Merge pull request #1 from cdsteinkuehler/master

Added initial version of README.PRINTING
I made the lettering for the arms a bit easier to print.
Merge branch 'master' of https://github.com/NicholasSeward/ConceptFORGE
Update README.PRINTING and add example Slic3r configuration
Signed-off-by: Charles Steinkuehler <charles@steinkuehler.net>