WOL3D Bambu Lab A1 3D Printer Full-auto Calibration : It handles various calibrations all by itself. It meticulously calibrates the Z-offset, bed-level, vibration resonance and nozzle pressure for every print job, automatically.  Active Flow Rate Compensation : Bambu Lab A1 revolutionizes flow control in 3D printing. It utilizes a high-resolution, high frequency eddy current sensor to measure the pressure in the nozzle. Our algorithm actively compensates the flow rate according to the readings to extrude with accuracy. 1-Clip Quick Swap Nozzle : All-new quick swap hotend design, the hotend pops in and out with just 1-Clip. Multi-color Printing : The most reliable multi-color system. Active Motor Noise Cancelling : The A1 can calibrate parameters to match tiny individual differences between each drive motor. This compensates for the unwanted harshness of motor noise. Bed Slinger, with CoreXY Speed And Quality : Full-metal rails, rigid frame, nozzle pressure sensor, accelerometers, powerful MCU, and above all, an advanced motion control system that utilizes these features to print a 14-minute benchy with quality and following all the speed benchy rules straight out of the box without using specialized filaments. Build Volume : 256*256*256 mm. Supported Filament : PLA, PETG, TPU, PVA