Flashforge Bowden conversion (Q905134)

This is a mount that allows the Flashforge Creator (Replicator Dual clone) to use a Bowden extruder. I'm attempting to do this in an attempt to isolate the steppers from the aluminium cooling block due to their heat generation, and allow a step-down gear train to be used for more torque to overcome stubborn PLA jams. The right clamp also includes an end-stop pusher to replace the motor sidewall which pushes the end-stop in the original configuration. The model is also parametric, to allow for different aluminium block mounting hole positions. Modify options.scad as needed. The Bowden clamp is inspired by http://www.thingiverse.com/thing:3775, but modified to allow for shorter screws, and to have a shorter mounting screw distance. Sources are maintained at https://github.com/hyperair/ffbowden.