PolymakerPLA PRO Filament 1.75mm, Tough & High Rigidity Black PLA Filament 1.75mm 1kg Cardboard Spool - PolyLite PLA PRO 3D Printer Filament 1.75mm, Print with Most 3D Printers Using 3D Filament

I usually buy cheap filament, but I was printing pieces for a filament rack that I plan to keep and have displayed on my workbench for a long time. I decided to buy some "higher quality" filament than I normally would for this, and it actually is very nice! Printed beautifully.

This is my go to for anything needing strength and resilience at room temperature. Bed adhesion is solid but use a glue stick if you have really small parts. Print hot and slow with good cooling and you will avoid stringing and the problems it causes. Stringing has not been an issue for me. I have not had any warping. The performance is unreal. You can smack a benchy with a hammer and it won’t break. The color is always good from Polymaker. Get ready to hate… I don’t dry my filaments. Ever. I keep them in a clean and dry space and have never had any issues. I haven’t had this or any other filament pick up moisture. If they have, it hasn’t caused problems for what I print. Moisture is not an issue and I live in the mid south where it gets humid in the summer.You can’t go wrong with this filament.

I have been printing for over 10 years and have used all the "best stuff" as that changed throughout the years. I have also spent a lot of time dialing in to different petgs which is a nightmare at times. I recently began printing some parts that needed superior strength and rigidity. This ruled out pla and petg, I considered asa or poly but those have challenges in getting a good print and need to be printed on polycarbonate plates, which requires me to use another printer besides my prusa, but I love my prusa 🤣, not that I don't love my other printers. Anyway, I ran across someone recommending this polymaker stuff and thought I would give it a go. I started with a prusa pla profile and made a couple tweaks and tried it out. My first print was gorgeous, beautiful layer lines and pretty easy to dial in first layer height and temp etc. Hotter temps tended to cause issues with corners curling on small squares, but dialing it back cured that, I settled on 200-210 and that works well. I had to adjust my extrusion flow rate for each color, they are not all the same so keep that in mind. Over extruding of course will cause issues with dimensional parts and this filament exaggerated it for some reason, but keep the temp reasonable and extrusion at the lower limit and you will get amazing parts. Here is where I had trouble, the filament is so strong and so cohesive that supports suddenly became a permanent piece of the part.It is hard to even cut with a knife, and sanding is not as effective as regular pla so the durability bites you in that regard. I had to take my xy spacing for supports from 50% to 75% and z spacing to .2mm. This eliminated my drooping lines (similar to what petg likes to do) and made the supports pull off often in one solid piece leaving a very clean part behind. With these little tweaks you will have great success with this filament and I swear it's near bulletproof. It has a soft feel in your hand but great rigidity and feels almost like an injection molded part, not ceramic like some pla. If I had to quantify it I would say it's 80% pla and 20% petg, not that it really is, but that's what it performs like. I highly recommend it and I don't think I'll ever buy anything else, bubbye hatchbox!!!Ps, I love the idea of a recyclable spool, but HATE IT in execution, if I could I would rewind it onto an old plastic spool. The spool gets bent and drags, it leaves cardboard shreds in the spool holder, it has a lot more resistance to rotating than a plastic one so I feel a poorly made or tuned extruder may slip while feeding. That is one thing that bothers me, but I guess I'll just have to deal with it cuz I love the filament.

Excelente

I expected to have better success with this, as friends have extolled the virtues of PolyMaker. I now think they may have been trolling me.I can't find a way to get this filament to print nicely. The spool looks clean and clear, and the filament has been free of tangles, but it will *not* adhere to the bed, and even with rafts and brims for support, still doesn't really want to do it. On a bed where standard PLA is a beast to pull free, this filament doesn't want to stick at all.I've tried multiple temperature towers and calibration prints to try to find the sweet spot for this stuff, but it just doesn't want to play nicely. I've heated the bed and nozzle through the full recommended range, and then both higher and lower than recommended, and nothing seems to work well with this filament. When it *does* stick, the layers are horrible, and while the filament itself seems nice and nothing is obviously wrong... it's just Sisyphean. Maybe after I go through another roll, I'll have figured out the magic...If this is just the joke filament to see how much spaghetti a person can print before throwing things, then well done! If you want a print that you don't have to babysit on any print surface that isn't a bed of hairspray on sandpaper for an ultimately subpar result, pick something else.