First test of some upgrades I have been modeling for the Printrbot LC, based on http://www.thingiverse.com/thing:55845 Thanks to Adam for the inventor source files.
It managed to work out enough on the first try to be able to print something. The quality is roughly about the same but this is still just the first pass.
Last pic comparison Left=Previous Right=With Upgrades
Lots to fix still.