DDE3 Petsfang Base

This is a modification of the Petsfang base for Creality printers. This base allows it to be used with the X carriage supplied with the Barsaba Innovations (sold by Fargo 3D Printing) Direct Drive upgrade kit. Their carriage is slightly thicker so I removed the part of the base that wraps around the side.

This replaces the file `CR10_STOCK_MANUAL_BASE_V11.3.stl`. I've included the Sketchup file in case anyone wants it.