I am new to 3d printing. I have read some books and forums over the past year and finally decided to buy a FF dreamer. I am having some problems I don't know if it is me not doing something right or the printer is not setup right. I believe my left nozzle is lower than my right nozzle it seems to drag across my prints. I have leveled the bed several times finally breaking actual shim stock and I what I consider a precision level. Secondly my filament doesn't always want to stay in on location like it is failing to stick. I run pla at 215 nozzle and the bed at 70 using the filament that came with the machine. Third it seems randomly through out the print the filament will stop sticking and start gathering on the outside of the nozzle. Any help would be greatly appreciated.