What is BL-Touch or BL-TOUCH FOR AUTO BED LEVELING?

 BL-Touch is a smart auto leveling sensor for 3D printers based on open source, which can precisely measure and adjust the distance between the build plate and printer nozzle in a simple and easy way. The complete BL-Touch device consists of a microcontroller, a solenoid switch, and a push pin probe which comes into contact with the bed.

Automatic leveling achieves via the collaboration between the BL-touch device and its firmware.

3D touch utilizes similar technology to that of the BL-Touch, a physical probe in conjunction with a Hall Effect sensor, which makes it a clone of the early version of BL-Touch. 

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