New, Pre-Assembled Mini+ extrusion / print failures
Hi all!
This is my first post, as I only received my printer on Tuesday (This is my first printer as well, so hopefully that explains if I've missed any procedures I should have actioned). After I received my printer, it was love at first sight, after dialing in my adhesion on live z adjustments, I was out of the gates printing a pristine benchy, sheep, articulated octopus, etc for about a day and a half. Then disaster struck when I tried to go back and nail in the live z more. I followed the steps and gCode here and immediately noticed some strange behavior, that I later summarized to the mk2 profile built into the gcode. However, I have not been able to get a successful print since that point, despite multiple troubleshooting steps taken. At first, and still continue to, suspect under extrusion.. but I'm running out of options to try to resolve.
Below is a summary of the troubleshooting steps I have performed:
Troubleshooting:
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Cold pulls with white PLA (I have only run "galaxy" black prusament since receiving the printer) until the it pulls clean white
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Ensured the bowden tube is as seated as possible to the nozzle
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Factory reset - Live Z calibration code was run from ( https://forum.prusa3d.com/forum/original-prusa-i3-mk3s-mk3-assembly-and-first-prints-troubleshooting/life-adjust-z-my-way/ ), this was the start of noticing something was off, but it could be circumstancial. The gCode provided there is mapped to a Prusa mk2 profile, and while there was no m500 commands that could be observed, I didn't have any profile settings preserved on the printer that made it a hard choice to try a reset anyways
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Removed the extruder and cleaned the extruder gears, although this didn't show any debris or particles that may have caused the problem
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Changed over to white prusament test filament
Observed behavior of prints:
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First layer adhesion is fantastic, and backside of "prusa" logo is like glass on 2 example prints
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Layering degragation between test prints - First print lost quality near the "prusa" lettering, but was overall solid, the second test print maintained a good first layer, but the remaining layering was weak and the resulting print felt structurally inconsistent (like foam maybe?)
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White "prusa" logo print continued to show signs of under-extrusion, with each layer having inconsistent gaps of thinner, or more transparent, print thickness
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Second and third logo prints produced increasing amounts of stringing during the prints
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The third print was not stopped, rather, it started printing air around the 3rd layer and I let it run through the whole print cycle to completion
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There was actually a 4th print - Between (1) and (2), however, it was printing air so it was quickly stopped (Did some cold pulls at this point, and it resolved it enough to make print 2)
Where can I go from here? I'm pretty discouraged by the fact that the final print actually ended up being the worst of all, despite all the steps taken to try to better the behavior