Real-Time Measurement Eddy Current Distance Sensor

BD Sensor is a distance sensor compatible with various 3D Printer firmware able to do fast bed leveling and z-axis adjustment in real time without needing to move and down on the measurement axis for a distance reading on any conductive surface.

Your Toolhead Unstuck from the Past:

• Equipped with active compensation, BD Sensor doesn't need to wait for a bed mesh before every prints for accurate Z-offset calibration, it simply adjusts to the proper distance in real-time.
• Still, it serves your need for flexibility--allowing for lightning fast meshing if you so choose.
• Headache-free Tramming: Manual bed leveling is made easier than ever with live distance reading right to your screen. No more guess-and-check.

Hardware

• It can connect to most motherboards or GPIOs on the RaspberryPi
• Easy to install: small and light; can be installed anywhere, even surrounding metal above
• CAN bus Supported
• High Temperature Ready (120C Rated) 
  
  
  

More info

• Bed leveling sensor | Hackaday.io
• bd sensor (eddy bed level) | Wiki
• markniu/Bed_Distance_sensor: Auto bed level with High resolution distance sensor
• BDsensor M · markniu/Bed_Distance_sensor Wiki