Bought a HICTOP prusa i3 and had all sorts of problems including a bad control board.finally got the replacement, but it wouldn't print. I changed the print temperature from 210 to 215 and it actually started pushing material through the nozzle. Still not right though. Should I push the temp to 220? I have pics of a 20mm that looks like swiss cheese but can't figure out how to attach from phone. Thanks!