D-Bot Core-XY 3D Printer

Decided on building this printer because of the very detailed build instructions and complete shopping list. This is a very accurate printer and so far very reliable. Consistently outperforms my Makerbot replicator 2. Some of the changes I made for increased reliability:
- Added heatsinks and cooling fans to xy steppers and extruder.
- Added SD card and interface
- Increased volume of electronics enclosure for better airflow
- Replaced plastic quick connect for bowden extruder with a more robust and stable brass one.
I would advise anyone building this printer to go for the larger print bed size (300x300), and to install an AC heating pad. A 12 volt DC bed has a real hard time getting to and maintaining 100 degrees C.