--- title: How to change the Y endstop (Sigma Series) description: EN ES   1. Go to Utilities/Maintenance/Move printing surface and lower the printing platform completely. 2. Turn off and disconnect the printer. 3. Remove the top Z cable cover, follow this guide to --- [Skip to content](https://support.bcn3d.com/knowledge/change-y-endstop-sigma-series#main-content) - [English](https://support.bcn3d.com/knowledge/change-y-endstop-sigma-series) - [Español](https://support.bcn3d.com/es/knowledge/change-y-endstop-sigma-series) 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](https://support.bcn3d.com/knowledge/change-y-endstop-sigma-series) - [Español](https://support.bcn3d.com/es/knowledge/change-y-endstop-sigma-series) 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 Series](https://support.bcn3d.com/knowledge/sigma-series?hsLang=en) 3. [Troubleshooting](https://support.bcn3d.com/knowledge/sigma-series?hsLang=en#troubleshooting) # How to change the Y endstop (Sigma Series) --- |   | [**EN**](https://support.bcn3d.com/knowledge/change-y-endstop-sigma-series) | [**ES**](https://support.bcn3d.com/es/knowledge/change-y-endstop-sigma-series?hsLang=en) | | --- | --- | --- | ---   | **Tools** |   | | --- | --- | | ![allen-icon](https://support.bcn3d.com/hs-fs/hubfs/Knowledge%20base/Tools/allen-icon.png?width=21&name=allen-icon.png) | > Allen key 2mm | | ![socket-driver-icon](https://support.bcn3d.com/hs-fs/hubfs/Knowledge%20base/Tools/socket-driver-icon.png?width=75&name=socket-driver-icon.png) | > Socket wrench 5mm | --- **1.** Go to *Utilities/Maintenance/Move printing surface* and lower the printing platform completely*.* *![Move printing platform](https://support.bcn3d.com/hs-fs/hubfs/Knowledge%20base/Sigma-Sigmax%20R19/LCD%20Screenshots/Utilities/Maintenance/Move%20printing%20platform.png?width=420&name=Move%20printing%20platform.png)* **2.** Turn off and disconnect the printer. | ![turn-off-d25](https://support.bcn3d.com/hs-fs/hubfs/Knowledge%20base/Packaging/turn-off-d25.png?width=336&name=turn-off-d25.png) | ![unplug-turn-off-d25](https://support.bcn3d.com/hs-fs/hubfs/Knowledge%20base/Packaging/unplug-turn-off-d25.png?width=336&name=unplug-turn-off-d25.png) | | --- | --- | **3.** Remove the top Z cable cover, follow this guide to do this: [How to remove the Z cable cover (Sigma Series)](https://support.bcn3d.com/knowledge/z-cable-cover-bcn3d-sigma-series?hsLang=en) ![sigma-d25-z-cover](https://support.bcn3d.com/hs-fs/hubfs/sigma-d25-z-cover.png?width=600&name=sigma-d25-z-cover.png) | **4.** Unscrew and remove the right inner trim. | ![screw-icon](https://support.bcn3d.com/hs-fs/hubfs/Knowledge%20base/Tools/screw-icon.png?width=18&name=screw-icon.png)**x4 M3 mm** | | --- | --- |   | **5. **Unscrew the nuts that hold the Y endstop. | ![nut-icon](https://support.bcn3d.com/hs-fs/hubfs/Knowledge%20base/Tools/nut-icon.png?width=36&name=nut-icon.png)**x2 M3** | | --- | --- | **![remove-y-endstop-d25](https://support.bcn3d.com/hs-fs/hubfs/remove-y-endstop-d25.jpg?width=600&name=remove-y-endstop-d25.jpg)** **6. **Detach the Y endstop and install the new one. ![y-endstop-d25](https://support.bcn3d.com/hs-fs/hubfs/y-endstop-d25.jpg?width=600&name=y-endstop-d25.jpg) **Conclusions** To reassemble the endstop follow the previous steps in the reverse order. #### **[Forum community](https://support.bcn3d.com/knowledge/bcn3d-forum-community?hsLang=en) ** Repair didn’t go as planned? Check out our **[forum community](https://support.bcn3d.com/knowledge/bcn3d-forum-community?hsLang=en) **for troubleshooting help.   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 | | --- | --- | --- | | ![x-endstop-component](https://support.bcn3d.com/hs-fs/hubfs/Knowledge%20base/Sigma-Sigmax%20R19/how%20to%20change%20endstop%20x/x-endstop-component.png?width=107&name=x-endstop-component.png) | Y endstop | [SKU 10941](https://www.bcn3d.com/product/endstop-2/) | | --- #### 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/flat-cable-connections-bcn3d-epsilon-series?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-epsilon-series?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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