LONGER LK4 User manual

LK4 Instruction Manual
Longer

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Catalog
A. Product information........................................................................................................................3
(1) Model parameter................................................................................................................... 3
(2) Packing List............................................................................................................................. 4
(3) Nozzle module exploded view............................................................................................... 5
(4) Machine assembly................................................................................................................. 6
B．Machine operation....................................................................................................................11
（1）Machine control.............................................................................................................. 11
（2）Main interface................................................................................................................. 12
C. Installation and use of Changlang 3D slicing software............................................................ 13
(1) Software installation............................................................................................................ 13
(2) Model selection................................................................................................................... 13
(3) Software usage introduction............................................................................................... 15
(4) Detailed software parameters............................................................................................. 15
(5) Export gcode format for printing.........................................................................................16
D. Instructions for printing online..................................................................................................... 17
(1) Printer connection............................................................................................................... 17
(2) Software settings................................................................................................................. 17
(3) Online printing..................................................................................................................... 18
(4) Professional settings............................................................................................................ 19
E．Resume printing and filament run-out detection function...................................................... 20
（1）Power outage recovery................................................................................................... 20
（2）Filament run-out detection.............................................................................................20
F．FAQ manual............................................................................................................................... 22
Question1: How to update the firmware?.........................................................................22
Question 2:What if the filament does not discharge from the machine?.................... 22
Question 3: When the machine returns the filament, it can't be returned. What should
I do when stuck in the pneumatic joint?............................................................................. 23
Question 4: What should I do if I cannot resume printing after power shutdown?..... 23
Question 5: When the machine is leveling, the nozzle moves to the left, it can be
leveled normally. When the nozzle moves to the right, it is found that the distance
between the nozzle and the heated bed are very far or very close. If the spring is
adjusted to the extreme position, it still cannot be leveled. What should I do?........... 24

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Safety Precautions
1) The temperature of the nozzle parts can reach 250 °C during the
operation of the machine. To ensure your safety, it is forbidden to touch
the model and nozzle directly with your hand while the printer is
printing or cooling.
2) During the operation of the machine, it is forbidden to reach into the
machine to prevent pinching.
3) The working voltage is 110~220V AC voltage 50HZ AC. The three-pin
socket must be grounded. Do not use other power sources to avoid
damage to components or fire, electric shock and other accidents.
Note: Before powering on, please check whether the input voltage value
of the switching power supply meets the voltage standard of the country
or region.
4) When the machine is working continuously for ≥ 96 hours, it should
be stopped for 1-3 hours.
Consumables
The consumables are not used after unpacking or for a long period of
time after the print model is completed. The consumables should be
taken out of the printer and sealed to prevent the consumables from
being exposed to the air for a long time, causing moisture and affecting
the print quality. At the same time, when the consumables are removed

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The front end of the consumable should be fixed on the tray to avoid
consumables and affect the next print.
To use this printer, it is recommended to use the supplies provided by
the company. At present, the quality of consumables sold in the retail
market is uneven, and printing is prone to breakage.
Staggering and clogging the printer nozzle, etc., and irreversible damage
to the heating components of the nozzle, the extrusion motor and the
extrusion gear. The company will not guarantee the printer due to the
use of consumables other than our company.
Environmental requirements
Temperature requirement: 10°C~30°C, humidity requirement: 20%~50%,
this 3D printer can work normally within this range; beyond this range,
this 3D printer will unable to achieve the best print results.

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A.Product information
(1) Model parameter
model
LK4
Machine size
402*382*655mm
frame
Classic aluminum
frame
Machine weight
7.8KG
Molding
FDM (hot melt
production)
Package
dimensions
507*467*190mm
Number of nozzles
1
Consumable color
Multi-color
optional
Molding size
220*220*250mm
Power requirement
Output 24V
Layer thickness
0.1-0.4mm
operating system
Windows,Linux,MAC
Memory card offline
printing
Support TF card
Interface
language
English
LCD screen
YES
Environmental
requirements
Temperature 10-30 °
C
Humidity 20-50%
printing speed
Not more than
120mm/s
Nozzle
temperature
Room temperature to
250 ° C
Nozzle diameter
0.4mm
Hot bed
3mm thick integrated
heating aluminum
plate, forming
platform
Slicing software
Cura,repetier-host
Support
consumables
PLA, ABS, wood,
copper consumables
file format
STL,G-Code,OBJ
Consumable
diameter
1.75mm

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(2) Packing List

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(3) Nozzle module exploded view
Quick pneumatic joint
Heat sink
Heating block
nozzle
Heater
Thermistor
Sheet metal protective case
3010 fan
4010 fan
Air guide

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(4) Machine assembly

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