The Boneheads Raven Skull demo came out reasonably well, albeit in a reduced size, on the Squidwrench Frank-o-Squid:
So I ran off a full-size version on the M2 for comparison:
The extruder apparently contained a gobbet of black PLA, left over from the Pink Panther Woman, that managed to hang on inside until the very tip of the beak:
Close inspection found two black strands closer to the base of the printed parts:
The rear of the skull joins the front just behind the eye sockets, where the solid bottom layers make a visible contrast with the air behind the perimeter threads elsewhere. Refraction darkens some of the threads, but the two black patches stand out clearly.
If it weren’t natural PLA, those flaws wouldn’t be nearly so noticeable.
Were I doing this stuff for a living, I might dedicate a hot end (or an entire extruder) to each color and be done with it.
All in all, the printed quality is about as good as I could expect from a glorified glue gun.
The extreme slowdown while printing the tip of the beak pushed Pronterface’s remaining time estimate over the edge:
I’m not sure what the correct value should be …