--- title: How to set the K-factor for Pressure Advance description: The K-factor is a 3D printing calibration parameter that adjusts extrusion during acceleration and deceleration. It prevents over- or under-extrusion in corners and details. This article shows how to configure it to improve print quality. --- [Skip to content](https://support.bcn3d.com/knowledge/set-k-factor-for-pressure-advance#main-content) English Show submenu for translations [Contact support](https://support.bcn3d.com/knowledge/kb-tickets/new?hsLang=en) [Customer portal](https://support.bcn3d.com/repair-service?hsLang=en) ![knowledge-base-header-bcn3d-logo.png\]](https://support.bcn3d.com/hs-fs/hubfs/Knowledge%20base/Header/knowledge-base-header-bcn3d-logo.png?height=40&name=knowledge-base-header-bcn3d-logo.png) - [Default HubSpot Blog](https://blog.bcn3d.com/) Open main navigation Close main navigation - [Default HubSpot Blog](https://blog.bcn3d.com/) - English Show submenu for translations - [Contact support](https://support.bcn3d.com/knowledge/kb-tickets/new) - [Customer portal](https://support.bcn3d.com/repair-service) - [BCN3D forum](https://www.bcn3d.com/community/) [BCN3D forum](https://www.bcn3d.com/community/) Hello. How can we help you? - There are no suggestions because the search field is empty. 1. [Knowledge base - BCN3D](https://support.bcn3d.com/knowledge?hsLang=en) 2. [Omega](https://support.bcn3d.com/knowledge/omega?hsLang=en) 3. [Tips](https://support.bcn3d.com/knowledge/omega?hsLang=en#tips) # How to set the K-factor for Pressure Advance ## The K-factor is a 3D printing calibration parameter that adjusts extrusion during acceleration and deceleration. It prevents over- or under-extrusion in corners and details. This article shows how to configure it to improve print quality. --- BCN3D materials come with a **pre-configured K-factor** to ensure optimal print quality. However, when using **custom materials**, you need to set this parameter correctly to achieve the best results. *To load custom materials, please follow this article: [**How to use custom materials**](https://support.bcn3d.com/knowledge/how-to-properly-use-custom-materials-omega-i60?hsLang=en).*   After configuring the **temperature and alias** for your custom material, you will be able to enter its K-factor value. The printer will always display a **recommended standard K-factor** for these materials, so you can try this value first before making any adjustments. **[Here](https://support.bcn3d.com/hubfs/BCN3D%20Support/STL%20Files/K-factor.stl?hsLang=en)** you can find an STL file to test the value. | ![](https://support.bcn3d.com/hs-fs/hubfs/image-png-Jul-01-2025-08-23-57-8260-AM-png.png?width=480&height=800&name=image-png-Jul-01-2025-08-23-57-8260-AM-png.png) | | --- | --- Omega I60 uses a **specific conversion system** for the K-factor. Therefore, **standard Marlin values should not be entered directly**. If the results with the preset value (**0.0007**) are not ideal for the loaded material, you can always adjust the values in **±0.0001 increments** until you achieve the desired result. | ![](https://support.bcn3d.com/hs-fs/hubfs/1000024099-png.png?width=688&height=917&name=1000024099-png.png) | ![](https://support.bcn3d.com/hs-fs/hubfs/1000024100-png.png?width=688&height=917&name=1000024100-png.png) | | --- | --- | | PROTO | 0.0009 | | --- | --- | | IMPACT ABS | 0.0008 | | CUSTOM | 0.0007 | *Bear in mind that the pre-configured K-factor values for BCN3D materials cannot be modified; this option is only available for custom materials.* In case of doubt, contact our BCN3D support at **omega-assistance@bcn3d.com**   - [Omega](https://support.bcn3d.com/knowledge/omega?hsLang=en#main-content) - [Manuals & Downloads](https://support.bcn3d.com/knowledge/omega?hsLang=en#manuals-downloads) - [First steps](https://support.bcn3d.com/knowledge/omega?hsLang=en#first-steps) - [Maintenance](https://support.bcn3d.com/knowledge/omega?hsLang=en#maintenance) - 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