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Pathogen
(@pathogen)
Estimable Member
second layer disintegration

Having gotten my MK3 running well enough to print lots of smaller nice things, I went right on ahead and tried the huge part of a 3D scanner project, and while the first layer went down well enough to allow print to proceed, the second layer was an apocalyptic failure! Any ideas?

Opublikowany : 19/07/2018 9:11 am
Pathogen
(@pathogen)
Estimable Member
Topic starter answered:
Re: second layer disintegration

Slowing the 2nd layer down via 'tune/speed' in control panel reveals something is preventing this particular 2nd layer to print at full speed ('0.2mm FAST MK3' newest version). In this case, 50% appears to produce acceptable results and 45% appears to be the lowest practical speed.

Does this 'tune/speed' option correspond to the Slic3r setting called 'Autospeed/Max Print Speed'? If so, given that the FAST MK3 profile has that set to 200mm/s, would the 50% 'tune' equate simply to changing this Slic3r setting to 100mm/s?

Also, is there something I should be concerned about in having to reduce speed to 50% for this print? I don't recall seeing this artifacting before.

Opublikowany : 20/07/2018 4:42 am
Pathogen
(@pathogen)
Estimable Member
Topic starter answered:
Re: second layer disintegration

The problem was I had reduced my extrusion temperatures too low, so I guess this affected extrusion adversely. Restoring temperatures to Prusa default corrected this and a few other problems. Instead of lowering temperatures to increase adhesion, I now clean the bed with soap. True story.

Opublikowany : 23/07/2018 1:04 am
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