--- title: How to replace the driver spacer description: Learn how to change the driver spacer of your drivers to secure the connection of the FFC and avoid problems related to the disconnection of the cable --- [Skip to content](https://support.bcn3d.com/knowledge/update-drivers-install-flat-cable-clamps#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. [Tips](https://support.bcn3d.com/knowledge/tips?hsLang=en) 3. [3D printer](https://support.bcn3d.com/knowledge/tips?hsLang=en#3d-printer) # How to replace the driver spacer ## Learn how to change the driver spacer of your drivers to secure the connection of the flat cable and avoid problems related to the disconnection of the cable, like layer shifting or shortcircuits   --- |   | [**EN**](https://support.bcn3d.com/knowledge/update-drivers-install-flat-cable-clamps) | [**ES**](https://support.bcn3d.com/es/knowledge/update-drivers-install-flat-cable-clamps?hsLang=en) | | --- | --- | --- | --- | **Tools** |   | | --- | --- | | ![allen-2-icon](https://support.bcn3d.com/hs-fs/hubfs/Knowledge%20base/Tools/allen-2-icon.png?width=16&name=allen-2-icon.png) | > 2mm Allen Key | | ![](https://support.bcn3d.com/hubfs/image-png-Apr-11-2022-08-50-24-54-AM.png) | > Driver spacer with flat cable clamp | | ![screw-icon](https://support.bcn3d.com/hs-fs/hubfs/Knowledge%20base/Tools/screw-icon.png?width=18&name=screw-icon.png) | > M3x8mm screws x2 | | ![nut-icon](https://support.bcn3d.com/hs-fs/hubfs/Knowledge%20base/Tools/nut-icon.png?width=36&name=nut-icon.png) | > M3 nut x 2 | --- ### 1. Preparing the driver spacer - This upgrade is **compatible with the XYZ drivers installed in the BCN3D Printers** and is highly recommended to be installed on the X drivers.  - You can print the [driver spacer using the STL file](https://support.bcn3d.com/hubfs/Knowledge%20base/drivers/driver-spacer-ffc-clamp.zip?hsLang=en). We recommend printing it in PET-g and using a 0.4mm hotend. Before changing the driver spacer, would be necessary to install nuts and screws on the spacer. #### 1. Gently push the M3 nuts in the driver spacer to Insert them. ![insert-nuts-driver-spacer-update](https://support.bcn3d.com/hs-fs/hubfs/Knowledge%20base/Tools/Dise%C3%B1o%20sin%20t%C3%ADtulo%20(17).png?width=688&name=Dise%C3%B1o%20sin%20t%C3%ADtulo%20(17).png) #### 2. Insert the M3x8mm screws in the top side of the driver spacer ![insert-screws-top-driver-spacer Cropped](https://support.bcn3d.com/hs-fs/hubfs/Knowledge%20base/drivers/insert-screws-top-driver-spacer%20Cropped.jpg?width=688&name=insert-screws-top-driver-spacer%20Cropped.jpg) ### 2. Changing the driver spacer #### 1. Remove the driver spacer and the heatsink from the driver ![remove-driver-spacer-heatsink-1](https://support.bcn3d.com/hs-fs/hubfs/Knowledge%20base/drivers/remove-driver-spacer-heatsink-1.png?width=688&name=remove-driver-spacer-heatsink-1.png) #### 2. Insert the heatsink in the new driver spacer ![heatsink-driver-spacer-clamp-1](https://support.bcn3d.com/hs-fs/hubfs/Knowledge%20base/drivers/photoroom%20(4)%20Cropped.png?width=688&name=photoroom%20(4)%20Cropped.png) #### 3. Install the driver in the spacer with the flat cable connector facing the clamp area ![driver-installed-driver-spacer-clamp-update](https://support.bcn3d.com/hs-fs/hubfs/Knowledge%20base/drivers/photoroom%20(5)%20Cropped.png?width=688&name=photoroom%20(5)%20Cropped.png) #### 4. Place the top side of the clamp over the driver and sightly screw it ![driver-spacer-completely-assembled](https://support.bcn3d.com/hs-fs/hubfs/Knowledge%20base/drivers/photoroom%20(6)%20Cropped.png?width=688&name=photoroom%20(6)%20Cropped.png) ### 3. Installing the driver in your printer To install the driver in your printer, click on the picture corresponding to your printer model. | **How to replace the X, Y Z drivers** | | | | | --- | --- | --- | --- | | [![w27-epsilon-series-bcn3d](https://support.bcn3d.com/hs-fs/hubfs/w27-epsilon-series-bcn3d.png?width=125&name=w27-epsilon-series-bcn3d.png)](https://support.bcn3d.com/knowledge/x-y-z-drivers-bcn3d-epsilon-series?hsLang=en) | [![printers-sigma-d25-icon](https://support.bcn3d.com/hs-fs/hubfs/Knowledge%20base/Packaging/printers-sigma-d25-icon.png?width=107&name=printers-sigma-d25-icon.png)](https://support.bcn3d.com/knowledge/x-y-z-drivers-bcn3d-sigma-series?hsLang=en) | [![Sigmax-header-3-prints](https://support.bcn3d.com/hs-fs/hubfs/Knowledge%20base/Materials/Sigmax-header-3-prints.jpg?width=125&name=Sigmax-header-3-prints.jpg)](https://support.bcn3d.com/knowledge/x-y-z-drivers-bcn3d-sigmax?hsLang=en) | [![Sigma-header-3prints](https://support.bcn3d.com/hs-fs/hubfs/Knowledge%20base/Materials/Sigma-header-3prints.jpg?width=125&name=Sigma-header-3prints.jpg)](https://support.bcn3d.com/knowledge/x-y-z-drivers-bcn3d-sigma?hsLang=en) | ### Conclusions - Is highly recommended to install the driver spacer with the flat cable clamp in the X driver to secure the connection of the flat cable and avoid the disconnection of the cable due to the movement of the axis. - This upgrade is compatible with the Epsilon Series, Sigma Series, BCN3D Sigmax, and BCN3D Sigma printers. - If you have any doubt about this upgrade feel free to get in [contact with the support team](https://support.bcn3d.com/knowledge/kb-tickets/new?hsLang=en).   | **Send us your comments about this article** | [![feedback-button](https://support.bcn3d.com/hs-fs/hubfs/Knowledge%20base/Button/feedback-button.png?width=179&name=feedback-button.png)](https://share.hsforms.com/1F7t1sBuOQyWlAeRwwFSjgQ3fec5) | | --- | --- | |   **RELATED ARTICLES** | | | [![check flat cable eng](https://support.bcn3d.com/hs-fs/hubfs/Knowledge%20base/Related%20Articles%20English/check%20flat%20cable%20eng.png?width=335&name=check%20flat%20cable%20eng.png)](https://support.bcn3d.com/knowledge/flat-cable-connections-bcn3d-epsilon-series?hsLang=en) | [![replace driver eng](https://support.bcn3d.com/hs-fs/hubfs/Knowledge%20base/Related%20Articles%20English/replace%20driver%20eng.png?width=334&name=replace%20driver%20eng.png)](https://support.bcn3d.com/knowledge/change-extruder-driver-bcn3d-sigma-series?hsLang=en) |   - [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) - [Tips](https://support.bcn3d.com/knowledge/omega?hsLang=en#tips) - [Troubleshooting](https://support.bcn3d.com/knowledge/omega?hsLang=en#troubleshooting) - [Epsilon Series](https://support.bcn3d.com/knowledge/epsilon-series?hsLang=en#main-content) - [Manuals & Downloads](https://support.bcn3d.com/knowledge/epsilon-series?hsLang=en#manuals-downloads) - [First steps](https://support.bcn3d.com/knowledge/epsilon-series?hsLang=en#first-steps) - [Maintenance](https://support.bcn3d.com/knowledge/epsilon-series?hsLang=en#maintenance) - [Tips](https://support.bcn3d.com/knowledge/epsilon-series?hsLang=en#tips) - [Troubleshooting](https://support.bcn3d.com/knowledge/epsilon-series?hsLang=en#troubleshooting) - [Sigma Series](https://support.bcn3d.com/knowledge/sigma-series?hsLang=en#main-content) - [Manuals & downloads](https://support.bcn3d.com/knowledge/sigma-series?hsLang=en#manuals-downloads) - [First steps](https://support.bcn3d.com/knowledge/sigma-series?hsLang=en#first-steps) - [Maintenance](https://support.bcn3d.com/knowledge/sigma-series?hsLang=en#maintenance) - [Tips](https://support.bcn3d.com/knowledge/sigma-series?hsLang=en#tips) - [Troubleshooting](https://support.bcn3d.com/knowledge/sigma-series?hsLang=en#troubleshooting) - [Smart Cabinet](https://support.bcn3d.com/knowledge/smart-cabinet?hsLang=en#main-content) - [Manuals & Downloads](https://support.bcn3d.com/knowledge/smart-cabinet?hsLang=en#manuals-downloads) - [First steps](https://support.bcn3d.com/knowledge/smart-cabinet?hsLang=en#first-steps) - [Maintenance](https://support.bcn3d.com/knowledge/smart-cabinet?hsLang=en#maintenance) - [Troubleshooting](https://support.bcn3d.com/knowledge/smart-cabinet?hsLang=en#troubleshooting) - [Filaments](https://support.bcn3d.com/knowledge/filaments?hsLang=en#main-content) - [Tips](https://support.bcn3d.com/knowledge/filaments?hsLang=en#tips) - [PLA](https://support.bcn3d.com/knowledge/filaments?hsLang=en#pla) - [Tough PLA](https://support.bcn3d.com/knowledge/filaments?hsLang=en#tough-pla) - [TPU](https://support.bcn3d.com/knowledge/filaments?hsLang=en#tpu) - [PET-G](https://support.bcn3d.com/knowledge/filaments?hsLang=en#pet-g) - [BVOH](https://support.bcn3d.com/knowledge/filaments?hsLang=en#bvoh) - [PVA](https://support.bcn3d.com/knowledge/filaments?hsLang=en#pva) - [ABS](https://support.bcn3d.com/knowledge/filaments?hsLang=en#abs) - [PP](https://support.bcn3d.com/knowledge/filaments?hsLang=en#pp) - [PA](https://support.bcn3d.com/knowledge/filaments?hsLang=en#pa) - [PAHT CF15](https://support.bcn3d.com/knowledge/filaments?hsLang=en#paht-cf15) - [PP GF30](https://support.bcn3d.com/knowledge/filaments?hsLang=en#pp-gf30) - [PET CF15](https://support.bcn3d.com/knowledge/filaments?hsLang=en#pet-cf15) - [Metal Pack](https://support.bcn3d.com/knowledge/filaments?hsLang=en#metal-pack) - [BCN3D Stratos](https://support.bcn3d.com/knowledge/bcn3d-stratos?hsLang=en) - [BCN3D Cloud](https://support.bcn3d.com/knowledge/bcn3d-cloud?hsLang=en#main-content) - [BCN3D Cloud Teams](https://support.bcn3d.com/knowledge/bcn3d-cloud?hsLang=en#bcn3d-cloud-teams) - [Sigma + Sigmax](https://support.bcn3d.com/knowledge/sigma-sigmax?hsLang=en#main-content) - [Manuals & Downloads](https://support.bcn3d.com/knowledge/sigma-sigmax?hsLang=en#manuals-downloads) - [First steps](https://support.bcn3d.com/knowledge/sigma-sigmax?hsLang=en#first-steps) - [Maintenance](https://support.bcn3d.com/knowledge/sigma-sigmax?hsLang=en#maintenance) - [Tips](https://support.bcn3d.com/knowledge/sigma-sigmax?hsLang=en#tips) - [Troubleshooting](https://support.bcn3d.com/knowledge/sigma-sigmax?hsLang=en#troubleshooting) - [Tips](https://support.bcn3d.com/knowledge/tips?hsLang=en#main-content) - [Design 3D](https://support.bcn3d.com/knowledge/tips?hsLang=en#design-3d) - [3D printer](https://support.bcn3d.com/knowledge/tips?hsLang=en#3d-printer) - [Previous models](https://support.bcn3d.com/knowledge/previous-models?hsLang=en#main-content) - [Manuals & downloads](https://support.bcn3d.com/knowledge/previous-models?hsLang=en#manuals-downloads) - [Maintenance](https://support.bcn3d.com/knowledge/previous-models?hsLang=en#maintenance) - [Default HubSpot Blog](https://blog.bcn3d.com/) [![Chill listening crop-3](https://support.bcn3d.com/hs-fs/hubfs/Logo_200px_horizontal_negro.png?width=100&height=40&name=Logo_200px_horizontal_negro.png "Chill listening crop-3")](https://support.bcn3d.com/knowledge?hsLang=en) Knowledge base Copyright © 2026, BCN3D Headquarters