LONGER LK4 Pro User Manual
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LONGER LK4 Pro User Manual

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  • Page 2: Table Of Contents

    Catalog A. Product information........................3 (1) Model parameter........................3 (2) Machine introduction......................4 (3) Nozzle module exploded view....................4 (4) Machine assembly......................... 5 1. Gantry installation......................5 2. X-axis installation......................6 3. Mounting the x-axis beam....................9 4. Install the gantry upper beam..................9 5. Mounting screw.......................9 6.Install Teflon tube......................10 7.Install the z-axis limit switch..................
  • Page 3 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.
  • Page 4 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.

  • Page 5: Product Information

    A.Product information (1) Model parameter model LK4 Pro Machine size 402*382*655 MM frame Classic aluminum Machine weight 7.8KG frame Molding FDM (hot melt Package 467*412*187 MM production) dimensions Number of nozzles Consumable color Multi-color optional Molding size 220*220*250mm Output 24V...

  • Page 6: Machine Introduction

    (2) Machine introduction Rack Gantry Extruder module Nozzle module Hot bed Motherboard Foot power supply (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 info@longer3d.com...

  • Page 7: Machine Assembly

    (4) Machine assembly 1. Gantry installation Two blue boxes in the picture, need to be in one direction The screw used is M5*20 www.longer3d.com info@longer3d.com...

  • Page 8: X-Axis Installation

    2. X-axis installation Screws are all M4*16 If the nozzle block wheel cannot enter, use a wrench to adjust the eccentric nut. www.longer3d.com info@longer3d.com...
  • Page 9 www.longer3d.com info@longer3d.com...
  • Page 10 The tension of the belt can be adjusted by the two screws on the www.longer3d.com info@longer3d.com...

  • Page 11: Mounting The X-Axis Beam

    3. Mounting the x-axis beam If the wheel does not fit in, you can adjust the wheel with the eccentric nuts on both sides. Let the X-axis beam enter 4. Install the gantry upper beam Use 4 M5*20 5. Mounting screw Use 2 M4*16 www.longer3d.com info@longer3d.com...

  • Page 12: Install Teflon Tube

    Let the lead screw snap into the coupling and the motor shaft is also aligned with the lead screw. Tighten the top wire Adjust the screw movement by adjusting these two screws. The two screws cannot be tightened too tightly. Turn the coupling hand adjust...

  • Page 13: Install The Z-Axis Limit Switch

    7.Install the z-axis limit switch Z-axis limit opening installation is about 12mm from the base (this is adjustable) 8.Mounting aluminum substrate www.longer3d.com info@longer3d.com...

  • Page 14: Wiring

    9.Wiring 1. X motor line 2. X limit switch line 3. E-axis motor line 4. E-axis break detection 5. Z-axis motor line 6.Z-axis limit switch 10. Screen wiring www.longer3d.com info@longer3d.com...

  • Page 15: Mounting Rack

    11.Mounting rack 12 .Assembly completed www.longer3d.com info@longer3d.com...

  • Page 16: 5） Power Regulation

    （5） Power regulation 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 control box to 110V, please...

  • Page 17: 6）Leveling Method

    （6）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.。...

  • Page 18: B． Machine Operation

    B． Machine operation （1）Machine control interface description Primary Secondary Explain interface interface Nozzle temp Display nozzle temperature Heatbed temp Display the temperature of the hot bed File The name of the file Time Print time HOME Progress Print process Height Print height Pause time out...
  • Page 19 magnification Restore Restore default (100%) step Print speed step size Increase\lower Nozzle flow control Nozzle flow rate Restore Restore default (100%) step Nozzle flow step size LEDs Open \close LEDs light control Nozzle temperature Nozzle temp display Hot bed temperature Heatbed temp display Filament type...

  • Page 20: 2）Home Interface

    （2）Home interface Print file parameter information Pause Cancel www.longer3d.com 18 18 info@longer3d.com...

  • Page 21: 3）Move Interface

    （3）Move interface Distance adjustment XY zero XY mobile interface Z zero mobile interface Motor unlocked\locked E-axis feed and discharge www.longer3d.com 19 19 info@longer3d.com...

  • Page 22: 4）Tune Interface

    （4）Tune interface Nozzle temperature temperature Feed rate override Fan speed Nozzle flow rate www.longer3d.com info@longer3d.com...
  • Page 23 Distance ajustment restore cooling cooling increase reduce restore stop www.longer3d.com info@longer3d.com...

  • Page 24: 5）Utilities Interface

    （5）Utilities interface Consumable setting control Automatic leveling control www.longer3d.com info@longer3d.com...
  • Page 25 Temperature parameter Nozzle Consumable temperature heating option return to zero temperature return to zero Nozzle Feed temperature adjustment Return material www.longer3d.com info@longer3d.com...
  • Page 26 www.longer3d.com info@longer3d.com...

  • Page 27: 6）Print Interface

    （6）Print interface File selection and display scroll Start Select the display of the file www.longer3d.com info@longer3d.com...

  • Page 28: C． Cura Installation And Operation Software

    C． Cura installation and operation software www.longer3d.com info@longer3d.com...
  • Page 29 www.longer3d.com info@longer3d.com...
  • Page 30 www.longer3d.com info@longer3d.com...

  • Page 31: 1）Slice Software Offline Printing Instructions

    （1）Slice software offline printing instructions www.longer3d.com info@longer3d.com...
  • Page 32 www.longer3d.com info@longer3d.com...
  • Page 33 www.longer3d.com info@longer3d.com...

  • Page 34: 2）Software Parameter Setting

    （2）Software parameter setting www.longer3d.com info@longer3d.com...
  • Page 35 Layer thickness：0.1~0.4mm available. 0.1mm high precision but long printing time, 0.4mm low precision but printing time is too short, in general select 0.2mm. Shell thickness: 0.4mm is very thin, in general select 1.2mm,that will increase printing time. Enable retraction: To prevent the wire from leaking when printing quickly, otherwise it will affect the appearance.
  • Page 36 Nozzle size: 0.4mm. Retraction Speed: The speed of retraction when printing. Retraction distance: The length of material retraction, generally select 4.5~8mm. Initial layer thickness: The first layer thickness of printing. Select default option. Initial layer line width: 100% will be thicker and denser, Select default option. Cut off object bottom: The length of cutting off the bottom of model.

  • Page 37: D． Operation For Online Printing

    D． Operation for online printing Power on the printer, connect USB to a computer, the driver will be installed automatically. If it doesn't install automatically, find the driver under the driver folder and install it manually. Installation Uninstall Help The driver was successfully installed.
  • Page 38 2. Ctrl + "," opens the "Preferences" dialog. 3. Click on the menu "Model" "" Model Settings" to open Select the corresponding serial port (different computer serial ports may be different, generally choose the larger one), the baud rate is "AUTO", click "OK".
  • Page 39 2.After loading a file, click the status icon above or "Ctrl+P" to start printing, and the print window will pop up. We can click on the gray circle on the window to control the motion of the XYZE axis, respectively, 0.1, 10, 100 means the amount of each movement. The G-code control can be entered in the lower right corner text box.

  • Page 40: E． Resume Printing And Filament Run-Out Detection Function

    E ． Resume printing and filament run-out detection function （1）Power failure When printing, the power is suddenly turned off. If the height of the printed model exceeds 0.1mm, the icon will be displayed when the power is turned on. Only the icon will be displayed once.

  • Page 41: 2）Broken Material Detection

    （2）Broken material detection At this point, pull the Teflon tube out of the extruder end, take out the material, refill the consumables to the nozzle, click YES, after replacing the material, click Utilities, and finally click Print to start, the model will print. www.longer3d.com info@longer3d.com...

  • Page 42: F． Faq Manual

    F． FAQ manual Question1: How to update the firmware? 1. Connect the data cable to your computer and printer and open the cura15.04.3 version. 2. Click cura's machine setting, click baudrate, set to 115200. 3. Click on Install custom firmware in cura 4.

  • Page 43: Question 2:What If The Filament Does Not Discharge From The Machine

    Question 2:What if the filament does not discharge from the machine? 1. After the machine nozzle is heated, the consumables are normally fed into the feeding mechanism by hand, and then passed through the Teflon tube to enter the nozzle. 2.

  • Page 44: Question 3

    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...

  • Page 45: Question 4: What Should I Do If I Cannot Resume Printing After Power Shutdown

    Question 4: What should I do if I cannot resume printing after power shutdown? If the power is suddenly turned off when the part is first printed, the machine will not save the print data. Unless the height of the print exceeds 0.5mm, the power failure will be supported.

  • Page 46: Question 6

    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.

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