Do you have a question about the LONGER LK4 and is the answer not in the manual?
Build Volume | 220 x 220 x 250 mm |
---|---|
Layer Resolution | 0.1 - 0.4 mm |
Nozzle Diameter | 0.4 mm |
Filament Diameter | 1.75 mm |
Connectivity | USB, SD card |
Bed Leveling | Manual |
Print Technology | FDM (Fused Deposition Modeling) |
Heated Bed | Yes |
Bed Temperature | Up to 100°C |
Nozzle Temperature | Up to 250°C |
Machine Weight | 7.8 kg |
Printing Speed | 80 mm/s |
Supported Materials | PLA, ABS, TPU |
Frame Material | Aluminum |
Power Supply | 24V, 360W |
Safety warning regarding hot nozzle parts and avoiding direct contact during operation.
Electrical safety guidelines including voltage compatibility, grounding, and avoiding incorrect power sources.
Recommendation to stop the machine for 1-3 hours after continuous operation exceeding 96 hours.
Advice on securing the filament end and recommendation to use company-provided consumables.
Specifies optimal temperature (10°C~30°C) and humidity (20%~50%) for printer operation.
Detailed specifications of the LK2 3D printer including dimensions, technology, materials, and software compatibility.
Diagram illustrating major components of the 3D printer like Rack, Gantry, Extruder, and Hot bed.
Detailed breakdown of the nozzle assembly components, including fan, heat sink, and thermistor.
Visuals of the upper and lower packaging components of the 3D printer.
Image showing the fully assembled LK2 3D printer.
Visual guide for installing the gantry, highlighting screw types and alignment of blue boxes.
Instructions for installing the X-axis components, including screw types and adjusting eccentric nuts.
Visual steps continuing the X-axis installation process, showing component alignment and attachment.
Instructions on adjusting the belt tension on the X-axis using screws on the box.
Guidance on mounting the X-axis beam and adjusting wheels with eccentric nuts for proper fit.
Steps for installing the gantry upper beam and mounting screws using specified sizes.
Steps for installing the Teflon tube, noting its direction and ensuring proper alignment.
Procedure for aligning the lead screw with the motor shaft and adjusting coupling tightness.
Guide for installing the Z-axis limit switch, noting its adjustable position from the base.
Steps for mounting the aluminum substrate, showing springs and assembly detail.
Numbered diagram showing connections for X motor, X limit switch, E axis motor, E axis break detection, Z axis motor, and Z axis limit switch.
Visual steps for connecting the screen's ribbon cables to the mainboard.
Visual guide for routing screen cables and using cable ties appropriately.
Steps for mounting the rack and glass onto the printer assembly.
Image showing the fully assembled LK2 3D printer, confirming completion of assembly steps.
Instructions on how to adjust the power supply to match the input voltage (110V or 220V) to prevent damage.
Detailed steps for manually leveling the print bed using the nozzle and leveling nuts, aiming for A4 paper thickness.
Description of the leveling interface buttons (Top Left, Top Right, etc.) and their functions.
Overview of the machine's control panel functions, including moving heads, files, extrusion, and leveling.
Explanation of the main interface icons (HOME, Move Head, Files, Extrude, Leveling, Recovery, More) and their functions.
Description of what each interface section controls, such as movement, temperature, and material flow.
Screenshots and steps for installing the Cura slicing software, including driver installation.
Guide through the initial Cura setup wizard for selecting language and machine type.
Instructions for manually configuring RepRap machine settings like dimensions and nozzle size in Cura.
Overview of the Cura interface, showing file loading and basic settings like filament diameter and flow.
Details on Cura settings for slicing, including nozzle size, retraction, speed, and quality parameters.
Explanation of how to manipulate the 3D model in Cura, including rotation, scaling, and mirroring.
Visual guide on using Cura's tools for rotating, scaling, and mirroring 3D models.
Instructions on saving the sliced file as G-code to an SD card for printing.
Explanation of different print view modes in Cura (Normal, Overhang, Transparent, X-Ray, Layers).
Detailed explanation of quality parameters like layer height, shell thickness, fill density, and print speed in Cura.
Guide to setting up support structures, platform adhesion, filament diameter, and flow rate in Cura.
Detailed explanations of layer thickness, shell thickness, retraction, and bottom/top thickness settings.
Explanations of fill density, print speed, printing temperature, and support type settings.
Detailed explanations of retraction speed, distance, travel speed, and bottom layer speed settings.
Explanations of initial layer thickness, line width, and cooling fan settings in Cura.
Steps for installing the CH340G USB driver for connecting the printer to the computer.
Guide to configuring Cura preferences, selecting the printer model, and setting communication parameters like serial port.
Instructions on connecting the printer via USB and verifying the connection status.
Steps to start printing after loading a file, including using the print window and controlling axis movements.
Explanation of the G-code control box for advanced users, with a warning against incorrect usage.
Procedure to resume printing after a power interruption by using the 'Recovery' option.
How the printer detects and alerts when filament runs out, and the process to resume printing.
Steps to resolve filament run-out by refilling filament and clicking the Recovery button.
Guidance on resuming prints after a power failure, noting print data saving conditions.
Steps to update the printer's firmware by copying files to an SD card and restarting the machine.
Troubleshooting steps for when the filament does not discharge from the nozzle, including checking the feeding mechanism and using a cleaning needle.
Troubleshooting steps for filament getting stuck in the pneumatic joint during retraction.
Guidance on resuming prints after a power failure, noting print data saving conditions.
Troubleshooting steps for uneven nozzle-to-bed distance during leveling, suggesting checking X-axis beam tightness.
Solutions for curling or poor adhesion of the first layer, recommending re-leveling and using raft settings.