LASER-gun is dead all hail to the LaBr-gun
after some time (a long time - sorry) we finally finished the first LaBr-gun of HomeLESS project for 3D printer. You can download all files for 3D print from thingiverse (http://www.thingiverse.com/thing:1068132).
EDIT: Added List of parts. The full Assembly guide will be released soon :D.