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  • Enable Auto Leveling for your 3D Printer with an inductive sensor (Marlin Firmware)

    Gentlemen, I am using the 6.36V (blue tipped). My results are consistent, and duplicable to within .05mm. I am however, not running my wiring the same as most. I remember seeing a comment on some youtube video I was watching while researching how to accomplish the autolevel upgrade(I really wish I could find the video or the comment, I would love to give credit where it is due, because this is NOT my origonal idea.) The commenter brought up the idea of using the 12v supply to the board (my board is ANET v1.0) then running the ground to the ground of the z-axis sensor, and the signal through a diode and into the other side of the Z-axis sensor. The Diode is 1N4001, the sensor is LJ18a3-8-Z /BX-G. This allows 5V (4.42V actual) of the 12V to pass under switch open condition, but when...

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    Gentlemen, I am using the 6.36V (blue tipped). My results are consistent, and duplicable to within .05mm. I am however, not running my wiring the same as most. I remember seeing a comment on some youtube video I was watching while researching how to accomplish the autolevel upgrade(I really wish I could find the video or the comment, I would love to give credit where it is due, because this is NOT my origonal idea.) The commenter brought up the idea of using the 12v supply to the board (my board is ANET v1.0) then running the ground to the ground of the z-axis sensor, and the signal through a diode and into the other side of the Z-axis sensor. The Diode is 1N4001, the sensor is LJ18a3-8-Z /BX-G. This allows 5V (4.42V actual) of the 12V to pass under switch open condition, but when the switch is closed, it will draw it low (0.24V). The only side effect of this system is that the LED on the switch itself is always on, but does get brighter when the switch is active.Any questions, just ask. If it wasn't for other people asking and helping eachother this would be an impossible hobby. Cheers!

    Gentlemen, an uptade:After I actually typed out the 0.05mm tolerance, it got me thinking. So I've spent the last 3 hours adjusting and tightening the "slop" in my machine, to see what kind of improvements can be made to this tolerance. Well, after 3 hours of tedious adjustment the repeatability deviation is now .002! I assume this is acceptable... Pic for proof.

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