Inductive proximity z-probe adapter. Works with glass cover.

thingiverse

Note: this adapter will work for detachable probes only or as temporary attachment for calibration. You can't just add this adapter to permanently mounted probe that only 2-3 mm higher than nozzle. My aluminum Kossel bed is not so flat, so I covered it with 3mm glass. Much better, but inductive probe stopped working. Here is the adapter I made. You will need a #14 0.08" (2mm) nail and very light spring (I used one from this kit http://www.homedepot.com/p/Everbilt-Spring-Assortment-Kit-84-Pack-15642/202045461). Actually, it works even without spring because of the weight of nail/tip. You can replace the spring with thin U-shaped piece of plastic (PET bottle, etc). This modification doesn't affect the sensitivity and precision. Don't forget to adjust the z-probe height in firmware. I had to make one more :) How it works: https://www.youtube.com/watch?v=83hY3M8QLtg Animated probe video: https://www.youtube.com/watch?v=C8dT_2mZWXk Printed with PLA 180C, 044mm nozzle 0.2mm height 0.5mm manually set width 30 mm/s with slicer cooling enabled better to print together for optimal cooling Print Settings Rafts: Doesn't Matter Supports: Doesn't Matter