D-Bot plus E3D Titan Extruder

This is a remix of spauda01's D-Bot XY carriage.

The front carriage plate was modified to attach E3D's Titan extruder for maximum utilization of print bed area. The Titan can be attached using the long bolts that come with the kit, provided a 2mm spacer is used between the motor and extruder. Also included is a holder for a 12mm bed leveling sensor. This design approach accommodates any size extruder motor.

The back carriage plate was modified to accommodate the original cable holder for the print head and to move it away from the extruder on the front.

Also included is a cooling duct that uses the same 40x40mm fan, but provides air to two sides of the part being printed. The cooling duct uses the same attachment method as the original duct. The redesign of the cooling duct was primarily done to provide clearance on the right side of the print head when doing the bed leveling. The cooling duct will need to be printed with supports, with best results by placing the fan