X1C nozzle colliding the grid infill & blobs

Hello, Ihaz.

Sadly, I’m in the same boat. This has just started happening to me recently as well. I’ve dialed back the flow ratio to .91, increased the supports, and slowed the print “silent” (50%), dialed the firmware to factory settings, and it keeps happening. The hot end inevitably collides with the print and/or the supports ruining the print. I’ve submitted at ticket to Bambu yesterday, so we’ll have to see what they come back with.

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