Stronghero3D 3D Printing PLA Filament 1.75mm Epic Rainbow Multicolors Net Weight 1KG Accuracy +/-0.05mm

I ordered this even with the mix of good and bad reviews. I had no major problems printing with this. First I need to say I am brand new to 3d printing so any issues I may have had were likely due to that but the filament could be to blame as well. I am leaning towards my inexperience being the issue.I had some issues with it adhering to my glass bed even at 50-60c but it worked well enough on painters tape. I ended up doing my first layers at 210/215c and then dropping to 200c for the rest. That got me the adhesion I wanted. Printing the whole time at 215c didn't work that well so I backed it down.I am not doing large or detailed enough prints for the filament to have any major color changing going on. I see some streaks here and there but not like pictured. One figure I did just came out totally grey. Most of them look grey actually but have a shimmer to them at least. The part that shows the change in color best is a several piece part I did of a light switch cover. This one had some cooling issues, it curled up on 2 corners slightly but it still fit.I measured a small portion of this with a cheap digital caliper and the measurements I got were 1.5-1.7mm. Again this is a cheap tool but if you measure everything with the same tool you can generally compare the readings. This is not that consistent of a filament and it is likely I just have not ran into a big enough section to jam my printer yet.

Okay so first all the good things. I love the color of the filament. It was amazing it shines in the light. This was the first filament that was so cheap but good quality. I thought this was one of the few low cost filaments I could leave alone without supervision. I printed almost the whole roll before coming up with problems. At the end, 1.75mm roll it changed to 2.12mm a 64.75% increase in the filament size way out of spec for this. It caused my printer to fail because it couldn't go through the bore of the hole going to the extruder. It chewed the filament up until it was stopped by me. Other than that, it was okay.

I chose this rainbow PLA because of the low price and being silk. First time using this company's PLA, and at first I was surprised to see bubbles all throughout the filament despite still having a sheen common to silk PLA. The colors are ok, a little dark but unique. The color change happens slower than one would like for smaller things, but I found it worked best when printing multiples of those small items--like treefrogs (I printed a plate of 5 at 125% scale). The silk sheen is not as shiny as it could be, probably due to the underlying PLA not behaving like silks normally do, where they shrink back into the nozzle after extruding.I still have concerns about the moisture bubbles in the filament, they do cause popping when the nozzle is hotter and even caused a jam twice. After turning the temp down to 195 popping stopped and hasn't jammed again. Decent enough filament for the price and colors.

First the pro: Since I started 3D printing I have never had an issue using this filament. NEVER. That is something I cannot say about any other filament I have purchased. Adhesion and strength have never been an issue. I also never had an issue with moisture absorption. I would recommend to anyone looking for a reliable product.The one con: not my favorite colors. Kind of an odd green-gold to purple transition. Not horrible, but nowhere near as interesting (IMHO) as the product picture.

I'm not sure if there are multiple variants on this filament since the spool I received was nothing like the gun metal/silver shown in most of the product photos. The spool I received is more of a copper base with red, green and yellow tints as the spool progresses. At first I was disappointed that the color was not what I expected but once I started using the filament I was very pleased with the results. I followed the recommended printer settings and have had great results on my Monoprice Mini Delta every time. I would have preferred a silvery metal finish that some of the photos seem to depict but the rings I have printed with the spool I received are very high quality and look amazing so I can not give this filament a bad review. I just wish the seller would have updated the product description and images so that I got what I expected.

It prints just fine but the color is more of a bronze or coffee... I don't see any significant color variation and certainly no rainbow. I bought this when it was on sale knowing it might not be what I want so I'm not upset but I would NOT buy this again. Do NOT buy this if you want a bright colorful rainbow filament.Other than that, the filament is nice and in the end I kind of actually like the color.. I call it "Poop Rainbow".

This filament prints great once dialed in. For me, this needs to be printed ~20°C higher than most PLAs to get good layer adhesion. I haven't had any issues with stringing up to 205-210°C. The color change is fairly gradual, which for me is a plus since I plan to use this for larger prints and am looking for that effect. Prints have a nice iridescent sheen to them. To give an idea of how quickly/slowly the colors change, there are 4 main colors on my spool with about 3.5 cycles through the spectrum. That comes out to approximately one full color change per 70 g of filament.

only went from a very pale blue to a very pale purple with super long transitions, nothing like the pictured models. slight issue with the o.d. but nothing i couldnt live with, but still let down with the over all look of the product.. Love their single color filament so ill still use the brand but i wont be buying any more color transition.