H2D Left Nozzle Bed Leveling

I’ve noticed that my H2D takes a little longer to level the print bed with the left nozzle than with the right nozzle.

Is this the case for you too?

Best regards,
Vakarian

I haven’t timed the process for each nozzle to know, but I have noticed that if my nozzle is a little dirty, auto bed leveling seems to re-check areas like it’s confused. If your nozzles are clean and everything is working properly, maybe it’s just the way it is?

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I have noticed the same issue with mine. Right nozzle does two probes per point. Left nozzle often needs several attempts per point. I have not yet contacted Bamu Lab about this.

Mine does the same, but I think it’s intentional. The left hotend is mounted on a retractable support that could develop some play and lose tolerances over time (hopefully not), so having multiple detection attempts should give more reliable results. The right hotend, being fixed, doesn’t have that issue.

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I don’t think you need to honestly… Sounds like the printer is doing its job, like insanesoul said.

Did you ever get a definitive answer to this question? I noticed too, it is taking a lot longer for my H2D to do the bed leveling with the left nozzle. It tries between 3 and 12 times (seems random how many times) at each point that it tests the level at, going up and down in microsteps again and again. Sometimes the bed will even suddenly lower 10-20mm and then it goes back up again and it tries again several times. I do not remember that it took this long when it was new, but I could be wrong.

I think the cause is that the left nozzle is on a rail, there for there is slight movement when tapping, causing it to tap multiple times. (Just a theory).

Same here. Brand new H2D. It takes ages to level with left nozzle.

Is BL already aware of this?

It was slower for me too. But now my H2D cannot do bed leveling with the left nozzle at all. Everything is clean and the printer is 4 months old. So, it is definitely not “as intended”.

EDIT: Right after posting this I googled the issue and found a WIKI page on Bambu web site about this. One of the reasons listed there was incorrect clipping of the nozzle. Checked and it indeed was incorrect on the left nozzle. Reclipped and printed 2 models. Bed leveling went smoothly without issues.

From the article:

This is how I had the left nozzle clipped: