Auto PA Calibration

I'm excited to announce this new sensor for the 3D printer. It allows the printer to quickly perform an auto pressure advance calibration and extrude a small amount of filament at the start of printing.

How it works?

1. PA Mode:

    Automated Pressure Advanced Calibration.

    Without printing calibration lines, it just simulate extrusion pressure behavior during acceleration and deceleration while only the extruder is working.

    This work process is similar to the Bambu Lab A1 printer, instead, we use  strain gauge, not eddy sensor.

2. Nozzle Probe Mode: 

     Use the strain gauge to sense the nozzle pressure while probing .

     It works as a normal switch endstop sensor, so we can just power it and connect the Z- pin on the mainboard. 

Here is the test video:

Automated Pressure Advanced Calibration with strain gauge