Maze generator, pure OpenSCAD

This is a random maze generator, implemented by pure OpenSCAD. You may change the following parameters to generate a maze, different every time:

- `rows`
- `columns`
- `wall_thickness`
- `wall_height`
- `block_width`

Find all my mazes in the collection "[maze generators](http://www.thingiverse.com/JustinSDK/collections/maze-generator)".