I use it to calibrate the flatness of the desktop on a Delta 3D printer. The device was easy to install on the effector platform and the readings proved to be more than reasonably accurate and accurate (or at least stable). I don't have another calibrated meter to compare the readings with, so I'm basing my results. The only problem I've encountered after 100+ hours of use is that the readings get stuck from time to time. When this happens, a quick power cycle is all it takes to fix it. It was just a little annoying volume but depending on the activity I can see how this can be a real waste of time.
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