So I received some samples from eSun. One was the Color change filament. There are two kinds; UV and Temp. The results are…interesting.
Note, these filaments are based on PLA material.
As you can see, Marvin doesn’t have consistent change in 3D. Interestingly, I thought it was a density thing, but the head is denser than stomach, so that’s not it.
Here is another model with a consistent dimensional thickness. The results are much better.