USB Webcam Support for K8200/3drag printer

This replaces the foot of the USB webcam with LEDs sold here: http://www.ebay.com/itm/190429028863 with this piece, which can be used to attach the webcam to the axis that carries the extruder on the K8200 printer.

Note: This piece should be printed with support material (e.g., as automatically generated by Slic3r).