I've had my printer for almost two to three months. I waited days for a reply from tech support, I've not gotten past the stage of turning the printer on, HotEnds disappear, not showing temps, max temp errors, or min temp errors, and nothing heats up, bed temp errors. I paid for a dual with the octopi, and I've had four other 3D printers, and I've modded my Robo 3D R1 Plus, and replaced parts like crazy, so I'm not completely an idiot when it comes to putting things together. But I've had replacement thermistors, Replacement Rumba, checked my wires, I don't know how many times, I even asked if I could just be sent a built BigBox single, and send the dual extruder with octopi back and let them keep the extra money and I've been waiting around a week and still no response from BigBox.... I just need a working printer..