Minecraft:Piston - Revision history

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2026-05-28T11:08:43Z

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	When a [[Minecraft:slime block]] is pushed or pulled by a piston, adjacent blocks also move with the slime block, due to its stickiness. These blocks may in turn push other blocks, not just the blocks in the line in front of the piston. For example, a slime block sitting on the ground attempts to move the ground block underneath itself, which in turn has to push additional ground blocks in the direction of motion just as if they were being pushed directly by a piston. The same occurs when a slime block is moved by another adjacent slime block. For example, a 2×2×2 cube of slime blocks may be pushed or pulled as a single unit by a piston acting on any of the blocks in the cube. A slime block adjacent to a block that cannot be moved by pistons or a block that can be broken by piston ignores that block. However, if an adjacent block could be moved, but is prevented to by the presence of an unmovable block, the slime block is prevented from moving as well and the piston does not extend.		When a [[Minecraft:slime block]] is pushed or pulled by a piston, adjacent blocks also move with the slime block, due to its stickiness. These blocks may in turn push other blocks, not just the blocks in the line in front of the piston. For example, a slime block sitting on the ground attempts to move the ground block underneath itself, which in turn has to push additional ground blocks in the direction of motion just as if they were being pushed directly by a piston. The same occurs when a slime block is moved by another adjacent slime block. For example, a 2×2×2 cube of slime blocks may be pushed or pulled as a single unit by a piston acting on any of the blocks in the cube. A slime block adjacent to a block that cannot be moved by pistons or a block that can be broken by piston ignores that block. However, if an adjacent block could be moved, but is prevented to by the presence of an unmovable block, the slime block is prevented from moving as well and the piston does not extend.

	Slime blocks' stickiness is unilateral, as such they can't be pulled by a non-[[Minecraft:sticky piston]] and they are not moved if an adjacent (non-slime) block is moved by a piston. The maximum of 12 blocks moved by a piston still applies. For example, a 2×2×3 structure of slime blocks may be pushed by a piston as long as no other movable block is adjacent to it. A piston cannot move itself via a "hook" constructed of slime blocks, but [[Minecraft:flying machines]]s can be created with multiple pistons.		Slime blocks' stickiness is unilateral, as such they can't be pulled by a non-[[Minecraft:sticky piston]] and they are not moved if an adjacent (non-slime) block is moved by a piston. The maximum of 12 blocks moved by a piston still applies. For example, a 2×2×3 structure of slime blocks may be pushed by a piston as long as no other movable block is adjacent to it. A piston cannot move itself via a "hook" constructed of slime blocks, but [[Minecraft:flying machines]] can be created with multiple pistons.

	[[Minecraft:Honey block]]s work like slime blocks when it comes to moving other blocks, however slime and honey blocks do not stick to each other. This allows, by alternating slime and honey blocks, to have redstone contraptions which make use of these sticky blocks stay side by side without interfering with one another.		[[Minecraft:Honey block]]s work like slime blocks when it comes to moving other blocks, however slime and honey blocks do not stick to each other. This allows, by alternating slime and honey blocks, to have redstone contraptions which make use of these sticky blocks stay side by side without interfering with one another.

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	{{IN\|be}}, blocks that require a support (such as levers) can be placed on the back or sides of a piston without being destroyed when that piston extends. {{IN\|je}}, on the other hand, the majority of blocks that require a support are only safe to place on the back of pistons.		{{IN\|be}}, blocks that require a support (such as levers) can be placed on the back or sides of a piston without being destroyed when that piston extends. {{IN\|je}}, on the other hand, the majority of blocks that require a support are only safe to place on the back of pistons.

			{{IN\|be}}, despite not being a conductive block, comparators can read the fullness of containers through pistons.
	<!--=== Basic behavior ===		<!--=== Basic behavior ===
	* Extension: Pushes up to 12 blocks in front of the head.		* Extension: Pushes up to 12 blocks in front of the head.
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	When a piston that has a [[Minecraft:redstone torch]] attached to it is powered, the redstone torch turns off, and when said piston is depowered, the redstone torch turns back on: this property is called ''[[Minecraft:soft inversion]]''.<ref>{{bug\|MCPE-17909\|\|\|WF}}</ref><ref>"Explaining soft inversion: the Minecraft Bedrock Redstone bug that won't get fixed" – https://www.youtube.com/watch?v=zUgKXTsLOA0</ref> Since soft inversion works even if the piston is being powered indirectly through a block, it can be used to toggle the state of a redstone torch from farther away compared to other powering methods. It's still possible to take advantage of soft inversion even if the piston cannot extend or retract.		When a piston that has a [[Minecraft:redstone torch]] attached to it is powered, the redstone torch turns off, and when said piston is depowered, the redstone torch turns back on: this property is called ''[[Minecraft:soft inversion]]''.<ref>{{bug\|MCPE-17909\|\|\|WF}}</ref><ref>"Explaining soft inversion: the Minecraft Bedrock Redstone bug that won't get fixed" – https://www.youtube.com/watch?v=zUgKXTsLOA0</ref> Since soft inversion works even if the piston is being powered indirectly through a block, it can be used to toggle the state of a redstone torch from farther away compared to other powering methods. It's still possible to take advantage of soft inversion even if the piston cannot extend or retract.

	~~=== Interaction with comparators ===~~
	~~{{exclusive\|bedrock\|section=1}}~~
	~~Despite not being a conductive block, comparators can read the fullness of containers through pistons.~~

	~~=== Limitations ===~~
	~~<!-- [[Minecraft:Push reaction]] redirects here. -->~~
	~~Pistons cannot push:~~
	* Blocks listed as such in the table below.
	* Blocks into the [[Minecraft:void]] or above the [[Minecraft:build limit]].
	* More than 12 blocks at once.
	* {{IN\|je}}, blocks beyond the [[Minecraft:world border]].

	~~If the requirements for a block to be pushed are not met, the piston will not extend.~~

	~~{{:Piston/Table}}~~
	=== Slime and honey blocks ===		=== Slime and honey blocks ===
	{{Schematic		{{Schematic
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	When a [[Minecraft:slime block]] is pushed or pulled by a piston, adjacent blocks also move with the slime block, due to its stickiness. These blocks may in turn push other blocks, not just the blocks in the line in front of the piston. For example, a slime block sitting on the ground attempts to move the ground block underneath itself, which in turn has to push additional ground blocks in the direction of motion just as if they were being pushed directly by a piston. The same occurs when a slime block is moved by another adjacent slime block. For example, a 2×2×2 cube of slime blocks may be pushed or pulled as a single unit by a piston acting on any of the blocks in the cube. A slime block adjacent to a block that cannot be moved by pistons or a block that can be broken by piston ignores that block. However, if an adjacent block could be moved, but is prevented to by the presence of an unmovable block, the slime block is prevented from moving as well and the piston does not extend.		When a [[Minecraft:slime block]] is pushed or pulled by a piston, adjacent blocks also move with the slime block, due to its stickiness. These blocks may in turn push other blocks, not just the blocks in the line in front of the piston. For example, a slime block sitting on the ground attempts to move the ground block underneath itself, which in turn has to push additional ground blocks in the direction of motion just as if they were being pushed directly by a piston. The same occurs when a slime block is moved by another adjacent slime block. For example, a 2×2×2 cube of slime blocks may be pushed or pulled as a single unit by a piston acting on any of the blocks in the cube. A slime block adjacent to a block that cannot be moved by pistons or a block that can be broken by piston ignores that block. However, if an adjacent block could be moved, but is prevented to by the presence of an unmovable block, the slime block is prevented from moving as well and the piston does not extend.

	Slime blocks' stickiness is unilateral, as such they can't be pulled by a non-[[Minecraft:sticky piston]] and they are not moved if an adjacent (non-slime) block is moved by a piston. The maximum of 12 blocks moved by a piston still applies. For example, a 2×2×3 structure of slime blocks may be pushed by a piston as long as no other movable block is adjacent to it. A piston cannot move itself via a "hook" constructed of slime blocks, but ~~self-propelled contraptions can be created with multiple pistons. For more informations, see the article~~ [[Minecraft:~~Tutorial:Flying~~ machines]].		Slime blocks' stickiness is unilateral, as such they can't be pulled by a non-[[Minecraft:sticky piston]] and they are not moved if an adjacent (non-slime) block is moved by a piston. The maximum of 12 blocks moved by a piston still applies. For example, a 2×2×3 structure of slime blocks may be pushed by a piston as long as no other movable block is adjacent to it. A piston cannot move itself via a "hook" constructed of slime blocks, but [[Minecraft:flying machines]]s can be created with multiple pistons.

	[[Minecraft:Honey block]]s work like slime blocks when it comes to moving other blocks, however honey ~~blocks and slime~~ blocks do not stick to each other. This allows, by alternating slime ~~blocks~~ and honey blocks, to have redstone contraptions which make use of these sticky blocks stay side by side without interfering with one another.		[[Minecraft:Honey block]]s work like slime blocks when it comes to moving other blocks, however slime and honey blocks do not stick to each other. This allows, by alternating slime and honey blocks, to have redstone contraptions which make use of these sticky blocks stay side by side without interfering with one another.

	[[Minecraft:Glazed terracotta]] and the [[Minecraft:heavy core]]{{only\|bedrock\|short=1}} ~~have an interesting property: they ''~~do not'' stick to adjacent slime ~~blocks~~ or honey blocks, even though they can be pushed by pistons.		[[Minecraft:Glazed terracotta]] and the [[Minecraft:heavy core]]{{only\|bedrock\|short=1}} do not stick to adjacent slime or honey blocks, even though they can be pushed by pistons.

	=== Sculk detection ===		=== Sculk detection ===
	Pistons emit vibrations detectable by [[Minecraft:sculk sensor]]s. A [[Minecraft:calibrated sculk sensor]] tuned to signal strength '''10''' detects piston retraction; strength '''11''' detects extension; strength '''12''' detects a block broken by a piston.		Pistons emit vibrations detectable by [[Minecraft:sculk sensor]]s. A [[Minecraft:calibrated sculk sensor]] tuned to signal strength '''10''' detects piston retraction; strength '''11''' detects extension; strength '''12''' detects a block broken by a piston.

			== Limitations ==
			<!-- [[Minecraft:Push reaction]] redirects here. -->
			Pistons cannot push:
			* Blocks listed as such in the table below.
			* Blocks into the [[Minecraft:void]] or above the [[Minecraft:build limit]].
			* More than 12 blocks at once.
			* {{IN\|je}}, blocks beyond the [[Minecraft:world border]].

			If the requirements for a block to be pushed are not met, the piston will not extend.

			{{:Piston/Table}}

	== Technical components ==		== Technical components ==

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	</ref>		</ref>
	* When toggled between on and off rapidly with a gravity affected block (such as sand) above it, a piston can eventually break the block, which can be picked up as a resource. However, gravel broken this way never drops flint.		* When toggled between on and off rapidly with a gravity affected block (such as sand) above it, a piston can eventually break the block, which can be picked up as a resource. However, gravel broken this way never drops flint.
	* Carpet can be placed on the piston ~~extension~~ block, and ~~remains even if it is replaced with~~ a ~~solid~~ block ~~using {{cmd\|setblock}}~~.		* Carpet can be placed on the [[Minecraft:moving piston\|moving piston block]], and does not break after moving piston block converts to a non-air block.

	== Gallery ==		== Gallery ==

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	{{for\|the sticky version\|Sticky Piston}}		{{for\|the sticky version\|Sticky Piston}}
			{{Earth hatnote\|type=block}}
	{{Infobox block		{{Infobox block
	\| image = Piston.gif		\| image = Piston.gif

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	{{Schematic		{{Schematic
	\|caption=Piston A may extend because the slime block ignores the adjacent obsidian. Piston B may not extend because the diamond block is prevented from moving by the obsidian, as such the slime block also refuses to move.		\|caption=Piston A may extend because the slime block ignores the adjacent obsidian. Piston B may not extend because the diamond block is prevented from moving by the obsidian, as such the slime block also refuses to move.
			\|clear=right
	\|pi-e+A\|SL\|\|\|pi-e+B\|SL\|\|-		\|pi-e+A\|SL\|\|\|pi-e+B\|SL\|\|-
	\|\|obsidian\|\|\|\|MB\|obsidian		\|\|obsidian\|\|\|\|MB\|obsidian

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	\|Headless pistons do not break upon receiving a [[Minecraft:block update]] anymore.}}		\|Headless pistons do not break upon receiving a [[Minecraft:block update]] anymore.}}
	\|{{HistoryLine\|java}}		\|{{HistoryLine\|java}}
	\|{{HistoryLine\|\|1.2.4\|dev=release\|~~[[Minecraft:~~Spruce ~~planks]]~~, ~~[[Minecraft:~~birch ~~planks]]~~, and [[Minecraft:~~jungle~~ planks]] can now be used to craft pistons.}}		\|{{HistoryLine\|\|1.2.4\|dev=release\|Spruce, birch, and jungle [[Minecraft:planks]] can now be used to craft pistons.}}
	\|{{HistoryLine\|\|1.3.1\|dev=12w26a\|Pistons now schedule extensions and retractions rather than executing them as soon as they are updated.}}		\|{{HistoryLine\|\|1.3.1\|dev=12w26a\|Pistons now schedule extensions and retractions rather than executing them as soon as they are updated.}}
	\|{{HistoryLine\|\|1.5\|dev=13w10a\|Pistons changing their {{code\|extended}} state from {{code\|false}} to {{code\|true}} is now the ''last'' step of (the start of) the extension process, rather then the first. This change affects some redstone contraptions.}}		\|{{HistoryLine\|\|1.5\|dev=13w10a\|Pistons changing their {{code\|extended}} state from {{code\|false}} to {{code\|true}} is now the ''last'' step of (the start of) the extension process, rather then the first. This change affects some redstone contraptions.}}
	\|{{HistoryLine\|\|1.7.2\|dev=1.7.1\|~~[[Minecraft:~~Acacia ~~planks]]~~ and [[Minecraft:~~dark oak~~ planks]] can now be used to craft pistons.}}		\|{{HistoryLine\|\|1.7.2\|dev=1.7.1\|Acacia and dark oak [[Minecraft:planks]] can now be used to craft pistons.}}
	\|{{HistoryLine\|\|1.8\|dev=14w17a\|[[File:Piston (U) JE2.png\|32px]] [[File:Piston (D) JE2.png\|32px]] [[File:Headless Piston (U) JE2.png\|32px]] [[File:Headless Piston (D) JE2.png\|32px]] The models for pistons when facing up and down have been changed.}}		\|{{HistoryLine\|\|1.8\|dev=14w17a\|[[File:Piston (U) JE2.png\|32px]] [[File:Piston (D) JE2.png\|32px]] [[File:Headless Piston (U) JE2.png\|32px]] [[File:Headless Piston (D) JE2.png\|32px]] The models for pistons when facing up and down have been changed.}}
	\|{{HistoryLine\|\|\|dev=14w18a\|[[Minecraft:Slime block]]s now push and pull blocks adjacent when connected to sticky pistons.		\|{{HistoryLine\|\|\|dev=14w18a\|[[Minecraft:Slime block]]s now push and pull blocks adjacent when connected to sticky pistons.
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	\|[[Minecraft:Pickaxe]]s are now the tool for breaking pistons.		\|[[Minecraft:Pickaxe]]s are now the tool for breaking pistons.
	\|Pistons no longer pop off redstone components placed on the back when retracting.		\|Pistons no longer pop off redstone components placed on the back when retracting.
	\|~~[[Minecraft:~~Crimson ~~planks]]~~ and [[Minecraft:~~warped~~ planks]] can now be used to craft pistons.}}		\|Crimson and warped [[Minecraft:planks]] can now be used to craft pistons.}}
	\|{{HistoryLine\|\|1.17\|dev=20w45a\|Particles now appear if a block is broken by a piston.}}		\|{{HistoryLine\|\|1.17\|dev=20w45a\|Particles now appear if a block is broken by a piston.}}
	\|{{HistoryLine\|\|1.19\|dev=22w11a\|[[Minecraft:Mangrove planks]] can now be used to craft pistons.}}		\|{{HistoryLine\|\|1.19\|dev=22w11a\|[[Minecraft:Mangrove planks]] can now be used to craft pistons.}}