🔧 Unified 2 Firmware 2.83a Release Update

We are excited to announce the release of Unified 2 Firmware version 2.83a, bringing a series of improvements, bug fixes, and new features to enhance your 3D printing experience. Here’s a breakdown of what’s new in this update:

Critical Fixes for Seamless Compiling

One of the primary issues addressed in this release was a compiling obstacle linked to the U8Glib-HAL library. Swiftly identifying and resolving this challenge on the same day, we want to assure our users that this was not a TH3D issue but a third-party library hiccup. To prevent such occurrences in the future, we’ve implemented a version lock on the library, ensuring tighter control over firmware compilation.

Enhanced Control Over Libraries

We’ve taken steps to bolster our control over third-party libraries by moving some of them to our dedicated GitHub repository. This strategic shift empowers us to manage and update libraries more effectively, reducing the likelihood of unforeseen library-related disruptions to the firmware that we’ve seen 2 times now over the last 6 months.

New Printer Support

In our continuous effort to expand compatibility, Unified 2 Firmware now supports the CRX-Pro model. Please note that this requires the LCD Kit for optimal functionality.

New Features

  • Skew Correction: We’ve introduced skew correction to all configurations, enhancing print accuracy and quality.
  • EZABL NG-8 Support: Ender 5 S1 printer users can now benefit from EZABL NG-8 support, provided they have the LCD Kit.


  • Reduced E Current: To mitigate excessive E temperatures, we’ve lowered the E current by 0.05A in TMC configurations.
  • Advanced Features Overhaul: The Advanced Features section has undergone a complete revamp, making it more user-friendly and understandable across all configurations.

Bug Fixes

  • E Max Speed Adjustment: Addressing stalling issues related to high retraction speeds, we’ve slowed down the E max speed on 2560 board configurations.
  • U8glib-HAL Compile Issue Fix: Resolved compilation issues stemming from updates to U8glib-HAL by locking in version 0.5.2.
  • EZBoard V2 Compile Issues: Fixed compilation problems on the EZFirmware site associated with the EZBoard V2.

Quality of Life Enhancements

  • Version Information: Configuration.h files now display the version number at the top.
  • Distribution Date: Configuration.h files also feature the distribution date at the top.

We appreciate your ongoing support and feedback. The TH3D Studio team is committed to refining and expanding the Unified 2 Firmware to meet the evolving needs of our community. As always, feel free to reach out to us if you have any questions or encounter any issues.

Happy Printing!

Timothy Hoogland
TH3D Studio LLC