Linear and Radial Chassis

Linear Chassis placed side by side, on the same axis, form a group: when a contraption takes one of them, all of them follow. Here a bearing spins the whole group at once.

A chassis of another type, or turned to another axis, does not join the group. That is the whole point of the Secondary Linear Chassis: placed against a linear one, it stays apart, for two contraptions side by side.

A Linear Chassis has two ends that can become sticky: right-click a face with a slimeball (or glue) and it turns green. A second click glues the opposite face too.

To remove the slime, right-click the face while sneaking, with an empty hand. Handy when a contraption grabs one block too many.

A sticky face drags the blocks lined up ahead of it, up to its range. The line ends at the first gap, replaceable block (grass, water) or brittle block such as a torch.

With a Wrench you pick a chassis' exact range: 8 blocks by default, 1 to 16. Hold Ctrl to set every chassis of the group at once.

The sides of a Linear Chassis are not sticky. To hang blocks there, use Super Glue. Mixing chassis and glue, any shape becomes possible.

A few chassis in the heart of a building are often enough to carry all of it, with a bearing, a piston or a gantry.

Radial Chassis join up when stacked on the same axis, in a column. Like linear ones, the whole column goes as soon as one of them is taken.

On a radial chassis, the four side faces are the ones that get sticky. A first click with slime glues one face, a second one glues all the others; sneak and use a bare hand to take it off.

A block against a sticky face drags every block it touches on the same layer, within a radius set with a wrench (8 by default). Ideal for a turntable deck or a wheel.

A block that nothing connects to a sticky face stays put, even inside the radius. Blocks cut off by a gap do not go.