I used a RepRap-derived Athena II (https://www.appropedia.org/AthenaII) printer and 1.75 mm PLA filament. Since these parts do not require a detailed finish, I used a 0.4 mm layer height with 25% infill (grid-shaped). Print times and required filament for each print are below: Bottom: 3.25 hours, 135 grams Middle: 4 hours, 167 grams Top: 8.5 hours, 304 grams Total: 15.75 hours ,606 grams ($12.12 at $20/kg)