The original is printed with the plug prongs building vertically on Z axis. This creates weak plugs; mine tend to break and get stuck. This one is rotated 90* to ensure plug strength and longevity. This updated design now overengineered to my liking.This now needs printed with 1 additional shell (2 total). Infill can be light 6% - 12%, as 2 shells pretty much fill it up.CHANGES Redesigned and overengineered for maximum strength for both prongs and plate. A rib on the plate is now present to prevent z-build breakage as well as for a 'pinch' handle to help with removal. Finger nail groves are now present on both top and bottom of plate to also help with removal from socket. Also, the width has been chopped slightly to allow installation side-by-side, for instance, on a surge protector/multiple outlet. Finally, the prongs are built upon a single-layer platform (between them), to ensure they stick on platform throughout the build. Simply take a razor blade and easily slice the single-layer platform away.Builds great with 4x and 6x multiplier (tested on TOM HBP).