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Category, ,
Theme
AuthorBoobMax2442
Format.schematic
SizeMedium

This is a compact door mechanism that functions as a combination lock. It is designed to prevent spam and ensures that the correct sequence of inputs is followed. The lock automatically resets if the four-digit combination is not entered correctly or if an incorrect key is pressed at any point during the sequence. For example, if the sequence is 1-3-4-9, pressing any other button will trigger a reset. If the correct numbers are pressed but in the wrong order, a reset button must be used to try again.

The numerical input style resembles a keypad with numbers arranged as: 1 2 3, 4 5 6, 7 8 9. A sample combination could be 1, 5, 9, 7, followed by an enter press. A helpful tip for remembering a combination is to visualize it as an angled ‘greater than’ sign.

Materials Required

8 block types · 389 blocks · 15×9×14

Stone Bricks200
Redstone Wire109
Redstone Torch42
Repeater22
Stone Button10
Smooth Stone Slab3
Oak Wall Sign2
Redstone Lamp1

Before You Build

This build uses 389 blocks across 8 block types – about 7 stacks in total, which fits inside a single shulker box. It occupies 15×14 blocks of ground and stands 9 blocks tall.

What to bring first

Stone Bricks – 200 3 stacks + 8
Redstone Wire – 109 1 stack + 45
Redstone Torch – 42
Repeater – 22
Stone Button – 10

Survival or creative?

Every block in this build can be obtained in survival, so it can be built by hand without creative mode or commands.

Moving parts

It includes Redstone Lamp, Redstone Torch, Redstone Wire, Repeater, so check the mechanism still works after pasting – redstone state and item-container contents do not always survive a paste.

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