tl;dr: An open-source motorized XYZ micro-manipulator built from off-the-shelf stepper motors, low-cost magnetic encoders, and a parallel kinematic (delta) structure, achieving 50nm resolution (though absolute accuracy is lower). It's controlled via G-code over USB serial, uses a custom RP2040-based PCB with no SMD soldering required, and includes FreeCAD models, firmware with 6DOF motion planning, and a Python API with GUI for applications like microscopy, probing, and optical alignment.