Best SLA 3D Printer / FDM Printer – Longer 3D

FAQ – LONGER 3D Printer

Please hold the nozzle at 200 degrees Celsius at first, then pinch the extrusion clamp to push the old filaments forward and pull it out quickly, while preheating the nozzle and withdraw the filament quickly and feed the new filament.

Please turn off the machine when you do not want to continue to print the models.

About Teflon tube remove, follow this video:

The cantilever is the cooperation of the roller and the profile groove. If the adjustment is improper, then the Z-axis will rise to a certain height on one side. This is why the model has a lower side.

Can you try to adjust the cantilever?

When there’s issue of exturder from Longer LK1/LK4/LK4 PRO/LK5 PRO 3d printer, how to fix it? There are usually two reasons in which the extruder works abnormally.

1. Clogged nozzle
In this case, you can refer to the method of cleaning the nozzle above.
2. Damaged extruder
You can exchange the extruder cable with the X-axis cable. Start the machine, control the X axis, and let the extruder work. Observe if they work. If the X-axis is working properly, then the extruder motor is malfunctioning. At this time you can only replace with a new motor.
But if the X-axis does not work after the cable is exchanged. It may be a cable or motherboard failure. At this time, change the Y-axis cable to the extruder, and the motherboard’s extruder port cable to the X-axis. If the X axis is working properly, then the cable is intact. If the X-axis still does not work, it means that the motherboard and cable need to be replaced with a new one.
You can refer to the video in the link below.


Watch video get more detail:

Add Longer 3d printers into Cura, follow this video:

[Resources files]

Yes, it is eash install BL touch to Longer 3D FDM printer, just follow this video:

Article of tutorials: