19x19 base remixed (for 6x6 print beds)

This is a remix of http://www.thingiverse.com/thing:801279. I just took the 19x19 base (16 holes) and cut it into quarters (using Netfabb Basic) so I could print on my printrbot SM. Added some holes/pegs (with 123D Design) so the pieces will fit together. Just print it four times, clean them up (may need to clean up the holes so the pegs will fit nice and snug). There's also some extra holes for a small screw in case they are too loose and need to be held together better. Note these screw holes