NXT EVO z-axis (slider), frequently jittering only at extremes (0 & 65535)
Posted: Mon Jan 06, 2025 20:57
Hello,
I've been having an intermittent issue with the z axis (slider/throttle), which frequently jitters just at both extremes. With the slider all the way to the Top or Bottom, the signal does not reach the expected value of 0 and/or 65535, and stays at a different value jittering, until the slider is moved a few times out of position and back (top or bottom), and then it works fine again, for a certain time. I'd like to emphasize, that in any other position, or when the problem is not present, the slider works perfectly fine.
I've noticed that the issue has increased in frequency and duration over time. I'm talking months, not days or weeks. It's a long term issue.
I've never changed the firmware since day one, as everything worked fine before, so I didn't want to risk any changes.
It looks like it could be a loose magnet problem, but I could not find any specific instructions to access the slider magnet/sensor, to check if there is anything loose, or any metallic particle that could be interfering.
I'm attaching images for you to see.
Please advise.
Thanks in advance
I've been having an intermittent issue with the z axis (slider/throttle), which frequently jitters just at both extremes. With the slider all the way to the Top or Bottom, the signal does not reach the expected value of 0 and/or 65535, and stays at a different value jittering, until the slider is moved a few times out of position and back (top or bottom), and then it works fine again, for a certain time. I'd like to emphasize, that in any other position, or when the problem is not present, the slider works perfectly fine.
I've noticed that the issue has increased in frequency and duration over time. I'm talking months, not days or weeks. It's a long term issue.
I've never changed the firmware since day one, as everything worked fine before, so I didn't want to risk any changes.
It looks like it could be a loose magnet problem, but I could not find any specific instructions to access the slider magnet/sensor, to check if there is anything loose, or any metallic particle that could be interfering.
I'm attaching images for you to see.
Please advise.
Thanks in advance