User:Immibis/3DOP

This page contains ideas for an obsidian 3D printer (Current maximum size: width 10, length 10, height unlimited) It could be expanded to 20x20xN by using four sets of bridges on each of the top levels.

The top has two layers of bridges.

First layer

############     # wall
#----------#     - east/west retracting bridge
#----------#     . floor
#----------#
#----------####
#----------..<-- magma source
#----------####
#----------#
#----------#
#----------#
#----------#
############

Second layer

############     # wall
#||||||||||#     | north/south retracting bridge
#||||||||||#
#||||||||||#
#||||||||||#
#||||||||||#
#||||||||||#
#||||||||||#
#||||||||||#
#||||||||||#
#||||||||||#
############

In both of these layers, each bridge is connected to a different lever. To print a tile on the current layer, the bridges corresponding to the appropriate row and column are retracted, then a small amount of magma is let in.

Subsequent layers:

############
#          #
#          #
#          #
#          #
#          #
#          ###
#          X <-- water input
#          ###
#          #
#          #
############

Bottom layer:

############
#          #
#          #
#          #
#          ###
#          X --> water drain
#          ###
#          X <-- water input
#          ###
#          #
#          #
############

Operation:

 For each layer, repeat the following:
   Flood the layer with water
   For each tile, repeat the following:
     Retract the bridges corresponding to the desired row and column.
     Let in a small amount of magma.
     Unretract the bridges once obsidian forms.
 Close all water inputs
 Open the water drain