OpenForge 2.0 and OpenLock
A roleplaying terrain feature/accessory to depict a spiral staircase going up and down. The first step is a trip hazard, as OpenForge has thicker floors, the first tread is a little high, but serves to provide that roleplaying feel for a set of stairs going down (grinds against the OCD mind). Went overboard, but now your players have a choice to make, and have to have a rearguard.
Merged and modified xloud's spiral staircase (up and down) for OpenForge to the OpenForge 2.0/OpenLock 4.0 standards. Resized to 25.4x50.8 x50.8. Includes both 1" thick base wall A and B to link the standard E or EA tiles...well to a degree. The DOWN aspect prevents a true A and B attachment from the front, but is true on the backside of the tile. Will need an EA tile to attach the front.
Note! have not printed to verify compatibility as of 02/16/17.
Kudos to Printablescenery
OpenLock 4.0 http://www.thingiverse.com/thing:1833963
Special Note of thanks to xloud - Original Spiral Stair