2.85mm Silk Rainbow PLA Filament Multicolor PLA 3D Printer Filamentt 1KG Multi Color 3D Printing Material Gradually Canging Color PLA Rainbow Mulitcolor Metallic Color Gradient 3.0 mm Filament CC3D

All my prints have been great, print it a little hot and it comes out just fine. No adhesion problems either. The roll I got shifts mostly from a bronze to a blue-ish purple so far, but it's so pretty. My new favorite filament. Can't wait to try more from this company.

Ends up making a pretty neat pattern for certain trinkets. I usually don't use PLA, as I find the physical properties, and lack of post processing options a bit annoying, but for trinkets, it works just fine.

You really do need to purge and store it in an air tight bag or something! Don't get it get too old. The older/dryer it seems to get the more it breaks. I printed out this full roll pretty quickly, and had minimal issues with it breaking. Usually it would only break if I left it in the printer over night or over the weekend. Near the end of the role, it was breaking quite often, this may also be due to the smaller circumference of the role, the tighter curve seems to be more difficult for it, but otherwise, this printed from my Lulzbot Taz 6 just fine.

Just a bit of warning this is the 2.85mm vs the 1.75mm filament. For all the people that said it was bad and didn't feed you may want to check the problem isn't on your end. I didn't realize it until it showed up at my door. I really like the cc3d filament, it feeds great and looks good, my printer just doesn't take this size, going to go find the right size and try again.

Product worked as expected, print settings used are in screenshot.Pro's: Spool contains at least one DBL_Rainbow of color rotation and looks great on a wide range of prints, the metallic shine is not apparent until after printing, its more of a matte than a shine (see pic)Con's: Filament snapped 5 of 5 times within 20 minutes after successful printsOpinion: For less than $30 shipped to my front door in under 48HRS, there was no competition.Now I am not loving or hating this product, simply confirming that for $30, I got what I expected and don't have to buy 7-10 different color filament spools that I must keep stored with desiccant somewhere far from the printer.I propose a theory after researching for a total of 4 minutes on a smartphone and obtaining absolutely 0 responses from the MFR on the subject. Instead, entertaining my imagination and hopefully yours with my complete lack of facts to provide compelling arguments 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 filament was snapping at a weak point between the various color transitions of the spool because Johnny KPI says to reduce waste numbers and come up with a unique product to sell through Amazon that uses our recycled and leftover filament materials. One day Johnny stopped paying so much attention to the leftover filament spooler and just let it roll up a double rainbow of color that just wasn't comfortable linking to all of the other colors. And ever since then, the adhesion quality between each color on the spool remains slightly unstable and if heated slightly with a lighter for 15-20 seconds or so may reveal the seam between them. Perhaps some dust or failure was clouding up the air the night my spool was packaged, one will never know. All I can say is that I hope Johnny knows how to keep extruding it straight. He may one day get so good at it he will realize that his skills might be better used as a well paid Fiber Optics Splicing Technician and finally quit working in the Rainbow Silk factory of 3d Printing Filaments.

I like the pace that the colors are on the roll. They change frequently. It prints well. I'm buying more.

The color of this filament is beautiful and the price is good but I noticed something was off as soon as I loaded it into my printer and extruded a bit to prime the nozzle. The filament expanded to probably 3x the nozzle diameter. I’ve never seen filament expand like this. I don’t think it is saturated with moisture because it didn’t spit/crackle. I printed at 205°Strongly recommend against buying this filament.

36 hours printing results are excellent.....Noticed other reviews settings "speed" too fast. followed recommendations on label prints fine.Layer Height 0.1....print temp 200C.... print speed 55mm/s ......glass temp 40CUltimaker S5

Turned out well!Prints smooth and is not brittle, it is new.