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Anet ET4+ET4Pro 3D Printer Open Source Now Available

Anet ET4+ET4Pro 3D Printer Open Source Now Available

Written by David

August 19, 2020


With the rapid development of 3D printing technology, 3D printer users and enthusiasts have higher and higher requirements for the reliability and scalability of printing. How to achieve various malleable functions without changing the existing models has become the common expectation of users.


Anet will release the open source firmware code for ET4+ and ET4Pro model on August 17th. Once you have the source code, it’s like opening a Pandora’s box. DIY can bring you a lot of fun. Competent users and enthusiasts can follow the open source license to transform and re-develop the 3D printing system to meet the needs of use.


The firmware open source package developed by Anet Technology allows ordinary users and enthusiasts consumers to upgrade the firmware of existing products and complete the transformation of required functions. The open source of Anet official firmware depends on its continuous investment in scientific research of the industry, which not only allows more ordinary users to use “cutting edge” technological products, but also promotes the healthy development of the industry.


  1. Alicia

    “The firmware open source package developed by Anet Technology”

    I don’t know where 3dprintingtoday has obtained this info… But this firmware has not been developed by Anet. Marlin is developed by the community and it has been adapted by davidtgbe for the ET4/5 motherboard. Anet has just forked it after telling users that open source was not possible…

    You can check it:

    • David

      It was referenced in the article we linked-to in our post. From the article:
      The firmware open source of ET4+ and ET4Pro printers, it is now available on the Anet official website:

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