BIGTREETECH Direct Eddy Duo Auto Bed Leveling Sensor, 3D Printer High Speed Auto Leveling Kit, Support CAN/USB Connection, for Voron2.4 Stealthburner Trident VzBOT Hurakan, Klipper Only

I will preface this with stating I have done no high temp ABS/ASA printing with this yet. This is running on a K1M with Simple AF software and it works really well. First layer is very nice every time. This probe is not ready to install out of the box it needs firmware and the correct version of Klipper to work. Bed mesh takes seconds and adaptive meshing is lighting fast. It is super important to get the calibration correct for this to work for you. The best way to confirm the calibration is to go through the process and then home everything and take the nozzle to Z 0. If you have a nice paper compression you will have nice first layers.

This has worked amazingly. It does suffer from heat drift, but that shouldn't matter for most people. I have a sv08 with a pretty warped bed, and I use this for a mesh and "tap" automatic offset calibration. As long as I move the head away from the bed while I heat soak the bed (up to about z 100) it works every time. If I leave it too close to the bed while it heat soaks, it fails tap calibration due to heat drift, but this is fixable by just cooling down the print head by moving it up again.

To preface this review, let me start by saying I build my own printers from the ground up. I have lots of experience in FFF, pretty much any and all firmware and *NIX, and I'm comfortable with all parts of the process. Now... to the Eddy: this was nothing short of a nightmare. After going through the piecemeal instructions and tutorials I could find, I compiled and updated all necessary firmware, got the device connected and responding... but it just doesn't seem to work. There is nothing deterministic about its setup and calibration. The process fails because the Eddy is too far away... fine... move it closer... something else fails... fix the other thing... voltage is out of range... fix that... another script fails... its UNREAL. Congrats to the few who've got this operating. I would rate the setup process as 90% random luck, 10% knowledge. After wasting about 2 weeks on it, I finally removed it and went back to my own capacitive discharge sensor which works 100% of the time. My advice is: don't waste your time. BTT needs to establish better instructions and test things a bit more before pushing this sensor out the door.

Very good level sensor .. just know does not work on beds that have individual magnets like the mk52 bed , and works with klipper . Please fallow instructions on the GitHub site to get up and running .

I'm really surprised to find myself the Eddy Duo 5 stars. I fought for a couple months with Eddy Coils and gave it up as wasted time and money. I decided to try the BTT Eddy Duo on a Ender 3 V2 by adding a steel bed sheet and simply tie-wrapping the Eddy probe's USB cable to the toolhead cable. Getting it setup is not as easy as the other probe but it seems solid and reliable. I'm using the homing and z-endstop functions and am delighted with the automatic layer offset.