Was really looking forward to this as a replacement to Siraya Techs HT HF ABS, unfortunately while there are some things it does better mainly in benchmarks actual printing experience is rather poor.
The Good
- Crazy good volumetric speed: I could hit 40mm^3 on occasion with no defects, and reliably all the time at 35mm^3
- Heat resistance: this benchmarks well comparable to Siraya tech
- Color Availability: Plenty of colors available as opposed to just black
The Bad
- Extremely difficult to print: 50% of the time loses bed adhesion after the first 5 layers or 3/4 of the way through a print.
- Dimensional Stability: This is easily the worst filament I've ever used when it comes to retaining shape, consistent sizing per print, and shrinking/warping during printing
-Surface Quality: No matter how dialed in the calibrations got and going from peak speed to half of the theoretical max layer adhesion is poor, no flow rate results in a smooth finish it either underextrudes, or overextrudes to the point of looking fuzzy, blobbing, etc
-Overall more demanding temps: Temps need to be roughly 20 degrees hotter on the nozzle and 15 degrees hotter on the print bed in order to have any chance of completing a print without losing bed adhesion, or having a ton of visible lines with banding and little lines from non adhesion
-Typical terrible Polymaker winding: We all know Polymaker does the worst job winding their filament, this filament is no different.
My overall take is that unless you have a chamber heater at a minimum, and max your heat on everything, you have no chance of printing this with any level of success consistently. While it benchmarks exceptionally, the real world application and use of this unfortunately does not match the potential. I'm giving it 3 stars instead of two, because i think if you can create the extremely demanding conditions required by this filament that potentially this could be a great filament for you.