LONGER LK1 User manual

LK1 instruction manual
LONGER

catalog
A．product information....................................................................................................................2
(1) Model parameter...................................................................................................................2
(2) Machine introduction............................................................................................................ 3
(3) Nozzle module exploded view...............................................................................................3
(4) Machine assembly................................................................................................................. 4
1.Rack installation............................................................................................................... 4
2.wiring................................................................................................................................5
3.Power regulation..............................................................................................................1
4. Pre-use inspection and leveling...................................................................................... 1
5. Leveling method..............................................................................................................2
6. Place filament, feed.........................................................................................................3
B．Machine operation......................................................................................................................4
(1) Machine control.....................................................................................................................4
(2) Main interface........................................................................................................................5
C. Installation and use of Changlang 3D slicing software.............................................................. 6
(1) Software installation.............................................................................................................. 6
(2) Model selection............................................................................................................................. 7
..................................................................................................................................................... 7
(3) Software usage introduction......................................................................................................... 8
(4) Detailed software parameters............................................................................................... 8
(5) Export gcode format for printing...................................................................................................9
D. Instructions for printing online.....................................................................................................10
(1) Printer connection............................................................................................................... 10
(2) Software settings................................................................................................................. 10
(3) Online printing..................................................................................................................... 11
(4) Professional settings............................................................................................................ 12
E. Description of power failure and break detection function.........................................................13
(1) Power failure........................................................................................................................13
(2) Broken material detection................................................................................................... 13
F. Machine Usage FAQ Guide............................................................................................................ 15
Question 1: How to update the firmware?...............................................................................15
Question 2: What should I do if the machine does not discharge？.......................................15
Question 3: What should I do if the machine does not retreat when the material is returned?16
Question 4: What can I do if I can't power off?........................................................................16
Question 5: When the machine is leveled, when the nozzle moves to the left, it can be
leveled normally. When the nozzle moves to the right, it is found that the nozzle and the hot
bed are far apart or very close. What should I do if the spring is adjusted to the limit position?
................................................................................................................................................... 17
Question 6: After the machine is heated, the spit is normal, but when the first time of
printing, the silk falls on the platform and curls, and then after printing a few layers, what
should I do if it is off the platform?.......................................................................................... 17

1
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
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 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%,
within this range, the 3D printer can work normally; beyond this range,
this 3D printer will unable to achieve the best print results.

2
A．product information
(1) Model parameter
Model parameter model
LK1
Machine size
470*575*610MM
Frame
Classic aluminum
frame
Machine weight
10.6KG
Molding Process
FDM
Kit Package
Size
635*518*290MM
Number of nozzles
1
Weight after
packaging
14.2KG
Molding size
300*300*400MM
Power
requirements
Output 24V
Layer thickness
0.1-0.4mm(adjustab
le)
Operating
system
Windows,Linux,MAC
Memory card offline
printing
Support TF card
Interface
language
English
LCD screen
Yes
environmental
requirements
Temperature 10-30 ℃
Humidity 20-50%
Printing speed
≤120mm/s(30-60mm
/s recommended)
Nozzle
temperature
Room temperature to
250°C
Nozzle diameter
0.4mm
hot bed
Yes
Slicing software
Cura，repetier-host
Support
filament
PLA，ABS，wood
File format
STL，G-Code，OBJ
filament
diameter
1.75mm
filament color
Multi-color
optional

3
(2) Machine introduction
(3) Nozzle module exploded view
Gantry
Base
Control box
Filament Rack
Nozzle module
Extruder module
Hot bed
Teflon tube
Sheet metal
fixed block
Quick pneumatic joint
Heat sink
Heating block
Nozzle
Heater
Thermistor
Sheet metal
protective case
small fan
Big fan
Air guide

4
(4) Machine assembly
1.Rack installation
Gantry and base, M5*20 screw
limit block and profile, M4*18
screw

5
2.wiring
1: X-axis motor 2: Y-axis motor 3: Z-axis left motor 4: E-axis extrusion motor
1X-axis limit switch②：Y-axis limit switch③： Z-axis limit switch ④：E-axis break
detection switch
4
①
③
1
2
3
4
1
2
②
3
④

1
Note: For proper wiring, place the Y-axis motor and Y-axis limit switch cable
under the base to prevent the moving parts from scratching the cable.

1
3.Power regulation
4. Pre-use inspection and leveling
If the access voltage is 220V,
please adjust the power supply in
the control box to 220V, please
be sure to confirm before
powering on. Otherwise it will
burn the power
If the access voltage is 110V, please
adjust the power supply in the control
box to 110V, please be sure to confirm
before powering on. Otherwise it will
burn the power
shake the hot bed and the nozzle by hand to see if there is
any gap or sway. If there is any shaking, you can use an
open-end wrench to screw the hexagonal sleeve on the
corresponding pulley, which can adjust the tightness of the
hot bed and the nozzle.
Tip: After the machine is assembled, please
arrange the cable and move the three-axis
motion by hand to see if it affects the
movement and the jamming phenomenon.

2
5. Leveling method
You can manually click the XY zero
and Z zero in the Movement
interface, then unlock, manually
move the hot bed and the nozzle,
and then adjust the leveling nut so
that the distance from the nozzle to
the hot bed is about one A4 paper
thickness。
Turn on the machine, click the levelling button, click
the four buttons in turn, the nozzle will move to the
corresponding position correspondingly. After
waiting to move to the corresponding position, you
can manually adjust the hand nut to adjust the
distance between the nozzle and the hot bed to
approximately one A4. Thicken the paper, tighten
the screw [tighten counterclockwise], and increase
the distance between the heating plate and the
nozzle. Loosen the screw [screw in the clockwise
direction] and the heating plate will be close to the
nozzle. Adjust the other three points in turn to
complete the leveling.