Review on ESUN Filament Printer: Exact Diameter for Optimal Performance by Carlos Phillips

So far I've used Madesolid PET+ at $38/lb ($84/kg!) and once I got the right settings I've had really good luck with it. a thread. I will not go into the advantages and disadvantages of PETG, but would like to compare this white eSun PETG filament directly with the white Madesolid PET+ filament I use. The declared temperature range of Madesolid PET+ is 250-270°C. I've found this to be accurate and I need to work at 270C to get proper interlayer bonding. eSun states that their temperatures are best at 230-250°C. To test this, I printed hollow cylinders with one jacket thickness with each filament at 230°C to 270°C in 10°C increments. I used the exact same slicer settings for the two materials, except I increased the filament diameter from 2.85 to 2.90 for the eSun. After printing, each was cut with scissors, flattened and folded in both directions. Overall, Madesolid performed best at maximum temperature (270°C) and eSun also performed best at maximum temperature (250°C). The caliper of the two best samples was the same and the print quality was the same. Madesolid looked good on all settings but didn't hold together as well on lower settings. The eSun looked great up to 260+ where it arched and arched excessively. It didn't stick as well at lower or higher temperatures, but performed much better than Madesolid at lower temperatures. What about the overall quality? Well, the parts printed by eSun were much whiter than the Madesolid parts. The filament diameter seems to be a constant 2.9mm, although they list a range of 2.9 to 3.0mm. I was worried it would be too big for my Bowden tube but so far I haven't had any problems. Finished parts at a temperature of 250 ° C are strong, bright white and beautiful. In conclusion, I would like to say that this material is surprisingly good. And if you don't have an all-metal hot end, you can still run it at 240-250C and get great parts. For 1/3 the cost of Madesolid, that's really not a problem. I've read eSun's bad reviews about PLA, but PETG is nothing to fear.