Hexagongrig puzzle

Hi

i made this for http://www.thingiverse.com/thing:41740.
but can be customized in many directions.
can create any 5X5 of hexatile's.
Use openscad to modify! Custumizer is not suported.
if you had any issues let me know.

update: r5
fix
- add an esayprint option to fight printertollarance.
- remove calkulations form input matrix.
Buglist:
- double eages.

update: 4
fix
- added commments to scad file. .
- 0,0 is now createble
- cleaned main Procedure
- correctet wrong calkulation off radius