Precision Piezo Z-Probe Kit Piezo-Electric Hotend Z Probe Underbed Piezo Sensor for 3D Printers Revolutionary Auto Bed Leveling Sensor

pro: best precision i've had and i have used every type of sensor i can find to improve my accuracy on pei sheets. after tuning properly I had repeatable accuracy of 0.0025mm. The advertised specification is larger so I may have found a sweet spot in the tuning. still can't believe how nice it is to not have offsets and amazing accuracycons: tuning is difficult. there is a screw to be adjusted that can be very sensitive and sensitivity changed when I heated up the hot end. also it is pressure sensitive on the hotend and found that i had to tighten it more than I initially thought and was nervous about cracking or bending the disc. after an hour of playing with it though I had it tuned and am just amazed about the performance

The wiring in the picture is wrong!!! They ALL CONNECTED TO GND. Kill my control. board

Was not happy with this at all. Usually I am an advocate of buying off brands but I could not get this to accurately repeat and be sensitive enough. It was either too sensitive or not sensitive enough. Regardless of how it was setup. I tried both piezos they provided and none were able to work properly in an Prusa i3 style printer. I ultimately returned it. I was much happier with an FSR style probe that attaches to the nozzle tip. I will switch back to that one.

Got it working with no major problems. The piezo disc wires are super tiny and break easily, the discs are also pretty fragile. Damaged one of the discs soldering new wires on, thankfully it came with 2 hotend discs and I had better luck with the second disc. It's a little finnicky to get working, but once it's setup it seems good enough. My biggest gripe is Precision Piezo's lackluster instructions, granted this is basically a clone, so no fault to whoever made it.

I was very skeptical because of the price. But it work well on the bench for testing. Going to try in on a printer and see how it work. Only thing missing is some kapton tape to hold them to the heat bed.

Wired it to my Duet2 per the instructions and no LED light comes on. No change when probe is connected and triggered. PCB seems to be dead.

Set arrived as described. I am working on building a water-cooled print head assembly, so I plan to use this setup for the bed leveling. Seems like it should work perfectly for my setup!