3D printers melt and extrude hundreds or thousands of grams of material over their lifetime. Over time there are quite a few problems that can make it less than smooth to extrude. There are various reasons for nozzle clogging, generally speaking, it is due to the accumulation of residue in the material during the printing process, or due to the expansion of the material in the duct, all of which lead to the material not being extruded smoothly. So how to solve this kind of problem?
The following is a few types of common problems and solutions for your reference
The model can't stick to the hot bed
Solution 1: Adjust ZO height after Auto-leveling, untill the height between nozzle and hot bed is the thickness of one layer of A4 paper.
Solution 2: Heat the hot bed to 60°C, then wipe the lattice platform with water or alcohol to remove grease and dust.
Solution 3: Add brim the model or rise the temperature of the hot bed in the slicer software
The filament doesn't go easily into extruder
Cut the end of the filament into an oblique, straighten the head of the filament, and use automatic feeding. When the extruder starts working,
push the filament by hand.
The filament cannot be pulled out from extruder smoothly when you change it
Solution 1: Pull out the PTFE tube from the extruder, then pull out the filament from the extruder.
Solution 2: If the PTFE tube has been deformed please change the PTFE tube first, insert the new PTFE tube till bottom, and tighten the pneumatic connector
with the locking clip, then push down the new PTFE tube until it doesn't go further.
Solution 1: Heat the nozzle to 220°C, then clean the nozzle with the nozzle cleaning needle
Solution 2: Heat the nozzle to 240°C, then click "Tools>Change>In" to use automatic feeding, to see if there is any filament extruded from the nozzle
Solution 3: Clean the extruder gear and remove the filament fragment.
Solution 4: Change the nozzle module and cut the PTFE tube to a flat end and insert it to the bottom as far as possible,
Poor printing surface quality, with spots and wire drawing
Solution 1: -Back up all the SD card files to your computer.
-Format the SD card, Select "32kilobytes" under the
"allocation unit size" option and then click "start.
-Copy Gcode to the SD card and try again.
Solution 2: Check if the linear guide and parallel arm are loose and well lubricated.
Solution 2: To cut the PTFE tube to a flat end, heat the nozzle to 220°C, then re-insert the PTFE tube to nozzle kit as far as possible
Solution 3: Clean up the remaining filament debris on the extruder gear.
Solutions when display errors
error: TH-MAX The nozzle temperature sensor short circuit, please check the nozzle temperature sensor or the nozzle temperature sensor connector.
error: TB-MAX The hot-bed temperature sensor short circuit, please check the hot-bed temperature sensor or the hot-bed temperature sensor connector.
error: TH-MIN The nozzle temperature sensor broken circuit, please check the nozzle temperature sensor or the nozzle temperature sensor connector.
error: TB-MIN The hot-bed temperature sensor broken circuit, please check the hot-bed temperature sensor or the hot-bed temperature sensor connector
error: TH-Runaway The temperature sensor at the nozzle fails or is suddenly disconnected during printing.
error: Heating failed The nozzle temperature sensor fails or suddenly disconnects during preheating or heating.
The printer can't be leveled, and the three axes don't go home
Solution 1: Click "Set>Restore" and then do the Auto-Leveling again.
Solution 2: Check whether the red light on the limit switch is on. If the light on the limit switch is not on, it may be that the limit switch is damaged. swap with
other limit switch and try again.