--- title: Dual extruder and paste extruder upgrades (BCN3D+) description: Find all the information related to the BCN3D+ dual extruder and paste extruder upgrades --- [Skip to content](https://support.bcn3d.com/knowledge/dual-extruder-paste-extruder-upgrades-bcn3d#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. 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[Maintenance](https://support.bcn3d.com/knowledge/previous-models?hsLang=en#maintenance) # Dual extruder and paste extruder upgrades (BCN3D+) ## Find all the information related to the BCN3D+ dual extruder and paste extruder upgrades Notice this upgrades are not for sale anymore.  | **Model** | **Firmware** | **Manuals** | **Printed parts/CAD** | | --- | --- | --- | --- | | **Dual extruder** | [Download](https://github.com/BCN3D/BCN3DPlus-Dual-Extruder-Firmware) | [Download](https://github.com/BCN3D/BCN3DPlusandR-Manuals/tree/master/Dual%20Extruder) | [Download](https://github.com/BCN3D/BCN3DPlus-CAD/tree/master/Dual%20Extruder) | | **Paste extruder** | [Download](https://github.com/BCN3D/Paste-Extruder-Firmware) | [Download](https://github.com/BCN3D/BCN3DPlusandR-Manuals/tree/master/Paste%20extruder) | [Download](https://github.com/BCN3D/BCN3DPlus-CAD/tree/master/PASTE%20Extruder) |   **How to install the firmware** In order to change the firmware you need the following: - USB Cable - [Arduino IDE](https://www.arduino.cc/en/Main/Software) with [u8glib library](https://support.bcn3d.com/knowledge/dual-extruder-paste-extruder-upgrades-bcn3d#u8glib) - Firmware Code Once you have everything ready, follow these steps. - Turn off the printer - Plug the USB cable to the side of the printer. Your computer should detect it and assign a COM port. - Open the Arduino IDE and open the arduino file (.ino) located in the firmware directory. - In the Arduino programm --\> Tools --\> Board --\> Arduino Mega2560/ADK. In the same tools menu select your SERIAL PORT. - Click the *Right Arrow icon* that says **Load** If you get an **error message**, make sure that the [u8glib library](https://support.bcn3d.com/knowledge/dual-extruder-paste-extruder-upgrades-bcn3d#u8glib) is installed. If the error persits, try using [arduino IDE 1.0.6](https://www.arduino.cc/en/Main/OldSoftwareReleases#previous) instead of the latest version. - Wait for the progress bar to finish and the printer will reset itself. Then you can unplug the USB cable and switch on the printer. In order to install new libraries to the Arduino follow the next link. [Install Arduino Libraries](http://arduino.cc/en/Guide/Libraries) Download the u8glib library here: [u8glib Arduino library](http://dl.bintray.com/olikraus/u8glib/u8glib_arduino_v1.16.zip)   | --- #### RELATED ARTICLES | | --- | | [![install printing surface epsilon series](https://support.bcn3d.com/hs-fs/hubfs/Knowledge%20base/Related%20Articles/install%20printing%20surface%20epsilon%20series.png?width=688&name=install%20printing%20surface%20epsilon%20series.png)](https://support.bcn3d.com/knowledge/install-printing-surface-bcn3d-epsilon-series?hsLang=en) | [![hotend calibration epsilon series](https://support.bcn3d.com/hs-fs/hubfs/Knowledge%20base/Related%20Articles/hotend%20calibration%20epsilon%20series.png?width=688&name=hotend%20calibration%20epsilon%20series.png)](https://support.bcn3d.com/knowledge/hotend-calibration-bcn3d-epsilon-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) - 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