Overview Ithaca Generator has 3 robust workhorse printers, each with different advantages. There is a Benchy on each printer so you can see differences, and they're taped to the top of their respective printer. Each Benchy took 1.5 hours and is sized accordingly so you can get an idea.
Prusa MK2S: small 10 x 8 x 8 inch (250 x 210 x 210 mm) build volume, slowest, but very accurate. Prints PLA and PETG. Use an SD card to print.
Xinkebot: largest 16 x 16 x 20 inch (400 x 400 x 500 mm) build volume. Relatively fast, but that's because it uses a larger nozzle so it's lower rez, and prints will have minor flaws, but if you're going to do post-processing anyway, doesn't matter. Prints PLA and PETG. Can print flexibles with special setup. Use an SD card to print.
RailCore: large 12 x 12 x 13 inch (300 x 300 x 320 mm) build volume. Very fast and accurate. Robust workhorse. Mainly prints PETG. Also good for more experimental filaments such as those filled with carbon fiber. Can print PLA with different nozzle. Use the web interface to upload and print.
IMPORTANT: Don't use hairspray any more. Don't use any sticking aid on the Prusa or the Railcore. They both have special beds that will be very sticky when hot. Magigoo should be used on the Xinkebot glass bed.
Simplify 3D Slicer Software. Use this to make your G-Code from your STL file.
Where to find STL files for printing: Thingiverse http://www.thingiverse.com