C9 Christmas Light Cap

This was remixed in the following ways:Cap size (height) reduced from 2.6cm to 1.4cm to minimize the amount of filament needed and print time.Replaced rounded bevel with 2mm straight bevel to reduce filament needed.The threads have been cropped on edges for a better fit in the c9 housing.Removed material at top of screw threads so that it would fully screw into housing.