MINI Mesh bed leveling left half of test points going up not down
So this one is fun. Starting yesterday when I tried to do a print the mesh bed leveling is going UP not down to the bed when doing the test points. I recorded a video which i will link to below. I have seen a few videos similar on YouTube but the comments did not have a solution. I was running the 4.3 RC but I have since formatted and gone back to the 4.2.1 firmware and it has the same issue.
I have also verified that the cable is not tight and replaced all the zip ties and loosened everything to make sure nothing is snagging. as well as verifying that the connection in to the system board is sound.
Also this is a first run Mini received in February of 2020
RE: MINI Mesh bed leveling left half of test points going up not down
Watch the LED on top of the sensor. Compare the way it blinks on the right side of the bed compared to the left side and you'll see it's not blinking correctly because the wire is broken along the way but makes contact when the carriage is on the right side.
I just had the same issue with my Mini and replacing the MINDA with a new one fixed it. You can manipulate the cable and zip tie it to the Bowden tube to make it work OK for a while but it'll just do the same thing after a while. Mine was broken about 1/3 of the way between where it's zip-tied and the hot end. Of course, the day after I got my MINDA they released the SuperPINDA so now I've replaced it again. 🙂
RE: MINI Mesh bed leveling left half of test points going up not down
I received communication directly from Prusa support and the issue is that the probe has failed. they are going to ship me a new one to get it sorted out.