The product works as expected, the print settings used can be seen in the screenshot. Pros: The spool contains at least one DBL_Rainbow color change and looks great on a variety of prints, the metallic sheen doesn't show until after printing it's matte rather than glossy (see image). Cons: The filament broke 5 times out of 5 within 20 minutes of a successful print. Contest. Now I don't love or hate this product, I just confirm that for $30 I got what I expected and I don't have to buy 7-10 spools of different colors that I keep somewhere far away from the printer with a desiccant got to . I propose the theory after studying a total of 4 minutes on a smartphone and getting absolutely 0 responses from MFR to this question. Instead, I am entertaining my imagination, and hopefully yours, with a complete lack of evidence to make a compelling argument for either side. A quick visit to the MFG website (translated to English) reflects absolutely no filament products in the rainbow color option. Knowing this, I began to suspect that the thread snapped at the weak point between the different color transitions on the spool because Johnny is telling CPI we should reduce waste and create a unique product that can be sold through Revain that uses our recycled and leftover thread used . Materials. One day, Johnny stopped paying so much attention to the remaining spool of thread and just let it roll up a double rainbow of colors that was difficult to relate to all the other colors. And since then, the quality of adhesion between each color on the spool has remained somewhat unstable, and gentle heating with a lighter for about 15-20 seconds can reveal the seam between them. It's possible that some dust or a malfunction clouded the air the night my roll was wrapped, no one will ever know. All I can say is I hope Johnny knows how to keep straightening him. Maybe one day he'll get so good at it that he'll realize his skills could be put to better use as a well-paid fiber optic splicer and eventually quit his job at the Rainbow Silk 3D Printing Filament Factory.
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