I build a rapid fire TNT cannon. The first lever is to activate the payload clock and the second lever activates the projectile clock. I want to automate it so that I only use one lever to start the ENTIRE process. Here's the save: https://www.dropbox.com/s/1616g0dl55ygf2e/TNT%20Cannon.zip Any suggestions?

  • Can you include a couple screenshots of how it looks?
    – Arperum
    Jun 17, 2014 at 7:35

1 Answer 1


I would recommend a delay of 39 redstone ticks (3.9 seconds), meaning nine four-tick repeaters and one three-tick repeater. The reasoning is that TNT explodes in 4 seconds:

If the block was activated by redstone or fire, the delay will be 4 seconds;

Those 39 redstone ticks activate the projectile just in time, giving the longest possible time between being launched and exploding.

  • 1
    can you explain exactly why that length of time
    – Flaunting
    Jul 17, 2014 at 6:57
  • @Flaunting Done. Jul 20, 2014 at 23:41

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