What things are less late maintenance maintenance, such as 3D printers, a long time without maintenance, there will certainly be some small problems or even big problems, so how to avoid the occurrence of it, the following are a few examples.
1. clean the nozzle motor on time
Whether the gap between the base plate is too small, the residual impurities in the nozzle, the use of material wire and conversion parameters are wrong, etc., resulting in the nozzle blockage, or the material disk winding knotted resulting in the nozzle can not be out of the silk, are going to make the nozzle motor runaway idle, feeding gear and material wire friction will form the slag deposited in the extrusion structure will interfere with the force distance of the wire feed, and may fall into the nozzle inlet, jammed into the nozzle material wire. Therefore, the user is proposed to do a nozzle motor cleaning after 1 month of normal use. If the user to 20 hours a day of high intensity use of the printer, it is proposed to do once every half month to clean.
2. maintenance of the printer optical axis on time
The X-axis and Y-axis (two axes in the horizontal direction) parts of the 3D printer do high-speed operation when printing. In order to reduce frictional resistance and noise, all the optical axes of the printer are greased at the factory. It is recommended that the user find the grease cartridge from the accessory box and wipe a layer of grease on all the optical axes of the printer at an interval of 2 months or when the noise of the printer increases. If the user uses the printer with high intensity, it is proposed to do the optical axis maintenance once every 1 month.
3. maintain the Z-axis screw on time
The Z-axis of the 3D printer is driven by a filament rod (the vertical axis). If after a period of time, the user feels that the noise increases when the Z-axis platform is operating up and down. You can find machine oil or ordinary lubricant to drop a few points on the filament rod from top to bottom, and then enter the control panel and manually manipulate the Z-axis motor to do 10 up-and-down movements to let the lubricant spread evenly to the surface of the Z-axis filament rod.
4. Regular maintenance of timing pulley set screws
The X-axis and Y-axis of 3D printer (two axes in horizontal direction) are driven by synchronous belt to do high-speed operation, and the synchronous belt pulley on the synchronous belt connecting axis is likely to be loosened during the long time of rapid forward and reverse switching. Suggest the user to use the 1.5mm hexagonal wrench to tighten the set screws of all synchronous belt pulleys once a month.
5. synchronous belt tensioning
3d printer after 1 year of use, synchronous belt may occur due to a long period of high-intensity stretching of slight relaxation, interference with the positioning accuracy of the nozzle. At this time, the timing belt needs to be tightened again to position. X-axis synchronous belt tensioning, first disconnect the printhead heating assembly plug, you have to use a 2.5mm hexagonal wrench to unscrew the two screws at the bottom of the printhead positioning aluminum block, the entire printhead module from the bracket to remove. Loosen the locking screws on the left side of the synchronous belt cover from the bottom of the bracket, the synchronous belt will be removed and then pulled tightly into the positioning slot again, lock the screws from the bottom, put back the printhead module and connect the printhead heating assembly plug.
Tighten the Y-axis timing belt, the first 1.5mm hexagonal wrench to loosen the four timing belt pulley set screws on the timing belt shaft, the timing belt near the front door side from the positioning slot, and then insert the positioning slot again after tightening. Push the X-axis platform to the Y-axis near the front door end, use vernier calipers to measure whether the two ends of the X-axis platform is parallel to the front side beam, and finally lock all the timing belt pulley fixing screws.
After the timing belt is retightened, print a 20mm test block to check whether the four sides of the block are vertical. The more likely error when the timing belt is re-tightened is that the two Y-axis timing belts are positioned with deviation, resulting in the X-axis platform not being perpendicular to the Y-axis and the printed test block having deviation in perpendicularity on all four sides. If this problem is found, the positioning of the Y-axis synchronous belts needs to be readjusted.