FLSun Openbuilds I3 X_carriage for I3 rework

This is to replace the crappy x carriage that came with the FLSun Openbuilds I3 printer.
You can use any hot end mount that fits I3 rework. I also included a version for original I3.
Caveats: You must pull the carriage to attach hot end mount. You cannot use the screws that came with the printer to attach hot end mount; must use button head or pan head machine screws to clear rollers. I designed the holes a half mm larger but still may need to drill clean with PLA. Feel free to modify the SC