As the price of FDM desktop-class 3D printers has become more popular, more and more makers have chosen to add a device to themselves. However, in the course of use, everyone will encounter a variety of use problems, mainly: the equipment will not go wrong! At this time, if you can't find the crux of the problem, it will take a lot of time to repair the machine, and the result is often unpleasant. Xiao Bian today to summarize some common 3D printing machine failures, and the crux, hoping to help you save a lot of precious time.
Fault 1: The 3D printer needs to stop and rest after working for a while, and then it will resume normal work.
The temperature of the 3D printer is unstable during operation, and when it falls below the minimum temperature, the extruder stops rotating. There are mainly the following solutions:
1. Set the temperature at which the 3D printer prints to the same temperature as when printing the first layer, so that it remains uniform.
2. Increase the overall temperature so that the temperature of the extruder head does not fall below the minimum temperature, which can effectively avoid the forced stop phenomenon.
3. Reduce the original minimum temperature set to prevent the temperature from falling below the minimum temperature.
Fault 2: After the power is turned on, the board does not respond to this situation. You can gradually eliminate the fault by following the steps below:
1. First check whether the wire ends of each part are loose, connect the loose parts, and conduct the power test.
2. Whether the fuse in the power socket is damaged, if the damage is worse, the power is tested.
3. Is the power supply damaged (note the power supply voltage), check the standard: If the power supply board is still not showing after the loss of the fuse, the power supply is considered damaged and a new power supply test is replaced.
4. If there is no problem with the above steps, the board will still not respond after power-on, then the board will be damaged and will be tested after replacement.
Fault 3: Loss of step in the printing process According to Xiaobian, the lost step may be caused by the following factors:
1. The printing speed is too fast, and the X and Y motor speeds are appropriately reduced.
2. The motor current is too large, causing the motor temperature to be too high.
3. The belt is too loose or too tight.
4. If the current is too small, the motor will lose its step. If the current is too large or the current is too small, the current can be changed to modify it.
Fault four: stepper motor jitter, not working properly
Stepper motor phase sequence is wrong, adjust the line sequence. The adjustment method is to change the two interfaces that are close to the side of the corresponding motor line port.
Fault 5: The abnormal sound of the card issued by the extruder during the printing process
It should be the plug of the extruder, for the following reasons:
1. The selected materials are inferior, the thickness is not uniform, the bubbles are more impurities, and they are not completely melted;
2. If the temperature of the print head is too high or used for a long time, the material will be carbonized into small black particles and blocked in the print head;
3. It may be a heat dissipation problem.
4. When changing materials, the residual material is not cleaned and will remain near the feed bearing or conduit.
5. See if your feed gear is worn or has too much residual material and insufficient torque.
6. It may be a model slicing problem because the GCODE generated by the slicing software is not uniform. Some segments will be faster, which can cause kaka sounds.
Solution:
1. Try to adjust the other materials first.
2. Use a tool similar to acupuncture needles to clear the print head.
3. Clean up the feed gear.
4, go to the printer's after-sales maintenance personnel, the warranty period of domestic printers is generally one year.
5. If you are using DIY or used machines, it is recommended that you dismantle and disassemble, and by the way, understand the structural principle.
6, if you can't, then you can only replace the print head.
Are you getting these skills? The next time you encounter a 3D printer failure, look up and look at it, no need to go around like a headless fly.
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