YOYI YOYI 3D Printer Filament, 1.75mm TPU Flexible Filament, 1KG Spool (2.2 lbs), Soft, Black

At first I thought my bed leveling was out as this would not stick. Then realised the recommended print temperature was different to my previous brand. Pushed up the temperature for the first layer to 210 and can print to a 60 bed. Dropped temperature for subsequent layers depending on print. Leave it hot if there are no travels and drop to 190 if the print needs hops. I run it at 40mm/s any faster seems to invite trouble. This is tough stuff. A 0.2mm layer cannot be torn apart.

Great results with the same standard settings as normal PLA. Nice flexibility. The prints are not like soft rubber but shiny almost greasy feel to them. It’s not a squidgy rubber feel but hard yet flexible. I’m sure experimenting with internal structure would change the feel. I printed a 2 inch ring and it’s virtually indestructible. Where a normal PLA would snap if twisted with force this just deforms then returns.

Used their PLA which I pure crap breaks and falls apart but this flexible fillament is easy to use and prints great for a flexible fillimant. I'm printing on an Ender 3 pro with no real upgrades for flexibles and not had a problem with this yet unlike some others that really need a direct feed.

Having never printed anything apart from PLA before, I was very tempted to try this TPU as it was available for such a reasonable price. I was extremely impressed with the quality packaging and printed with the default settings. There was more stringing than I am used to (although that is to be expected with TPU) but after changing a few settings (like setting the retraction to 0.4mm at 30mm/s) this is reduced greatly. I recommend printing slowly at 210°C to get some superb quality prints. Very impressed with this filament and am planning on trying out some other materials from YOYI very soon.

First attempt with flexible filament. Used "Ender 5pro" recomended settings and worked first time. Make sure to turn off retraction and I printed at 20mm/s, nozzle at 215C bed at 50C. Stiffness can be altered by %infill.

Regrettably it doesn't work with my printer - a Wanhao Duplicator i3 Plus. The printer has a fairly standard feed where the drive wheel is above the heated nozzle. Unfortunately there must be enough of a gap between the drive and heated feed tube that the filament can kink resulting in a loop of filament above the feed tube. As soon as it kinks it stops pushing through the nozzle. It might work with a bauden tube type feed but I think it would compress and twist inside the tube. In summary the filament is too flexible to use with my, or similar, printers. I spent too long before I tried it so couldn't return it. :-(

I find this prints well around 220c for me on both of my machines which are bowden setup. Around 40mm/s with the proper extruder is possible and even faster. I would say its around 95A hardness.

When I started using this product I was really impressed, seemed like a really nice TPU, so I actually ordered more in another colour! But halfway through the roll I found the filament is completely covered in some sort of oily moisture, this negatively affects print quality and is not acceptable, does not seem to be a one-off issue either as the newly ordered roll has the same issue. Shame, as everything else about the material is great.

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Jag har testat på en Anykubik Kobra 2 Max, fungerar utmärkt. Printade med 100mm/s och fick fint resultat. Testade även med 230mm/s, ganska bra resultat men inte lika fint. Rekommenderar lägre hastigheter.

Utilizzato con una Prusa compatibile DIY, ho ottenuto delle ottime stampe al primo tentativo. Per non rischiare ho impostato dei parametri molto conservativi: 210°, velocità 30mm/s, 1mm layer. Molto preciso, ho provato a stampare anche delle gomme di ricambio per le macchinine Slot: la stampa è venuta perfetta, ma non sono abbastanza "gommose", pur essendo molto morbide. Perfetto invece per stampare i piedini delle sedie e altri oggetti dove è importante l'elasticità del materiale

Ho provato a stampare un gommino antivibrazione per il serbatoio della moto con una sezione un po' particolare, primo tentativo stampato con i parametri suggerti con delle imperfezioni che si vedono nella prima foto nelle pareti "corte". Secondo tentativo venuto perfetto eliminando la retroazione e calando a 25m/s la velocità di stampa, si può vedere la differenza nella seconda foto. Letto a 70° ed estrusore a 218°.

Being my very first TPU filament this was surprisingly easy to print with on an Ender 3 S1 Pro, came out pretty well on stock cura settings but after some temp, retraction and flow tuning it became even better, can't complain. 👍