Customizable Maze

You can create a maze with simple numbers:
1 = left,
2 = top,
4 = right,
8 = bottom,

If you want to create a full closed tile its: 1+2+4+8 = 15
Bottom and Left Corner is 1 + 8 = 9 = 09

Openscad needs a simple to parse string, so you had to write numbers with 2 digets ("09"). A new line is startet with "br" for break. Every Line had to be in the same length! Be sure to end your string with a br!

a simple box is: mazestring="03,06,br,09,12,br";

Every Tile has its own walls.so if you make a [4,1] there is one big wall with double wall thickness between the tiles. with [0,1] you make a wall with normal wallthickness.
(You can see the effect in my testmaze in the top left corner. The straight wall at second Position to the bottom has a little edge in the middle. this is because i switched between a richt wall in first osition to left wall in second position)

Inspired by
http://www.thingiverse.com/thing:24604
But not a real derivate.