Top critical review
Low Density led to major under extrusion, multiple failures in prints.
Reviewed in the United States on December 7, 2019
I bought a roll of this since it was on sale, and decided to try it for a two color project. The calibration cube and a couple of other tests appeared to be ok, but when I started on heavier prints for the project I started to have major under-extrusion issues in random places. I took several spot measurements of the diameter of the filament, and it was all 1.70-1.80 mm. So I knew that wasn't the issue. Yet, as you can see in the picture of the tube, there are several layers with minimal filament present, where there should have been a 4mm thick wall. The tube mechanically failed about 1/3 of the way up where those major underextrusions occurred. Examining the failure points, there were random bits of filament, then a solid line, then random bits again, etc. I was able to separate these layers with minimal force.
Then I remembered that I had two calibration cubes printed with different brands of filament. Exact same g-code, so they should be really close in weight, right? Well, as you can see in the pictures, that was *not* the case. The Hatchbox PLA (black) weighed in at 5.47 grams, while the Overture PLA (red) weight 3.92 grams. Nearly 30% lighter!!! Sadly, this is not a good value if prints fail due to structural problems from underextrusion due to the low density of this filament.