3D Hero PHA-1K175GRY05 Cool Gray PLA/PHA 3D Printer Filament Ø 1.75mm, 1Kg (2.2 Lb), Made in USA, Dimensional Accuracy: ± 0.05mm

Experience so far- QuestionableI ordered the MeltInk because it was significantly cheaper than the Colorfabb or Polymax PLA/PHA. Upon unsealing it and inspection the diameter of the filament was as consistent as it should be, although if you run your finger along a long strand of it, it isnt very straight, and that was a little concerning. When loading the filament, (flashforge Creator Pro) it seemed that the filament was coming out significantly thicker than ordinary PLA. I continued on to a print and it seemed to be printing fine, although it seems a bit gooier and stickier than other PLA. When the print completed, it was fused to the bed far stronger than any other material i have printed with. Upon removal, the bottom layers stayed fused to the bed and the rest of the print ripped off. In terms of finish consistency it was not nearly as good as a PLA print, however the layer to layer adhesion seemed to be better, other than where it ripped off. Through more testing, I havent been able to get a good consistent print out of it, and I think it has to do with the extrusion multiplier as well as the temperature. I imagine that once I dial these in, it will print better.

The MeltInk PLA/PHA blend is a good USA manufactured alternative to the Norwegian made ColorFabb. It extrudes very smoothly and the color and finish on the final prints is excellent. You will notice that it comes out of the extrude in a very thick fat strand. This doesn't seem to be a problem if you are printing in thicker layers such as 300 microns. The problem comes when trying to print this material in high resolution. It doesn't work. Printing in 100 micron layers is impossible as it just spits out in clumps rather than forming a nice smooth layer.This filament works great for printing large objects in low resolution and I like this cool grey color.. Unfortunately it cannot be used for very fine, high resolution prints.

I was interested in the PLA/PHA filament after I had read that it exhibited better strength/flexibility characteristics than standard PLA and I was also looking for an alternative to the ColorFabb PLA/PHA filament - both in terms of cost and I had read that it could be a bit difficult to work with. This looked like it would work, based on others reviews so I figured I would give it a try. I have printed a couple items thus far - I have my print temp set to 230C and have had good luck. It can clump slightly, but nothing that a little light sanding/cutting cannot fix for very fine detail. However, overall dimensions/warping appear not to be an issue. I am very happy with it's performance. The strength lives up to my expectations thus far as it seems less brittle - exhibiting yielding versus fracture (which is what I was looking for). This may be a good alternative for those looking for something that has more ABS-like properties without the need for a heated bed.

Melt Ink hits it out of the park again. This batch is much improved over the previous batch I ordered, fewer snags in the roll. I started printing with it at 2PM CST and I have had zero issues out of it. Process is within +-3 degrees of my standard "Melt Ink" profile and the flowrate is unchanged. Excellent work guys. The team at Melt Ink understands what is important when it comes to 3D printing materials, this is why I hold their material in reserve as the "premium" up-sell.--Lord Richard

I bought two colours of Meltink PLA/PHA, blue and grey. The grey is the worst, printing stringy messes that have no layer adhesion. It also seems to puff up or bloat as it comes out of the nozzle, running any sort of shape/geometry. Honestly Ive never seen a filament print so badly. The blue I could get to actually print, but it droops badly on the side without a fan.. so I position 3 big 120mm 12v fans around it and blasted it as it printed. No longer droops but the quality is really poor.Tried 195-240c print temps.Rostock Max V2 with Prometheus 0.6mm nozzleSliced with Simplyfy3DFor relative comparison, I usually use PETG or PC Plus polycarbonate or really cheap no name brand PLA I buy locally. All of these print just fine.I'm probably going to have to just bin it, first time in near 3years of 3D Printing Ive given up trying to get results out of a filament.

This is the only PHA/PLA mix I've seen on the market that's not made by colorfabb. The quality of finished prints are great and it boasts a higher flexibility than standard PLA. This does make it a bit more difficult to work with (layer cooling is absolutely required) but the results are rewarding. A well priced product with great quality.

Above average quality, consistency and general performance. Will buy again!

Great Filament. Have no print issues with it.