Summary

It was printed at 140 micron (0.14 mm) with 20 degree support on a Zortrax M200 in Cool Grey Z-ABS after being shrunk down to 25% of actuall model size. Modeled after dreadnought lascannon, with changes for printability. Used Design Spark Mechanical to model. Second model in 2nd pic.

UPDATE: Per eliahu77's request, I have uploaded whatever files I have for the rest of the robot. Please be aware that it is going through a complete redesign (as seen to the right of the picture). The completed robot will be uploaded one of these days (when I actually finish the rest of it....). Also have uploaded a much higher resolution file for robot with skull