Does the "booger" on the hotend mess up the z-index auto measurements?

Bambu Lab X Series Bambu Lab X1C
1

I’d like to know what the experts think about this scenario.

On occasion when the bed is auto-leveling and calibrating etc., before a print - I will notice a piece of filament (could be a blob, could be a strand) that did not wipe off successfully, attached to the hotend- at this point - I usually cancel my print and start over.

It has been my experience that this piece of filament MAY mess up z-index calculations. The only evidence I have of this are occasional prints that fail because the z is a tad too high - or I see nozzle lines or lifting in the first layer.

Has anyone else experienced this?

Also is it absolutely necessary to go through the 7 mins of prep before every print? I remove the build plate to pop off my prints, so I assume so.

Thanks

2

Yes, I have experienced this too.

And no, you can shorten the start up by removing ABL and auto-calibration as an easy option. There’s also the possibility to shorten the start-up gcode.

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3

I occasionally resent that wasted time… then I think about how few failed prints I get and how much time a print failure wastes and I get over it. In the end, I feel like the whole song and dance is worth it.

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