To open a door it first must be.
Space engineers piston sliding door.
Requested video on the tutorial for motor and piston doors.
The door is a very simple block and simple to operate.
However the sliding door opens entirely allowing the player to enter through the door at any angle.
Blast door blocks are mainly used in conjunction with pistons or rotors as they are able to slide into a 1 block space unlike the standard light and heavy armor blocks.
Blast doors also do not deform based upon damage.
Since the release of update 01 037 012 factions now determine whether or not other players other than the owner has access to the door block.
Space engineers pistons blast door blocks.
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Space engineers piston ramps.
Likewise pistons can be use to open close blast doors by sliding them back and forth past the normal heavy and light armor blocks making up the rest of the box rather than by rotating the blast door.
Grinding the base of an extended piston causes a massive explosion that will kill the player destroy any nearby thrusters and reactors on the parent ship.