Mission 699
Fix the Time Machine: The Redstone Rescue
Badge: Machine Fixer
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Fix three broken time machine parts with redstone and unlock the way home.
The time machine is smoking. Three parts are broken and the way home is locked. Can you fix it in time?
- New skill Building an AND gate and a repeater chain
- Level 7 · Time Travellers
- Difficulty Intermediate
- Mode Creative
- Time 45–60 min
- Ages 13+
What you’ll build
The time machine is broken in three places. Light up the power core, rebuild the countdown so each lamp passes power to the next, then build a code lock with an AND gate that opens only when the right levers are on. Then step through!
Finish line: Your time machine's core glows, the countdown works and the code lock opens the way home.
Bonus challenge: Let someone try to crack your code. Count their tries. Then make it harder: add 2 more decoys and see how many codes there are now.
You’ll need
- Redstone dust
- Redstone torches
- Repeaters
- Levers
- Redstone lamps
- An iron door
You choose
- My time machine's name
- My secret code (which levers ON)
- Part I fix first
Stuck?
- Lock not opening? The output torch goes on the front side of the middle block, not on top.
- Countdown stuck? Check every repeater's arrow points away from the lever.
- Iron doors only open with redstone, so wire the lock's output right to the door.
For grown-ups
Get this mission
This mission is in Mission Pack 69. Each printable has the full steps, a Plan & Log page and a parent page.
Print one mission at a time. You never need to print everything.
Played on Minecraft Bedrock on iPad. Buttons can differ on other devices and versions.