Common Issues with FDM 3D Printing Technology

    Fused Deposition Modeling (FDM) is the most popular and affordable 3D printing technology. However, it’s not perfect and can have its share of problems. In this article, we’ll discuss some common issues with FDM and how to address them.


    • Warping occurs when the bottom layer of a print curls up, causing the rest of the print to detach from the build plate. This can happen when the build plate is not level or when the temperature is too low. To prevent warping, make sure the build plate is level and increase the temperature of the bed.

    Layer Shifting

    • Layer shifting happens when a layer of a print moves out of alignment with the rest of the model. This can happen due to mechanical issues, such as a loose belt or pulley. To avoid this issue, check and tighten all mechanical components before printing.


    1. Stringing is when small strands of plastic appear between different parts of a print. This can occur when the extruder is not calibrated correctly, the temperature is too high, or the retraction settings are incorrect. Adjusting these settings can help prevent stringing.

    Poor Surface Finish

    • A poor surface finish can result from several factors, such as low-resolution settings or incorrect filament temperature. To achieve a better surface finish, increase the resolution or adjust the temperature settings.


    1. Under-extrusion is when the printer does not extrude enough plastic, resulting in a weak and brittle print. This can be caused by several factors, such as a clogged nozzle or a low extrusion multiplier. To solve this issue, clean the nozzle or adjust the extrusion multiplier.

    FDM 3D printing technology is an affordable and accessible option for creating 3D prints. However, it’s important to be aware of potential issues and how to solve them. By addressing common issues like warping, layer shifting, stringing, poor surface finish, and under-extrusion, you can achieve high-quality 3D prints with FDM technology.

    What type better fits FDM?

    FDM, or fused deposition modeling, is a type of 3D printing technology that uses a thermoplastic filament as a material to create three-dimensional objects. FDM is the most widely used 3D printing technology, mainly due to its accessibility and affordability.

    What process is invloved in FDM?

    The FDM process involves feeding a spool of thermoplastic filament into a heated extruder, which melts the plastic and then deposits it layer by layer onto a build platform to form the desired shape. FDM is a relatively simple and easy-to-use technology, making it popular among hobbyists, small businesses, and educational institutions.

    Limitations but still worthy of using?

    Despite these limitations, FDM 3D printing remains a popular and accessible technology that has the potential to revolutionize the manufacturing industry and make 3D printing accessible to more people.

    1. Limited resolution: FDM printers have limited resolution, which means that the final printed object may not have a very high detail or a smooth surface finish.
    2. Material limitations: FDM printers can only print with certain types of thermoplastic filaments, which limits the variety of materials that can be used.

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