But there are models with automatic bed leveling which significantly simplifies working with a 3D printer. For this reason, the calibration knobs are added to the bed. In budget models, it has to be done manually. To avoid the problems the user must regularly level the print bed. The error may also be caused by the user's actions, such as incorrect sticking of an adhesive tape to the print bed. This can be caused by a lack of a screw-thread fixator and bad quality of calibration knobs. This can cause the model to deform and its proportions and sizes to distort, as well as result in nozzle clogging (in cases when it’s very close to the print bed, and the plastic can’t be extruded). Usually, it’s manifested by wobbling during the printing process.ĭue to the bed’s deviation from the set level, the distance between the nozzle and the print bed changes by different values at different points. Not only can it be caused by calibration knobs but also due to gaps in all of the screw-type connections. The structure of an FDM 3D printer can become “loose” and less stable over time. The need to regularly check the level of a print bed is among the characteristics of such machines. The majority of FDM 3D printers are devices that require the active involvement of a user during the printing preparation process.
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