| 120 | In order to print a working nozzle is required, with proper temperature settings for this nozzle (185C) and feed rates (500). One way is to use manual codes to allow debugging. First set the temperature of the nozzle [http://marlinfw.org/docs/gcode/M104.html M104 S185] next ensure the extruder coordinates are relative avoiding math additions of feeding new PLA. Issue [http://marlinfw.org/docs/gcode/M083.html M83]. Next wait till the temperature is right, by checking it manually [http://marlinfw.org/docs/gcode/M105.html M105] a few times. Set the extruder head to a free location (G0 X0 Y0 Z150) Feeding goes by [http://marlinfw.org/docs/gcode/G0.html G0 F500 E100]. Check for clean flow, in this case it should not stick to the nozzle and look clean and smooth. Smoke is bad, because it means the PLA is boiling inside. Too cold will cause the PLA too stall while feeding. Feedrate (F factor) will determine overall printing speed of the printer, sometimes setting the temperature a bit higher could potentially make a faster feedrate, yet this really depends on the nozzle construction. |