Making money implies that the cost of the facility cost (rent), design time, equipment, power used, material used, your set up time, machine run time, post print clean up time, packing and shipping time, customer communication time etc etc, are all covered, plus another 40% profit on top of that for each item you make..
You may get paid something for items you make but never "Make money" especially if you are just a hobby user with one machine. It is like art work.. you can paint very nice pictures that take you days to finish but people only want to spend $20 on them...