ANYCUBIC 3D Kobra Plus Printer User Manual

: June 15, 2024
: Anycubic

Table of Contents

3D Kobra Plus Printer
Maintenance
Troubleshooting
References
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User Manual 3D Kobra Plus Printer

3D Kobra Plus Printer

Dear customer,
Thank you for choosing ANYCUBIC products.
Maybe you are familiar with 3D printing technology or have purchased ANYCUBIC printers before, but we still highly recommend that you read this manual carefully.
The installation techniques and precautions in this manual can help you avoid any unnecessary damage or frustration.
Please visit https://support.anycubic.com/ to contact us if you have any question.
You can also gain more information such as software, videos, models from the website.

https://support.anycubic.com/

Team ANYCUBIC
Copyrighted by “Shenzhen Anycubic Technology Co., Ltd ”, all rights reserved.

Maintenance

It is necessary to perform routine maintenance to the 3D printer to achieve consistent and quality results.
Some maintenance suggestions are shown as below:

Clean the nozzle with a needle under preheating conditions. If the filament residue in the nozzle could not be cleared 100%, please replace the nozzle.
Regularly add lubricating oil to smooth rods, linear bearings, lead screws, brass nuts, etc. It can minimize the wear-out failure of those moving parts.
Regularly clean the filament residue and dirt on the nozzle, platform, guide rail, motor, fan, etc.
Pay attention to the wear conditions of the D-shape wheels. Although they could be used for long time, please replace the D-shape wheels if they have been wore-out.
After finishing a printing, clean the printing platform to ensure the adhesion othe bottom layer of the model for next printing.
Check the belts regularly and tighten them if necessary.

Troubleshooting

Motor shaking or abnormal sound
① The corresponding limit switch could not be triggered when home. Please check the wirings, and inspect any obstacles by manually moving the corresponding axis.
② The motor cable are not connected properly. Please Check each connection and then inspect the cable routing for any faults.
③ Drive current is too large / small (please contact customer service).
④ The motor is damaged.
⑤ The motor driving wheel is loose.
⑥ The belt is loose, please check the belt tension at each position of X/Y/Z. And whether the belt is slippery during motor movement or not.
File not printing or memory card failure
① Remove the memory card and insert into PC. Open the GCode files using text editor (eg. Notepad), and inspect if GCode is readable or not. If file contains of multiple “ÿÿÿ” symbol, then file has been corrupted. Try reformatting the memory card to FAT32 format and reloading the GCode file.
② Memory card is not readable, ensure file name does not contain special characters or Change memory card.
③ Touchscreen freeze, reboot the machine and try again.
No extrusion or extrusion motor knocking
① Filaments tangled on spool or the Teflon tube is out of shape. Please straighten out the filaments and Teflon tube, and pull the filaments to observe whether the resistance is normal.
② Ensure that the nozzle temperature has been set to match the filament. (PLA is generally set at 190-210°C, and ABS set at 230-240 °C)
③ Nozzle clogged. Please try to briefly heat the print head to a temperature higher than 230 °C and manually push the filament into the extruder. You can also clean it with 0.4mm nozzle cleaning needle. If it doesn’t work, you may need to replace it.
④ Not enough cooling for the hotend.
⑤ The printer has been working above the maximum speed for a long time, please reduce the speed.
⑥ Check whether the extruder is normal and whether the friction force of the extruder to the filament is sufficient. Try to tighten or clean the extruder wheel.
Filament leaking
① Nozzle, heating block or throat tube is not tightened properly, try to fix/replace it after cooling or contact customer service.
Layer shifting
① Print head moves too fast, please slow down the print speed.
② Check the belts and driving wheels and ensure they are properly installed.
③ Drive current is too small.
No sticking to the bed
① The nozzle is too far from the platform, please try to re-level; at the same time set the “initial layer thickness” to 0.2 in Cura, and set the “initial layer line width” (for example, set to 150) to improve the first layer adhesion.
② Print too fast at the bottom layer speed, reduce it to ~20mm/s
③ Ensure that the print platform is clean
④ Add a brim or raft to the model in slicing software
Freezing screen
① Please check if the soft cable above the screen is loose.
② Inspect if the touchscreen has been pressed by something.
③ Check if screen has cracks, if so, please contact our after sale service via official website www.anycubic.com
T0 sensor abnormal
① Check the wiring of the hotend and ensure a good connection.
② Check if there is any pins bent inside the connector.
Print head move abnormal
① The setting of machine type in slicing software is wrong. Please see page 36 to check the right setting.
Print stopped halfway
① Use print offline mode (memory card) instead of print online via data cable.
② Check if the GCode file is corrupted.
② Delete plugins in the GCode file.
③ The quality of the memory card is unstable. Try changing another brand memory card.
④ The power supply voltage is unstable. Please print again when the voltage is stable.
Some of the structure of the model cannot be printed
① If your model includes overhangs or bridges, you may need to add support on the model or adjust the angle of the model in the slicing software. It is recommended to preview the print layer to check the printability of the model.
Drawing is more serious
① The retraction distance is insufficient. It should be set larger in the slicing software.
② The retraction speed is too slow. It should be set a bit faster in the slicing software.
③ The printing temperature is too high, which causes the fluidity and viscosity of the filament to be strong. The printing temperature needs to be set a little lower.
Nozzle is too low or too high when printing
① Nozzle is too close to the platform, resulting in insufficient extrusion of filament. Click “Settings” → “Z offset +” to rise the nozzle.
② Nozzle is too high and the gap is large, which lead to poor adhesion of filament to the platform. Click “Settings” → “Z offset -” to lower the nozzle.

ATTENTION

ANYCUBIC 3D printer generates high temperature. DO NOT reach inside of the printer during operation. Contact with extruded materials may cause burns.
Use high temperature resistant gloves when operating the product.
This equipment is not suitable for use in locations where children are likely to be present.
The fuse rating for the printer is 250V 5A. Never replace the fuse with one of a higher amperage, otherwise it may cause fire.
The socket-outlet shall be easily accessible.

Thank you for purchasing ANYCUBIC products! Under normal usage and service, the products and its parts have a warranty period up to one year. Please visit support.anycubic.com/en to report issues with ANYCUBIC products. Our professional after-sale service team would response within 24 hours and help you to solve the issue.