Published Nov 27th, 2012, 11/27/12 7:59 am
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4 x 4 Piston floor door retracts flush with simple staircase down. Quick response and somewhat compact.
An older design I did of a 4 x 4 Piston Door that went in the floor. Most piston doors are vertical, this one is horizontal.
An older design I did of a 4 x 4 Piston Door that went in the floor. Most piston doors are vertical, this one is horizontal.
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