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3D Printers
Laser Engravers
Accessories
- For 3D Printers
  - For FDM 3D Printers
  - For LCD 3D Printers
- For Laser Engravers
Support
- Customer Support
- Resources
  - Download
  - Operation Documentation
Company
- About Longer
- Goaffpro

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Download Product Manual

LX4- Instruction Manual

Download Product Firmware

190612_LK4_FW_V2.16
200401_LK4_FW_V2.18
201027_LK4_FW_V2.19
201110_LK4_FW_V2.20
201216_LK4_FW_V3.0-Beta-Marlin2.0
Marlin_2.0_LGTV1.0_LK4_Source_code

Download Product Software

LK4-3D Slicer 1.3
CH34x_Install_Windows_v3_4
CH340G_ Driver_Windwos
CH341SER_MAC

Download Product Tutorial Videos

Lk4 installation video-EN
3D Printer - Unbox & Setup
Replace hotend components without soldering iron
Adjust X Y Z axis
How to deal with the homing fail issue?
Turn off the no filament alarm function
How to setup the new version of LONGER LK4 3d printer
How to solve abnormal nozzle temperature
How to fix the black screen of printer
LK4 Upgrade Kit to LK4 PRO
How to solve the problem about abnormal bed temperature
The easiest way to fix uneven glass
How to solve LK1 LK4 white screen during printing
How to remove Teflon tube
How to fix the white screen of LK4 printer
How to keep the base of the machine from shaking （leg problems）
Check the main board and switch power supply
Longer LK4 3D Printer

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