Polymaker Sample Box 3, 2.85mm PA6-CF/GF Nylon Filament Samples, Carbon Fiber/Glass Fiber Reinforced Nylon 6 Filament, 2x100g, Print with 2.85mm Openning 3D Printers Only

This is a review I am shocked to be writing. First, delivery was fast, Amazon and the seller were on it.I am a huge fan of Polymaker, from their Polylite PLA & PCMax to Polymide CoPA I have never been anything but happy with Polymaker. After going through 4 spools of MatterHackers NylonX without a single useable part, their customer support gave up and said their product just couldn’t make the airplane parts I am making. I went searching for something tough, heat resistant and not as god awful warp crazy as NylonX. I found Polymide CoPA and that material is simply wonderful. No warp AT ALL, strong and prints like butter. It doesn’t have the stiffness of NylonX though so I had high hopes for PA6-CF and it comes in spools larger than the tiny 750’s CoPA only comes on (each of my parts are 450g). I’ve been so impressed with Polymaker I was going to just buy the 2Kg spool of PA6-CF (not on Amazon...it’s double the price of direct from Polymaker) but at the last moment I ordered this sample pack.Ok, Polymaker....you’re trying to sell a product here. Is the first experience for your client really supposed to be trying to get this stuff on a spool? You know it has to be printed from a dry box and I own yours in fact. Putting cold steel cable on a spool is about the only comparison I can make. First impression....yeah, that sucked. Ok, let’s print some airplane parts! Ok, a small corner of one.I have a test piece that I print that is a section of the leading edge part I make. It tests supports and bed adhesion pretty well. PA6-CF wants heat, but even at 298C, I’m not sure it’s flowing as it should be. It comes out of the brand new NozzleX .8mm nozzle like play doh and below that temp it barely came out at all. Surely the temps they quote aren’t for brass nozzles...they would wear into firehoses in half a kg of this stuff. It was clear very quickly that whatever this material needs, my machine is not going to provide it. Surface finish was terrible, flow was bad.I’ve gone through 8kg of Nylon this month, three of them CoPA and another kg of PCmax (bit too much warp for my parts). I’m not new to Nylon, didn’t seem wet...just really thick. I think this stuff requires more heat than a typical Amazon buyer is capable of giving it. Perhaps 298 out of a volcano with its longer heat path...but like anyone reading this review, I searched the internet for reviews of PA6-CF....and the few pics I found were of industrial parts that had really poor surface finish..I mean bad. I assumed they were printed by someone without much of a skill set. Now, I’m thinking that’s as good as it gets.One pic of the base of the part and supports where I stopped the print and the other with that same part printed in Priline’s Carbon fiber polycarbonate (really not a bad material for the cost but a bit CF clumpy).Very glad I didn’t buy 2KG of this material. I’ll say this though....it is strong. That little piece below the support....can’t break it with my hands. Can’t bend it. Pretty sure I could drive it into a board with a hammer. So, if you have a volcano and want to build an ugly hammer....this is your stuff. Someone post a pic of a pretty print and I’ll happily admit I lack the skill set to make this stuff work. Until that happens, I’m calling it industrial grade only....which frankly is kinda how they market it so perhaps I was expecting a bull to quack like a duck. Have not tried the -GF yet but will update my review when I do.Still love ya Polymaker, just ordered two more spools of CoPA before I started typing this novel.

This is tough stuff. I used these samples to tune my profiles and print some small parts before ordering a roll.Use the recommended temps. I printed on PEI with glue stick and it adheres fantastic.Tip #1... DRY EVERY TIME BEFORE PRINTING AND PRINT FROM A DRY BOX.

I found the quality of the filaments to be decent. I did not have any problems during my small test prints. However, the length of the samples are not continuous. I will need to weld some of the sections to print because they are only half a foot in length or less. This should be mentioned in the product listing so that the buyer can decide if they want to deal with that.

I got this as a sample pack to see if my new printer could handle these filiments. Honestly this would be better suited for a printer with high temp modification already.I have only tried the abs and I was amazed how well it stuck to the bed without an enclosure. I tried a different brand abs and have had nothing but problems with that one. But I am definitely going to get my abs from polymaker from now on.Sadly my printer can't reach reccomend temps of the others in this package. Not that I'm disappointed, it just means I will get to prioritize that high temp modification. I should have gotten the other assortment pack polymaker offers. Those are lower temperature and I could have printed them all.. it's on my list

I underestimated just how wet this sample would be, seemed well packaged with dessicant. I was wrong, I had water all up my extruder line from steam coming off. I'll probably bake dry it at some point, but for a sample, you'd think they would put their best dry foot forward.-customer service directed me to proper baking to remove the moisture and to help ensure a good print. Material works much better after baking.

When it says “random” colors, they really do mean RANDOM. I got a blind box of colors including several green, several red, and no blue.Worse, I got multiple materials, most of which I don’t have any use for and didn’t want. I realize the description says multiple material types, but the actual shopping box allows selection of a single material. I only wanted PVB, so I selected PVB. Apparently that’s just a suggestion, though, since I got everything else instead. This is, IMO, extremely misleading.Instead of a variety of colors in a material I need, I have a few colors mostly in materials I have no use for.The materials themselves are probably fine. Just don’t buy them here. It’s so random, it’s not even a good way to sample their products, since I didn’t get the actual products I wanted to sample!

The material is NOT dry, it pops and sizzles out of the bag so you have to dry it yourself. Also, not including a spool just makes this material a hassle the amount you "save" just isnt worth it. It is not more ecologically sound... and they dont pass savings onto you. Protopasta uses simple cardboard spools. This company is being plain ol cheap. Buy some filament that comes with a spool.

I wish I could write a good review. I wanted to try some of Polymaker's PolyFlex to see if it would work for me. So I got this sample kit. A sample kit is a good idea but I am not happy with the PolyFlex or even the PETG. The PLA prints fine. Everything else is going to the landfill as far as I am concerned. I tried different temps, I tried slicing the prints different ways, I even baked the polyflex in the oven at 170 degrees F since it is hygroscopic. This is ok for a sample pack but I'm beginning to wonder if Polymaker is any good at all! I may steer clear of any of their products from now on.

J'ai un utilisé ABS et surtout ASA avec acétone pour réparer ma pompe à insuline cassé.