Airtight grid connections
A collection of 4 large grid blocks to allow grids to be connected, move and at the same time preserve air tightness.
Airtight Hinge: a hinge with a corridor down the center to allow crew to pass through. Size: 3x3x3
Airtight Rotor: a rotor where the outside edge spins around a stationary corridor space. Part 1: 3x3x1 with an empty center, outside part 5x5x1
Airtight Piston: it’s a piston with a corridor down the middle. 3x3x3, extended 3x3x13.
Airtight Connector: It’s an oversized connector with a space in the middle. 3x3x1 doughnut. If two of the connectors are connected a rubber seal is inflated (technically ensuring the outside edge of the blocks are treated as sealed)