I am seeming to have a lot of trouble getting my first layer down. the filament just keeps sticking to the nozzle and failing. it also make a popping sounds when printing. I tried leveling by bed over and over but that didn't seem to help much at all. I then thought that maybe something was wrong with the Gantry so I tried tightening my gantry to the X-axis. As you could guess, that did not work either. help with this would be greatly appreciated.