Hexagon and Alu-Extruder Carriage for DaVinci

Just as the title says: You can now rid yourself of that awful, stock, hotend / extruder combo! I've created this part specifically for RepRapDiscount's Hexagon Hotend and Printrbot's Aluminum Extruder. Plus, with its unique "Clip-On" design, you no longer have to dismantle your entire printer to replace, maintain or modify your carriage.
It runs extremely cool - the heat sync is cool to the touch. I have now put approximately 12 hours on the carrier, 6 of which have been in PLA. I have test