Gearshift and Clutch

Unlike a set of cogwheels, neither block changes the ratio: 32 RPM in, 32 RPM out, one way or the other. The stress of the machines after them is still paid by the source, as if the casing were not there at all.

Any source touching the casing will do: a lever placed on it, dust pointing at it, a comparator, a link receiver. The strength does not matter, 1 is enough. The switch is almost instant: the rotation network is recomputed as soon as the signal changes.

The effect only applies to the side opposite the source. If rotation comes in from the other end, the other half is the one that stops or flips. So a Gearshift between two sources is a bad idea: the two networks would try to spin opposite ways and the game would break a block.

A Mechanical Piston behind a Gearshift extends or retracts with a lever: the simplest door in Create. A Clutch at the head of a line shuts a whole factory down at once. With a Redstone Link, the lever can sit at the far end of your base.

Dust running past the casing without touching it does not power it: check that it points at the block. For a movement that must stop by itself after an exact angle or distance, the tool is the Sequenced Gearshift, not a lever.

Each half shaft follows, at every moment, the speed computed by our simulation: you see the output half stop, or spin back the other way, at the exact moment the lever flips. Only the source speed comes from the scene; the rest of the network is recomputed with Create's rules.

On Create France, a Clutch at the head of each workshop lets you stop one machine to fix or change it without shutting down the whole base. Label each lever so everyone knows what it stops.