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longer lk2 3d printer:

220 x 220 x 250mm build size, the best entry level machine for novice and professional users.
2.8'' full color touch screen display for more intuitive control, it can be installed on left or right side as user's habit.
Power failure resume printing function ensures continuous printing, easy to print anytime and anywhere.
Filament detection function to prevent problems caused by filament runout.
High printing accuracy with standard 0.4mm diameter nozzle.

Built-in power supply, hidden under the build platform, reduces the risk of electric shock.

Heated print bed is capable of 3D printing the most popular thermoplastics including PLA, ABS, Wood, Carbon Fiber etc.

  • Firmwares
  • Drivers
  • Slicer
  • FAQ
  • Manual

Q1 :  the LCD screen lights up but doesn’t show any icon when the printer is booted or using 

solution:   https://drive.google.com/open?id=1clRNlBaJ7LQ3AB4QnxcNjmRjl9jy5Kio 

Q2:  The LCD screen (backlight ) does not light up when the printer is booted or using 

solution:   https://drive.google.com/open?id=1pS4YGS8uLBZ9Q2FEIPnoexxnkqMgd1B- 

Q3:  The LCD screen displays “Detected abnormal temperature of the hotbed”, and the left side of the LCD alarms the hotbed“cold”

solution:   https://drive.google.com/open?id=1w_GluhCp5sDYrHE4sylcJOnlqCD5EQ_S 

Q4:  The LCD screen displays "Detected abnormal temperature of the hot bed", and the left side of the LCD alarms the hotbed "Hot"

solution:   https://drive.google.com/open?id=1UBTFZWLde6uSLaNIsss7-c5yn6CtWzT7 

Q5:  The LCD screen displays "Detected abnormal temperature of the print head", and the alarm print head is "Cold"

solution:  https://drive.google.com/open?id=1cozCHORUNFnaCOgLK-BBBT93R8lIFnJP 

Q6:  The LCD screen displays "Detected abnormal temperature of the print head" and warns that the print head is "Hot"

solution:  https://drive.google.com/open?id=1rZEl0wfuRf-gGXGNTdAFvsTpxzcme6T7 

Q7:  The LCD screen shows that the print head and hotbed both are "cold" when the printer is booted or during using.

solution:  https://drive.google.com/open?id=15enDx0uxmyFydtLO_mbH1MMS9z_bVTgZ 

Q8:  During the startup or use, the print head or the hotbed automatically heats up, the temperature cannot be controlled, and the temperature does not stop until the power is turned off.

solution:   https://drive.google.com/open?id=1wWzpLjyyxEfcqFPricH25TWAaatzYltj 

Q9:  When setting a target temperature or printing file for the hotbed, but the hotbed (aluminum substrate) is not heated.

solution:  https://drive.google.com/open?id=17DwEk0_dNyAEYlatB5rR4gfX6sQImx55 

Q10:When setting a target temperature or print file for the print head (or nozzle), the print head is not heated.

solution:  https://drive.google.com/open?id=1zZRUVUouFYyLrggVXsOfdG05x6qhEe5e 

Q11:  The X/Y/Z axis motor doesn’t turn or turn abnormally when leveling or moving the axis operation, the axis movement is not smooth, sometimes it is stuck, sometimes even makes a lot of noise.

solution:  https://drive.google.com/open?id=1XfFH8jLHOPEODxwble7Fug7otDKOuy0Q 

Q12:  The extruder (feeding motor) does not turn normally , or slip / click / stuck .

solution:  https://drive.google.com/open?id=14rsy3Mkzx4l3z0eKlGjdRVwqfdbQFTrK 

Q13:  The filament detection switch does not work, no filament can be detected, or always alarms "no materials” while it actually has filament. 

solution:  https://drive.google.com/open?id=1JS4poO4xkSrwSZcfqU1eDPQ2Avgfhs4I 

Q14:  The Z axis of the printer can not move up and down properly , but the z-axis motor can rotate. 

solution:  https://drive.google.com/open?id=1_uxTpM9Ap9AxTJaJ9gsRU1-F5kn2isul 

Q15:  The print head (hotend ) cooling fan doesn’t work when the printer reboots or during printing. 

solution:  https://drive.google.com/open?id=1TagarH8C2RgdQLrmdp55aKWPzKgcspvP 

Q16:  During the "move head" operation or printing process, Z axis motor does not rotate or rotate abnormally , such as shake /stuck /slip , etc.

solution: https://drive.google.com/open?id=1X_Ccrd3BLPaIVVK2-FKo-PCp1Xw54jG7 

  • Use Video
  • Assemble Video
  • Maintenance Guidance
  • Longer LK2 - 3D Printer - Unbox & Setup

  • Longer LK2 - 3D Printer- Upgrade & Prints

  • T3DP Longer 3D LK2 Unbox, Build, Print

  • Creality Ender 3 vs Longer 3D LK2 Print Comparison

  • LONGER LK2 3D Printer Assembly Tutorial 480P version

  • Longer 3D LK2 Unboxing and Build

  • Adjust the X-axis movement tightness tutorial

  • Adjust the print platform movement tightness tutorial

  • Replace the hotend(printhead) method

  • Replace the teflon tube method

  • Manual leveling tutorial

  • The motherboard replacement tutorial

  • The model cooling fan (4010) replacement tutorial

  • The hotend cooling fan (3010) replacement tutorial

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