K8200 / 3drag Auto Bed Leveling with Capacitive Proximity Switch
thingiverse
I need one PNP Capacitive Proximity Switch (PNP Capacitive Proximity Switch), model LJC18A3-H-Z/BY, and one each of BC107 or BC547 semiconductors. Also, a 100k Resistor is required. In addition, some shrink tubing will be needed. The estimated total cost is around 10 EUR, depending on the sensor's availability on various online platforms like eBay, Amazon, and Aliexpress. I created this solution myself, drawing inspiration from a design on thingiverse.com, where the thing number is 434665. Take note of the wiring used in my custom build, which you can see in the provided image. I utilize it with an actual Marlin version obtained directly from GitHub. However, there are two requirements: invert the Z-Switch setting in configuration and activate leveling to make the solution work seamlessly. To visualize the leveling feature in action, view a short video uploaded to YouTube: https://www.youtube.com/watch?v=P-rwXnoDe2o Edit: September 30th, 2014
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