Upload & Sell: On
Not an LCD of course but things like CF doors, other plastic parts.
The plastic material is not good enough. The way you use the 3D printer is to make a "plug" and then from that you make a female mold and then from that you make the real part.
The printer is good for proof of concept prototype that are not strong and for making the part that later gets a mold pulled from it. But they make very poor quality camera parts, not even for a toy camera
If you really wanted to mass produce a plastic door, first buy a real battery door, coat it with wax then epoxy over the wax, pop out the door and now you have an epoxy mold with which you can make 100 rip-off parts. OK there are a few more step to make a three part epoxy mold but basically you start the the finished product or lacking that make one with the 3D printer. But the parts you sell come from the mold, not the printer.