Multi-Color Printing: The all-new AMS lite is elegant and reliable, making multi-color 3D printing accessible to everyone. Active Flow Rate Compensation : The A1 mini 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. Full Auto Calibration: The A1 mini handles various calibrations all by itself. It meticulously calibrates the Z-offset, bed-level, vibration resonance and nozzle pressure for EVERY print job, automatically. Plug-N-Play: The A1 mini comes to you pre-assembled, pre-squared, and pre-tuned with precision. It only takes about 20 minutes to set up for your first print.