The Phrozen Sonic Mini 4K Upgrade Kit is a comprehensive enhancement package designed to significantly improve the performance, durability, and print quality of your resin 3D printer. Built with high-precision users in mind, this kit primarily focuses on reinforcing the Z-axis, a crucial element in producing consistent and detailed prints.

At the heart of the upgrade is a robust linear rail system, paired with a precision lead screw and a high-torque stepper motor. This combination dramatically reduces Z-wobble and layer shifting—common issues in stock setups—resulting in smoother surfaces and sharper details, especially in tall and complex prints.

The upgraded T-plate ensures a more stable platform for the build plate, while the included STL files allow users to 3D print custom components such as an extended Z-arm, protective covers, and a case extender. A drill guide is also included to ensure precise alignment during assembly.

In addition to the hardware, the kit provides optimized G-code files and software tweaks that allow faster printing speeds without compromising accuracy. Clear assembly instructions make the installation process straightforward, even for users new to hardware modifications.

Whether you’re printing highly detailed miniatures, jewelry, or engineering prototypes, this upgrade kit transforms your Sonic Mini 4K into a more professional and reliable 3D printing tool.