LK4 Instruction Manual Longer
Catalog A. Product information........................................................................................................................3 (1) Model parameter................................................................................................................... 3 (2) Packing List.............................................................................................................................4 (3) Nozzle module exploded view.................................................
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.
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.
A.Product information (1) Model parameter model LK4 frame Classic aluminum frame 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.
(2) Packing List www.longer3d.com 4 info@longer3d.
(3) Nozzle module exploded view 4010 fan Air guide Quick pneumatic joint 3010 fan Sheet metal protective case Heat sink Heating block nozzle Thermistor Heater www.longer3d.com 5 info@longer3d.
(4) Machine assembly www.longer3d.com 6 info@longer3d.
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B． Machine operation （1）Machine control ±X.±Y.±Z（move） Move Head ±X.±Y.±Z （正负移动） X.Y.Z（home） Motor unlock Moving distance adjustment Return Nozzle temperature Start printing Files 喷嘴温度 printing speed Page flip Return Pause printing Print interface Parameter Nozzle temperature LK4 Extrud e Discharge flow Stop printing 料 Adjustment distance stop Top left Bottom left Top right Bottom Unlock the X.Y motor Return 11 speed of fan return Slow in and out Automatic feeding and discharging www.
Click on the file to enter More Refresh Return Save Page flip Recovery Power failure recovery 返回 （2）Main interface Controls the movement of the X, Y, and Z coordinates, whether the motor is locked, the moving distance of the nozzle, and the amount of ejection. Auxiliary leveling function, which can be automatically moved to the corresponding position for easy leveling. www.longer3d.com Open the print file and print interface.
C. Installation and use of Changlang 3D slicing software (1) Software installation Double-click the LONGER 3D Slicer to enter the installation guide page Click to enter the next step, select the default C drive for installation, otherwise the software will not open normally Follow the software installation guide reminder and click Next to complete the installation. www.longer3d.com 13 info@longer3d.
(2) Model selection Open the software and choose the language you want According to the model of the machine purchased, select the corresponding model. Incorrect selection will cause the machine parameters to be incorrect and the printer will not work properly. If it is a machine of another brand, you can also choose other models for related settings or use it. www.longer3d.com 14 info@longer3d.
(3) Software usage introduction 3D printer supports gcode format files, so you need to import the STL format model into Changlang 3D slicing software for slicing operation. To print a fine model, you need to have a deep understanding of the slicing software that controls the print path. Print out the various models you want, and set each parameter of the machine to the parameter bar to pop up the corresponding explanation. (4) Detailed software parameters Layer thickness: 0.1 ~ 0.4mm, high accuracy of 0.
Nozzle aperture: 0.4mm. Retraction speed: the speed of retraction when printing the model. Retracted length: The length of the material withdrawn, generally 4.5 ~ 8mm. Initial layer thickness: Print the thickness of the first layer, which is the default. Initial layer line width: 100% will be thicker and denser, just default. Bottom Cut: The length of the bottom cut of the model. Two extrusion overlaps: 0.15mm. By default. Idling speed: The moving speed of the nozzle when it does not squeeze consumables.
D. Instructions for printing online Changlang 3D printers support online printing operations, but because the computer sends instructions continuously for a long time, there are many different settings on the personal computer (some computers will set the energy-saving mode or the screen mode, etc.) and the computer will freeze if it runs. The interruption fails, and online printing is generally not recommended.
Open the Changlang 3D slicing software. The first step is to turn on the model. The second step is to open the model settings. The third step is to select the serial port number displayed by each computer. Generally, the larger serial port is selected. Normally select "AUTO" for the special rate. If you still cannot connect normally, select 115200. After the port is selected correctly in step 5, the original U disk icon will change to a printer icon.
(4) Professional settings If you want to print a more professional page online, you can set it by the following steps. Select file in the first step, select parameter settings in the second step, and change the print window settings in the third step to professional. Then start printing the page online and it will become a professional page, you can send G codes, you can control the movement of each axis. If non-professionals use it with caution, it is generally not recommended. www.longer3d.
E ． Resume printing and filament run-out detection function （1）Power outage recovery When printing for a period of time and the height of the print exceeds 0.5mm, the power-off icon will be displayed. At this time, the power is turned back on, and the icon can be clicked. After waiting for the temperature to rise, normal printing can be resumed. www.longer3d.com 20 info@longer3d.
（2）Filament run-out detection At this point, pull the Teflon tube out of the extruder end, remove the material, refill the consumables to the nozzle, and click the Recovery button to resume printing. www.longer3d.com 21 info@longer3d.
F． FAQ manual Question1: How to update the firmware? 1. Copy these two files to the SD card 2. Then restart the machine and wait for the machine progress bar to complete before the firmware is refreshed. 3. Then the user needs to delete the two files in the SD card to be used normally, otherwise the firmware will be refreshed every time the phone is turned on Question 2:What if the filament does not discharge from the machine? www.longer3d.com 1.
Question 3: When the machine returns the filament, it can't be returned. What should I do when stuck in the pneumatic joint? 1. Before returning the material, please heat the nozzle first, and then withdraw the consumables as soon as possible. If you can't pump it, you can re-feed the material with the advanced material, and melt the extruded block formed at the end of the consumable in the nozzle. 2.
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? If this happens, the X-axis beam is generally loose. At this time, the hex socket on the right side of the machine can be adjusted with a wrench to adjust the tightness. www.
Question 6: After the machine heats up, the filament is discharged normally. However, when the printing is performed for the first time, the curling occurs on the platform. After printing several layers, the filaments get out of the platform. What can I do 1. After the user gets the 3D printer, if the leveling is found to be curled on the first layer of silk, it feels like it is gently falling on the platform. It can be judged that the leveling is not adjusted, and the nozzle is too high from the hot bed.
