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What's causing this?  

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jgalak
(@jgalak)
Eminent Member
What's causing this?

Printing in a generic PLA that I've printed before. Same stuff printed great a few hours ago with same settings but different model.

Mk3, steel PEI plate, Slic3R Prusa with the .20mm (FAST) profile and Generic PLA settings, with supports turned on.

This model has a lot of support below it - it's a curved dragon wing ( https://www.thingiverse.com/thing:1517785/comments ) that doesn't make much contact with the plate, so support. I stopped the print when I heard the printer head clicking against the model, was obvious something was sticking up.

Is this an adherence issue? Layer size issue? Something else?

Advice appreciated, still new to this.

Posted : 15/06/2018 3:22 pm
Gato
 Gato
(@gato)
Reputable Member
Re: What's causing this?

live z is too high. Go more negative. There is a nice thread "live z my way" that has a square you can use to tune your z correctly.

Posted : 15/06/2018 9:18 pm
jgalak
(@jgalak)
Eminent Member
Topic starter answered:
Re: What's causing this?

Thanks, will try that.

Posted : 16/06/2018 3:26 am
Calire
(@calire)
Honorable Member
Re: What's causing this?

@ juliean : how much is your live Z (the last and the new) ? and the version of the firmware (the last ?) ? a good cleaning of the heatbed ?

Posted : 16/06/2018 7:48 am
jgalak
(@jgalak)
Eminent Member
Topic starter answered:
Re: What's causing this?

My live-Z was at 950. Bumping it up to 980 or so seemed to make things better. A good cleaning of the bed (soap and water, then acetone, then IPA) also helped.

I tried the "my way" calibration" routine but got weird and inconsistent results. I'm going to do an extruder calibration next, see if that's part of the problem.

Posted : 16/06/2018 7:26 pm
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