--- title: How to replace the X, Y, and Z drivers (BCN3D Sigmax) description:   This guide will help you replace the X, Y, and Z driver boards in case you need to fix any of the issues related to them.  Replacing X-Axis drivers Replacing Y-Axis driver Replacing Z-Axis driver   --- [Skip to content](https://support.bcn3d.com/knowledge/x-y-z-drivers-bcn3d-sigmax#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. [Sigma + Sigmax](https://support.bcn3d.com/knowledge/sigma-sigmax?hsLang=en) 3. [Troubleshooting](https://support.bcn3d.com/knowledge/sigma-sigmax?hsLang=en#troubleshooting) # How to replace the X, Y, and Z drivers (BCN3D Sigmax) | **Tools** | | | --- | --- | | ![allen-icon](https://support.bcn3d.com/hs-fs/hubfs/Knowledge%20base/Tools/allen-icon.png?width=21&name=allen-icon.png) | > Allen key 2.5 mm | | ![allen-2-icon](https://support.bcn3d.com/hs-fs/hubfs/Knowledge%20base/Tools/allen-2-icon.png?width=16&name=allen-2-icon.png) | > Allen key 2 mm | | ![socket-driver-icon](https://support.bcn3d.com/hs-fs/hubfs/Knowledge%20base/Tools/socket-driver-icon.png?width=75&name=socket-driver-icon.png) | > 5.5 mm Socket driver | ---   This guide will help you replace the X, Y, and Z driver boards in case you need to fix any of the issues related to them.  [Replacing X-Axis drivers](https://support.bcn3d.com/knowledge/x-y-z-drivers-bcn3d-sigmax#x) [Replacing Y-Axis driver](https://support.bcn3d.com/knowledge/x-y-z-drivers-bcn3d-sigmax#y) [Replacing Z-Axis driver](https://support.bcn3d.com/knowledge/x-y-z-drivers-bcn3d-sigmax#z)   **Note:** Before replacing any driver, turn off and disconnect the printer. | ![sigmax-turn-off-1](https://support.bcn3d.com/hs-fs/hubfs/Knowledge%20base/Sigma-Sigmax%20R19/Apagar%20impresora/sigmax-turn-off-1.png?width=459&name=sigmax-turn-off-1.png) | ![sigmax-turn-off-2](https://support.bcn3d.com/hs-fs/hubfs/Knowledge%20base/Sigma-Sigmax%20R19/Apagar%20impresora/sigmax-turn-off-2.png?width=459&name=sigmax-turn-off-2.png) | | --- | --- |   --- ### **Replacing the X-Axis drivers**   | **1.** Remove the two Allen screws of the Driver holder. | ![screw-icon](https://support.bcn3d.com/hs-fs/hubfs/Knowledge%20base/Tools/screw-icon.png?width=18&name=screw-icon.png)**x2 M3 8mm** | | --- | --- | ![](https://support.bcn3d.com/hs-fs/hubfs/image-png-Aug-06-2020-07-22-05-91-AM.png?width=539&name=image-png-Aug-06-2020-07-22-05-91-AM.png) **2.** Disconnect the flat cable and the other connectors. ![](https://support.bcn3d.com/hs-fs/hubfs/image-png-Aug-06-2020-07-22-17-44-AM.png?width=552&name=image-png-Aug-06-2020-07-22-17-44-AM.png) | **3.** Remove the two screws and washers of the Driver. | ![screw-icon](https://support.bcn3d.com/hs-fs/hubfs/Knowledge%20base/Tools/screw-icon.png?width=18&name=screw-icon.png)**x2 M3 6mm** ![washer-icon](https://support.bcn3d.com/hs-fs/hubfs/Knowledge%20base/Tools/washer-icon.png?width=30&name=washer-icon.png)**x2** | | --- | --- | ![](https://support.bcn3d.com/hs-fs/hubfs/image-png-Aug-06-2020-07-22-30-12-AM.png?width=306&name=image-png-Aug-06-2020-07-22-30-12-AM.png)   **4.** Assemble the new Driver with the spacer and holder with the same screws and washers in the same way as it was before. ![](https://support.bcn3d.com/hs-fs/hubfs/image-png-Aug-06-2020-07-22-46-66-AM.png?width=600&name=image-png-Aug-06-2020-07-22-46-66-AM.png)   **5.** Connect the flat cable and the other connectors to the Driver, and tighten back the two screws of the Driver holder. ![](https://support.bcn3d.com/hs-fs/hubfs/image-png-Aug-06-2020-07-23-07-99-AM.png?width=538&name=image-png-Aug-06-2020-07-23-07-99-AM.png) --- ### **Replacing the Y-Axis driver**   | **1.** Remove the two nuts and washers that are holding the Driver. | ![nut-icon](https://support.bcn3d.com/hs-fs/hubfs/Knowledge%20base/Tools/nut-icon.png?width=36&name=nut-icon.png)**x2 M3**  ![washer-icon](https://support.bcn3d.com/hs-fs/hubfs/Knowledge%20base/Tools/washer-icon.png?width=30&name=washer-icon.png)**x2** | | --- | --- | ![](https://support.bcn3d.com/hs-fs/hubfs/image-png-Aug-06-2020-07-23-32-30-AM.png?width=600&name=image-png-Aug-06-2020-07-23-32-30-AM.png) **2.** Disconnect the flat cable and the other connectors. ![](https://support.bcn3d.com/hs-fs/hubfs/image-png-Aug-06-2020-07-23-46-62-AM.png?width=416&name=image-png-Aug-06-2020-07-23-46-62-AM.png) **3.** Connect the flat cable and the other connectors to the new Driver. ![](https://support.bcn3d.com/hs-fs/hubfs/image-png-Aug-06-2020-07-24-11-34-AM.png?width=600&name=image-png-Aug-06-2020-07-24-11-34-AM.png) **4.** Assemble the new Driver in the correct position with the same spacer as it had before. ![](https://support.bcn3d.com/hs-fs/hubfs/image-png-Aug-06-2020-07-24-27-27-AM.png?width=420&name=image-png-Aug-06-2020-07-24-27-27-AM.png) --- ### **Replacing the Z-Axis driver** | **1.** Remove the cover by unscrewing the four marked screws. | ![screw-icon](https://support.bcn3d.com/hs-fs/hubfs/Knowledge%20base/Tools/screw-icon.png?width=18&name=screw-icon.png)**x2 M3 8mm**  ![screw-icon](https://support.bcn3d.com/hs-fs/hubfs/Knowledge%20base/Tools/screw-icon.png?width=18&name=screw-icon.png)**x2 M3.2 9.5mm** | | --- | --- | ![](https://support.bcn3d.com/hs-fs/hubfs/image-png-Aug-06-2020-07-25-18-01-AM.png?width=574&name=image-png-Aug-06-2020-07-25-18-01-AM.png) | **2.** Remove the two nuts and washers that hold the Driver. | ![nut-icon](https://support.bcn3d.com/hs-fs/hubfs/Knowledge%20base/Tools/nut-icon.png?width=36&name=nut-icon.png)**x2 M3**  ![washer-icon](https://support.bcn3d.com/hs-fs/hubfs/Knowledge%20base/Tools/washer-icon.png?width=30&name=washer-icon.png)**x2** | | --- | --- | ![](https://support.bcn3d.com/hs-fs/hubfs/image-png-Aug-06-2020-07-25-30-54-AM.png?width=600&name=image-png-Aug-06-2020-07-25-30-54-AM.png) **3.** Disconnect the flat cable and the stepper motor wire. ![](https://support.bcn3d.com/hs-fs/hubfs/image-png-Aug-06-2020-07-25-47-06-AM.png?width=574&name=image-png-Aug-06-2020-07-25-47-06-AM.png) **4.** Connect the flat cable to the new Driver. ![](https://support.bcn3d.com/hs-fs/hubfs/image-png-Aug-06-2020-07-25-58-76-AM.png?width=377&name=image-png-Aug-06-2020-07-25-58-76-AM.png) **5.** Assemble the new Driver in the correct position with the same spacer as it had before and then place the washers. Tighten the nuts and connect the stepper motor wire. ![](https://support.bcn3d.com/hs-fs/hubfs/image-png-Aug-06-2020-07-26-13-94-AM.png?width=600&name=image-png-Aug-06-2020-07-26-13-94-AM.png)   **Conclusions** It's important to check the flat cable connections before powering up the printer, you will find more information about this here: [How to check flat cable connections](https://support.bcn3d.com/knowledge/check-flat-cable-connections-bcn3d-sigmax?hsLang=en) #### [Forum Community](https://support.bcn3d.com/knowledge/bcn3d-forum-community?hsLang=en) Need more tips, check out our [**forum community**](https://support.bcn3d.com/knowledge/bcn3d-forum-community?hsLang=en) for more info about this   It's important to keep your printer in good shape to make the most out of it. In this chart, you can find a list of the extruder maintenance procedures and how frequently these should be done. [Maintenance Plan](https://support.bcn3d.com/knowledge/maintenance-plan-bcn3d-sigmax?hsLang=en)   ![bcn3d-recycle](https://support.bcn3d.com/hs-fs/hubfs/Knowledge%20base/Tools/bcn3d-recycle.png?width=27&name=bcn3d-recycle.png)  Take your e-waste to a certified recycler. [Check how we do it in BCN3D.](https://support.bcn3d.com/knowledge/environment-bcn3d?hsLang=en)   | **Parts** | | Buy these parts | | --- | --- | --- | | ![motor-driver-bcn3d-x-01](https://support.bcn3d.com/hs-fs/hubfs/Knowledge%20base/General/motor-driver-bcn3d-x-01.png?width=666&name=motor-driver-bcn3d-x-01.png) | BCN3D Sigma/Sigmax X stepper driver pack | [SKU 11930](https://www.bcn3d.com/product/driver/) | | ![motor-driver-bcn3d-01-01](https://support.bcn3d.com/hs-fs/hubfs/Knowledge%20base/General/motor-driver-bcn3d-01-01.png?width=666&name=motor-driver-bcn3d-01-01.png) | BCN3D Sigma/Sigmax YZE stepper driver pack | [SKU 11931](https://www.bcn3d.com/product/driver/) |   | --- #### RELATED ARTICLES | | --- | | [![check flat cable eng](https://support.bcn3d.com/hs-fs/hubfs/Knowledge%20base/Related%20Articles%20English/check%20flat%20cable%20eng.png?width=600&name=check%20flat%20cable%20eng.png)](https://support.bcn3d.com/knowledge/check-flat-cable-connections-bcn3d-sigmax?hsLang=en) | [![check mainboard fuse eng](https://support.bcn3d.com/hs-fs/hubfs/Knowledge%20base/Related%20Articles%20English/check%20mainboard%20fuse%20eng.png?width=600&name=check%20mainboard%20fuse%20eng.png)](https://support.bcn3d.com/knowledge/mainboards-fuse-bcn3d-sigmax?hsLang=en) | | --- | --- |   | **You can help improve the BCN3D Knowledge Base.** If you feel there are guides that we are missing or you found any error, please use this form to report it. **[Report form](https://share.hsforms.com/1F7t1sBuOQyWlAeRwwFSjgQ3fec5)** :) | | --- | - 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