With the increasing popularity of 3D printing technology today, PLA (polylactic acid), as a commonly used printing material, is favored for its environmentally friendly and biodegradable properties. However, when printing with PLA filament, there are often problems with plugs and poor wire production, which not only affects the printing efficiency, but also may lead to printing failure. This article will explore in detail the causes of these problems and solutions to help users better cope with these challenges.

First, plug problems are usually caused by improper print head temperature Settings, material impurities, or hardware aging. For the temperature problem, it is recommended to first increase the printing temperature to 230 C, and reduce the printing speed to 40mm/s, and the layer thickness to 0.1mm, in order to test whether it can print normally. If the problem is not solved, it is necessary to check whether the throat is aging, and if the front end of the throat is found to be significantly black, it is necessary to replace the throat and nozzle in time. In addition, check whether the extruder gear is snapped properly and loosen the extruder spring as far as possible to ensure normal feeding to reduce wear on the filament.

Secondly, poor silk production may be due to the characteristics of the material itself or the impact of the printing environment. PLA material is easy to harden at low temperature, resulting in difficult silk production. Therefore, it is recommended to turn on the air conditioner or use a thermostat in winter or when the temperature is low to keep the temperature of the printing environment stable. At the same time, the slice parameters were adjusted appropriately, such as increasing the extrusion rate of the first layer to more than 100%, setting the speed of the first layer to 10mm/s, and closing the first layer blowing fan to improve the fluency of silk production.

To solve the drawing problem, the key is to set the drawing distance and drawing compensation correctly. The drawing distance is too high, it is easy to lack material, and too low, it is easy to produce wire drawing phenomenon. It is recommended that the start point alignment function be turned on during slicing, and the Z-axis lift of the pullback be turned off to optimize the print path and avoid idle motion through the shell. At the same time, the printing temperature is properly reduced to reduce the fluidity of the material due to high temperature, thereby alleviating the drawing problem.

Non-stick bottom plate and warping edge problems are also common problems in PLA printing. First, you need to ensure that the printing platform is level and the distance between the nozzle and the base plate is moderate. If the base plate adhesion is insufficient, try to apply PVP solid glue or 3DLac base plate glue on the base plate, or replace it with pure glass base plate to improve the adhesion. In addition, adjusting the slice parameters, such as setting the bottom plate temperature to 45-60 C, enabling the bottom valve and skirt functions, can also effectively prevent warping.

In actual operation, the user can also prevent the plug and silk problem through some tips. For example, clean print heads and pipes regularly to ensure that no impurities remain; Before replacing the new material, thoroughly clean the pipe with a cleaning solution to avoid chemical reactions between different materials; And when the printer is not used for a long time, the nozzle is sealed to prevent the ink from drying up.

In short, the plug and the silk is not smooth is a common problem in PLA filament printing, but through reasonable temperature control, hardware maintenance, slicing parameter adjustment and environmental management, these problems can be effectively solved. It is hoped that the solutions provided in this article can help users improve the printing success rate and enjoy a smoother 3D printing experience.