I already use the TinkerGnome ones, I changed the pid from the menu on the printer. And yes, with bowden setup I have this issue too. Last week I tried also to test with a different hot end, same results.
I just run the same gcode with 100%, 75% and without fan. Here are the results.
From left to right, 0%, 75% and 100% fan.
The one without fan is a little bit melted, but the results are nearly the same.
Now I will re-check the head bearings, the pulley and the XY allignement
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neotko 1,417
The PID bed indeed could be the issue.
You did set bed pid, but did you change the firmware? For example on UM (umo+, um2, um2+) the official firmwares are on bangbang mode, to use PID on the bed you need to build your custom firmware OR just install tinkergnome firmware.
Oh I see with bed off you get that too.
You use zge but with bowden that also happens? I mean, with zge the z noise can be almost removed with the z dampening change. But if that shows on bowden then I’m not sure except there’s some kind of play on the head bearings or the axes ain’t fully squared.
Other crazy idea. Try the same test without fan, even if gives bad quality because lack of cooling. Just to check the fans don’t affect the hotend temperature.
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