{"id":1547,"date":"2021-11-08T18:39:00","date_gmt":"2021-11-08T18:39:00","guid":{"rendered":"https:\/\/sybridge.com\/?p=1547"},"modified":"2023-07-18T10:22:58","modified_gmt":"2023-07-18T15:22:58","slug":"why-3d-printing-layer-height-matter","status":"publish","type":"post","link":"https:\/\/sybridge.com\/why-3d-printing-layer-height-matter\/","title":{"rendered":"Why Does 3D Printing Layer Height Matter?"},"content":{"rendered":"\n

Previously published on fastradius.com on November 8, 2021<\/em><\/p>\n\n\n\n

During the Fused Deposition Modeling (FDM) 3D-printing process, the 3D printer reads the digital file, divides the object into slices, and extrudes molten plastic material through a nozzle layer by layer to form the final part. The process seems straightforward, but there are many factors that can affect the quality of your final print, from your chosen material to the features on your design. The height of each individual layer in your part can also have a huge impact on the final product. Let\u2019s explore this in greater detail.<\/p>\n\n\n\n

3D Printer Layer Height 101<\/h2>\n\n\n\n

Layer height is a measurement of how much material the printer\u2019s nozzle extrudes for each layer of your part. It\u2019s measured in microns or millimeters, can be adjusted through a slicer program, and varies from project to project.<\/p>\n\n\n\n

Just as the number of pixels determines a television\u2019s resolution, a print\u2019s layer height determines its resolution. Lower layer heights require more layers to achieve the same height, which increases the part\u2019s quality and smoothness. Unfortunately, it also increases its print time, which correlates with an increase in cost. Taller 3D-printing layers take less time to print, which makes your part less expensive to print, but the trade-off is that parts will have a lower resolution.<\/p>\n\n\n\n

If your design is artistic, highly detailed, or must be incredibly precise, choose a lower layer height. Likewise, opt for a lower layer height if your part has holes, angles, or curved surfaces \u2014 otherwise, it may develop noticeable steps due to the layered nature of 3D printing. 3D printing with smaller layer heights can also help if your design has overhangs, as layers will overlap more. However, be wary of using thin layers below 0.1mm, as these increase printing time and the possibility of imperfections while offering diminishing returns concerning your part\u2019s visible quality.<\/p>\n\n\n\n

On the other hand, if you need to print a part quickly, keep costs low, or are prioritizing function over aesthetics, you\u2019ll want to use a larger nozzle and a taller layer height. A taller layer height means your printer has fewer layers to print to achieve the same volume, which speeds up the printing process and gives you a fully functional product at a lower cost. However, your part will also have fewer details and lower quality. The good news is that you can always sand, paint, or dip your product in an acetone bath to improve its appearance.<\/p>\n\n\n\n

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In addition to considering your desired balance of function and aesthetics, you will need to take into account the type of FDM 3D printer your part is being produced on when deciding which layer height to use. If your layer height is too low for the printer nozzle\u2019s diameter, it will struggle to push out the filament, but if it\u2019s too high the layers won\u2019t stick together. A good rule of thumb is to keep your layer height between 25% and 75% of the printer nozzle\u2019s diameter.<\/p>\n\n\n\n

Key Considerations for 3D Printer Layer Height<\/h2>\n\n\n\n

When deciding your layer height, you\u2019ll want to think about the specific 3D printing process you\u2019re using because some printers have smaller minimum layer heights. When printing a part via FDM, layer heights typically range from 0.05mm to 0.4mm, with 0.2mm being the most common.<\/p>\n\n\n\n

How do you decide whether to print on the higher or lower end of an acceptable range? The answer depends on your part\u2019s design and purpose. You\u2019ll want to ask yourself:<\/p>\n\n\n\n