demultiplexer

most recent versions of all logics so far are at https://www.thingiverse.com/thing:2829196
I recommend downloading from there.

8 bit De-multiplexer stage, not yet connected to the memory address register or the memory logic gates. the open scad file also contains several other redesigned components that greatly simplifies connections and clocking mechanisms.

http://nextbigfuture.com/2016/04/molecular-mechanical-computer-design.html

http://www.imm.org/Reports/rep046.pdf

the scad file also contains the other components that have been uploaded previously.
t.
Eventually i intend to parameterize the file and make it animatable but my current skill level with open scad is rudimentary at best.