld into the ground. You can recuperate them just fine if you dig enough, but they won't be part of the piles anymore.
Mu0n 5 months ago