LED Bed Leveling Tool - Ender 3
thingiverse
This 3D Printer Bed Leveling tool (Ender 3) uses a Pulse Induction Metal Detection Sensor and a LED Bar graph to show the relative distance from the Print Head to the hotbed. This is an independent add-on that does not require any code changes to printer firmware or wiring. It is easy to attach to check and tune bed levels. The sensitivity and stability of the device are illustrated in the video by applying downward or upward finger pressure on the hotbed to see the effect on the LED bar graph. The calibration button on the top of the unit is used to reset the baseline height and recenter the LED indicator to the center of the bar graph. Example of use https://youtu.be/8pMrbnkf4Nw https://youtu.be/zdHDqERBWbM
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