LONGER LK 4 Manual

1. Filament holder
2. Extruder
3. Hot end
4. Hot bed
5. Touch screen
6. Power supply

7. E filament detector
8. E extrusion motor

9. X-axis motor X-axis limited switch
10. X-axis limited switch
11. Y-axis motor
12. Y-axis limited switch

13. Z-axis motor Z-axis limited switch
14. Z-axis limited switch

POWER SWITCH

• Use the wrench to toggle the switch to the RIGHT local voltage Before powered on. Please check the RIGHT voltage to avoid to burn down printer.
  

INSTALLATION STEPS

1. Preparation: Gantry, X-axis beam and frame base
   
   • Follow the direction of arrow and put the gantry frame through the X-axis beam carefully. Note: during installation, Do not to tear the cables. After assembling, the cables should be put behind.
     
     Note: the frame with holes is on the left
     
2. Preparation: Coupler, motors and screws
   
   • Install the motor
     
3. Preparation: Screw rod
   
   • Assembly screw rod (By rotating the screw rod).
     
4. Preparation: Screws
   
   • Install the gantry onto the base.
     
5. Preparation: Limited switch and filament holder
   
6. Preparation: Touch screen, touch screen back cover, Screws
   
   
7. Connect:

   label \ Number of cables	Two wires	Four wires	The picture below shows 2-wire cable and 4-wire cable
   E	7	8
   X	10	9
   Y	12	11
   Z	14	13

* Please reference the printer description and cable terminals with orange rubber letters to connect the cables.
* The numbers from 7 to 14 in the table above correspond to the serial numbers in the "PRINTER INTRODUCTION" section.

LEVELING

• Please click on the touch screen "More"-> "Leveling", starting from the icon in the lower left corner, click the icons counterclockwise in turn. After each click on the icon, wait for the nozzle to move to the corresponding position and adjust the leveling nut. Try to keep the nozzle and the platform at a proper distance.
  
• The distance between the nozzle and the platform is controlled to the height of 0.1-0.2mm, about the thickness of A4 paper.
  (Put on a A4 paper, feel the slight friction when you pull the paper)
  

SOFTWARE INSTALLATION AND OPERATION

INSTALLATION

Double-click to open the file with.msi, there's a pop-up window to appear, click "Next", "Confirm" and "Finish". Please save as default path when the slice software is installing, otherwise the slicer is not able to run normally.

SETTING

Run the program select the software interface language in "English", select the model "LK4", select "Finish".

PROCEDURE OF SCLICING

1. Run the slicer of "LONGER 3D Slicer".
2. Modify printing parameters, import model file -> edit model -> export as Gcode file (save path is on the bottom of slicer window).
3. Copy the file into TF card, insert it into the printer, power on the printer, select the printed file, and start printing.

ATTENTION

1. The working voltage is AC 115V or 230V. Please switch to the right input voltage on the side of the printer to meet with local voltage. (Default Voltage is AC 230V).
2. During printing, the temperature of nozzle will reach up to 250°C. To ensure your safety, do not touch the moving parts or the high temperature nozzle kits when printer is printing.
3. We suggest to turn off the printer for 1-3 hours if the printer is printing for more than 96 hours continutely
4. Recommend the best environment is temperature at 25°C and htumidity is 20% ~ 50%.