Unless your printer is perfectly level, the doors may start to swing shut when you have opened them. This modification keeps the doors wide open by the simple expedient of adding a small bevel on the bearing surfaces of the door hinge and cabinet hinge, so that when the doors are open they hang a few millimeters lower.
The parts are beveled at the top and bottom so that you can use the same part on both doors.
Of course, there is no concern with the doors staying closed--the magnets handle that.
The part can be printed using the same guidelines as for the original:
Pop the hex nuts out of the old part using the same hex key you use to remove the screws.
In order to save the old part, I slid a Stanley knife in the gap to contact the hinge pin at a right-angle and used the blade to work the pin out. You could, of course, just clip the cabinet-side part in half to access the original pins.
This initial version uses a 15-degree angle on the bearing surfaces.
I have included a version that uses a 25-degree angle and seems to work better for me.
The author remixed this model.