Nozzle Clumping - Auto Clean Nozzle Feature Request

Bambu Lab H2 Series
1

Bambu have done some amazing things with the H2D vs the X1, P1P, A1 etc etc, but I just dont understand why when nozzle clumping is detected, instead of stopping the print and requiring manual user intervention (which could be when I am sleeping) instead it pauses the print and attempts to clean the nozzle itself ?!

Given the already advanced features and functions, this must be quite easy and I really don’t understand why this is not implemented.

so, unless there is a very good reason for not doing this, i.e. safety, which I cannot think of any issues, please implement this soonest.

Maybe it could try a few times and if unsuccessful, only then prompt the user for manual cleaning.

Might be useful to alert the user with a message, but not one that requires manual intervention to resume.

Or is there something I have not considered ?

Thanks

PeterC

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2

You raise a fair point: if the blob is large enough to threaten the toolhead, an automatic clean could do more harm than good. I’d much rather wake up to a paused job than a non-functional printer.

If an auto-clean feature is considered, it must first assess severity and risk (size/shape of the blob, hardness, location relative to belts/wiring, nozzle temperature/position, motor torque limits, etc.). Only then should it choose between:

  • pausing and alerting the user (safe default),
  • a gentle, limited clean sequence,
  • or requesting manual intervention.

There are plenty of cases where auto-recovery makes sense (light stringing, small boogers, brim whiskers). But for true clumps, detection often happens late, and the safest choice is to pause instead of push through.

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