Reach 3D large and small extruder gears

These are some replacement gears for the Reach 3D printer. My extruder gears were loose and the set-screw wouldn't keep it in the right place. I designed this to eliminate the set-screw and smooth things out. It has worked really well and I never have to tighten it anymore. It takes a bit of a push to get the small gear pressed onto the stepper motor, but it holds really well once it's in place. You'll have to lay them flat in your slicer before you convert them to gcode, I'm new at this still h