Gear

Gears are items capable of transmitting redstone power when placed, and work vertically.

## Obtaining

Putting 8 Iron Nuggets and 1 Redstone Dust in a Crafting Table will create 4 Gears.

## Usage

Gears are used in redstone circuits by placing it on the sides of blocks to transmit redstone power vertically, and can connect directly to Redstone Dust. It can also be used to power redstone components.

### Redstone component

When placed in the world, Gears become 'gear blocks', which can transmit redstone power.

### Placement

Gears can be placed on opaque blocks as well as glowstone, glass, stairs, and hoppers, but not on the top or bottom of the block. It can also be placed on some transparent blocks. It cannot be placed suspended in midair, even with commands, which is not unintentional.

Gears configures themselves to point toward adjacent redstone power components and transmission component connection points. Gears also configures themselves to point toward adjacent redstone wire/gear one block higher or lower – unless there is a solid opaque block above the lower redstone wire/gear.

If there is only one such adjacent redstone component, Gears configures themselves into a line pointing both at the neighbor and away from it. If there are two or more such adjacent components, Gears connects them as needed.

When there are no adjacent components, a single Gear can provide power in all four directions.

When Gears are reconfigured after placement, it does not update other redstone components around it of the change unless that reconfiguration also includes a change in power level or another component provides an update. This can create situations where a mechanism component remains activated when it shouldn't, or vice versa, until it receives an update from something else – a "feature" of gears and redstone that can be used to make a block update detector.

Gears can transmit power, which can be used to operate mechanism components (doors, pistons, redstone lamps, etc.). Gears can be "powered" by a number of methods:

* from an adjacent power component or a strongly-powered block
* from the output of a redstone repeater or redstone comparator
* from adjacent redstone wire. The powering dust can be a level higher or lower, but with restrictions:
	+ Gears can be powered by other gears or redstone dust that is one level lower, or on an opaque block one level higher.
	+ The block "between" the two dust blocks must be air or transparent. A solid block there "cuts" the connection between the higher and lower dust.

The "power level" of Gears can vary from 0 to 15. Most power components power-up adjacent gears to power level 15, but a few (daylight sensors, trapped chests, and weighted pressure plates) may create a lower power level. Redstone repeaters output power level 15 (when turned on), but redstone comparators may output a lower power level.

Like redstone wire, gears can transmit power up to 15 blocks.

Power level drops by 1 for every block of gears it crosses. Thus, gears can transmit power for no more than 15 blocks. To go further, the power level must be re-strengthened – typically with a redstone repeater.

Gears cannot transmit power to a block, unlike redstone dust.

When Gears are unpowered, they appear dark gray. When powered, it becomes light gray at power level 15, fading to darker shades with decreasing power. Powered gears also produce red "dust" particles.

While Gears always provide power to the directions it points into, it can still point into directions in which it cannot give power.

## See Also

* Items
* Redstone Dust