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Factors Causing Blobs and Zits and How to Prevent Them

If the retraction setting on your snapmaker laser engraving is not correctly optimized, the process might cause a negative impact, hence blobs and zits.

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Factors Causing Blobs and Zits and How to Prevent Them

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  1. Snapmaker

  2. Factors Causing Blobs and Zits and How to Prevent Them It is disappointing when a finished 3D print comes off the build platform with some defects and imperfections. Various defects might hinder your print quality, like a 3D printing small business suffering from warping, a print with stringing, or any other surface irregularities. Note that a lousy print wastes time and material costs. So, how can you spot and prevent these 3D print surface irregularities?

  3. In 3D printing, blobs or zits are extrusion irregularities that happen on the surface of a 3D printed part; they are apparent bits of oozed filaments that stick out from the print's surface. They are mainly caused by over-extrusion and the motion of the filament extruder. For instance, if you are working on a circular perimeter, blobs can be experienced when the print head gets back to its starting position. The material will build up at this point, resulting in a filament blob. The same is true with the 3D printer extruder; blobs and zits can occur when it starts and stops several times during the printing process. • The retraction of the snapmakercnc nozzle can also cause blobs and zits. How? In the FDM 3D printing process, there is a technique called retraction, where the hot end briefly pulls the filament back instead of extruding it out. This technique is mainly used to minimize unwanted material extrusion, such as strings, as the print head moves to a new print location. If the retraction setting on your snapmaker laser engraving is not correctly optimized, the process might cause a negative impact, hence blobs and zits.

  4. 3D nozzle temperature can also cause blobs; how? If the nozzle temperature is too hot, the filament can ooze out too quickly, causing defects on the print surface. Printing speed can be a factor; if it goes too fast, it will not give the layers sufficient time to cool. If the underlying layer has not been provided sufficient time to solidify adequately, it can be smashed and deformed by the weight of the layers above it.

  5. Therefore, what can you do to prevent these kinds of problems? • Adjust print temperature and speed by lowering them gradually until you find the right point so that you minimize the risk of blobs and zits. • Adjust the fan setting by increasing the fan speed to regulate the temperature of the 3D printing environment and prevent overheating. • Adjust retraction settings: you can adjust the retraction setting on the slicer software to control how much filament is pulled back into the nozzle and at what point this happens.

  6. As you continue 3D printing, you will be able to learn more tricks on how to avoid some problems or better and faster solutions. Be ready to learn new things and implement them to see how it works. Snapmaker is all about creativity, learning to unlearn, and so on. For technical issues, don't interfere with the making machine first, but call or email for assistance, and we will be able to help you quickly.

  7. Thank You! For More Email: info@snapmaker.com Web: https://eu.snapmaker.com

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