Tribed Print Bed Autocalibration

Jeremie Francois developed his own method of automatic print bed leveling and calibration by using some force sensors, Arduino to communicate with modified Marlin firmware and three Z-axis lead screws.

Here are videos of his set-up in action:






Project homepage with detailed guide:

http://www.tridimake.com/2015/12/tribed-fully-automatic-bed-leveling-and-z-offset-adjustment.html

The project is still in development and further improvements are expected.

Source:

http://hackaday.com/2016/01/31/tribed-3d-printer-configuration-doesnt-ever-need-to-be-leveled/

FSR sensor on the bottom plate next to a Z screw

You can learn more about Force Sensing Resistors here:

https://en.wikipedia.org/wiki/Force-sensing_resistor