Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:1622259.
This flying extruder mounting arms are designed for Micromake and FLsun's Delta 3d printers. It should work with other Delta printer with similar rollers design and dimensions that uses M5 screws as long as the threads are long enough to secure the arms.
Version 2 @ 17 June 2016: I've changed the design a little to solve some issues that i faced. Also now there are 2 versions, Versatile and Micromake. versatile is suppose to work for both FLsun and Micromake but the screw hole is slightly weaker, becareful not to tighten it too much.
I've also included the mount for your exturder which is inspired by https://www.thingiverse.com/thing:1259941 which moves the stepper motor close to the center and give you more clearance to fit the exturder parts.