Hobby King B-17 moving Gun Turrets

All these files are in inch units. Build log can be found on rcgroups at:
https://www.rcgroups.com/forums/showthread.php?2865454-Hobby-King-1875mm-B-17-FPV-camera-ship
These files are for creating pan and tilt upper and lower turrets on the Hobby King 1875mmm span B-17.

added step files for those adventurous soles! 11-19-18