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?
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.
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.