SainSmart - 101-90-158 White Flexible TPU 3D Printing Filament, 1.75 mm, 0.8 ...

I bought this in black and yellow, waiting on the multi-color pack to get back in stock now. I spent a week in hell, as I was new to FLEX and had to learn some things the hard way. Punch line: this is AWESOME filament! The yellow looks like a glowing fiber optic when light is nearby, it is simply marvelous!! They are both extremely strong, but also soft and lustrous. Super elastic. You can take the single skirt extrusion and stretch it to perhaps 10 times it's size without breaking, but the material seems to remain slightly stretched if you do that, perhaps 30-60%, but after that it always snaps back to that size. Ordinary prints are super strong and hold their shape perfectly. Here are the bottom line lessons learned if you are new to TPU: LOOSEN THE IDLER!; start at 15-20mm/s for everything except travel; be certain your 1st layer is dialed in well for this filament; and TURN OFF RETRACTION. TPU will wrap itself around your extruder gear, or jam, and speed and retraction are the enemy here. Get it to print, enjoy how amazing it is and be happy, and optimize from there! I have a Prusa i3 MK3. My original hell began on this, and I naively tried to use the stock profile for Sainsmart TPU (I mean, it was there, right?). It seemed to work, but ended up dying mid print, almost always. Ended up wrapped around the extruder gear. Annoying to open things up and unravel it. Rinse and repeat, no joy. Played with very many settings, read very many blogs. Nothing worked. Finally blew the dust off my MK3S upgrade kit, bit the bullet, and spent a bunch of hours tearing down and rebuilding my extruder. Tried again, this time switching to the much more expensive *good filament* I bought (Ninjatek). IT JAMMED AGAIN. WORSE. OVER AND OVER. Finally, it basically tied a knot around the gear and I had to do a 50% disassembly of the extruder to get it out (luckily the MK3S upgrade anticipates this and it's easy). Ditched the Ninjatek (I really dislike that filament, it's expensive, has a dull luster, is too soft, and even harder to print, what a bunch of overhype!). Read a bunch more blogs, and finally realized the only real problem was trying to use the stock profile. The answer was go extreme at first, and optimize after you are happy and can go from there. Here are the full changes I made to the stock Sainsmart profile to start with: - Everybody says "loosen the idler"....but to what?! I had to loosen the idler almost entirely, for me almost the entire screw head was jutting out, and perhaps 1-2 turns of the screw were in the nut. This is super important, and I found you can find the sweet spot by starting loosest (screw just biting), try to load, and tighten until it loads, then stop! Experiment from there. - Bed Temp 70 deg C - Extruder Temp 235 deg C - All print speeds 15mm/s (keeping fast travel speed seemed fine, if a little stringy) - Turned off "keep fan always on" - Enabled auto cooling - Turned off retraction! (in Prusaslic3r this is in the printer settings tab under Extruder 1) I have so far turned the speed up to 35mm/s for infill and it seems to work fine, others say 40mm/s works. I love this filament. After a week of misery, once tuned in it just works every time, good luck!

Good quality filament, prints great with slight tweaking of speeds and temps. Seems like it strings less than cheaper brands. I pretty much exclusively print parts for drones, overall good buy

Picked the brand as a modeler on YouTube recommended it. Prints great on our BL P1S. My favorite filament type. Little on the hard side (15% infill), but might be something I can adjust with infill percentage. Looks amazing, shiny, and layer lines are hard to detect.

Another update: I'm back to buy another spool. It's harder than ninjaflex, 95A seems about right... i don't have a great way to measure, but prints come out about as hard as other 95A material. It prints shiny, and definitely does better with direct-feed due to the relatively kinky nature of the material. It works well for things that need to be semi-rigid. I'm using it to make stuff like mug handles (need to be compliant but stiff) and parking blocks (again, compliant but stiff). For small things like knobs and washers and plugs, I prefer 85A ninjaflex. --- Updating this review -- up from ** to ***1/2. I made a new extruder plate to try and prevent the binding issue, and I've been respooling the filament before printing. This helps a lot and I was able to successfully print about 30g for an OpenRC tire. it's still a lot more work to print, but once dialed in (which for me included printer mods and respooling filament) it does OK. It's not as stretch as ninjaflex, but for tires it'll do fine. --------- I don't care for this product. It's very inexpensive, but so far I've got one good print (my own little benchmark for tuning this filament) and two failed ones, both because this jammed in my extruder. I am using a modified Monoprice Select Mini, maybe a direct-feed extruder will be more generous. I print great with Ninjaflex, which is softer / more flexible, but I think the problem is that this filament is jumbled onto the spool and comes out kinked. The kinks seem to catch in the extruder, even when I've disabled any retraction. I've been warned against using cheap filament, and this stuff definitely counts. I was trying to print wheels for an RC car; they work well in PETG, but I was hoping this TPU would do better. So far I can't successfully print a straight meter of this without a jam. APART from the jamming issue, the stuff seems to be of reasonable quality. It's definitely harder than the 85A ninjaflex, so I can't question "95A". it seems about like a skateboard wheel. It comes off very shiny, moreso than Ninjaflex. Adhesion between layers is excellent, but I did some tuning. It prints relatively cold, around 210, and sticks well enough to a glass bed. If I could get this to print I think it'd do great in my application.

This filament prints great in both direct drive (prusamk3) and bowden (Ender3). Ive printed about 5 or 6 rolls of the black with consistent results. BUT.... make sure the filament is dry. If it's wet, it will print bumpy and look like it's bubbling out of your nozzle. Even new sealed bags can have this problem. So I generally just dry it by default and the keep in a bag with LOTS of silica gel. I use an old food dehydrator at 122F (50C) for about 5 hours or more. I use a separate temperature controller to keep it at the temperature I set. That's important because higher temperatures can cause issues. Some dehydrators get way too hot. Keep this filament dry and you will be happy! Use glue stick on PEI to prevent it sticking too well. This is NOT super soft and squishy. It is called Semiflex. So keep that in mind. I use it for parts that need to be super flexible and durable. Parts printed with this are almost indestructible. You can't tear them or crack them. This is a good choice for your first flexible filament in most printers. 230C to 240C nozzle temps work well. Start at 230C and adjust as needed for good layer adhesion.

Ho aspettato a lasciare quasta recensione per aver il tempo di testare piu bobine di colore diverso di questo filamento e devo dire che fra i vari che ho avuto modo di provare è sicuramente uno dei migliori. E' disponibile in un'ampia gamma di colori ed è molto facile da stampare, non tutte le stampanti soprattuo quelle di fascia economica escono predisposte per stampare il TPU, ma basta aggiungere un piccolo supporto all'interno dell'estrusore che impedisca al filamento di aggrovigliarsi per risolvere il problema, lo consinglio anche ai neofiti che si avvicinano per la prima volta alla stampa 3d e vogliono provare a stampare oggetti gommosi. Ho impostato la temperatura dell'estrusore a 220-230°C, anche se in genere da stampante a stampante può leggermente variare, ottendo ottimi risulati. Lo utilizzo soprattuo per stampare acessori e componenti per droni che sono soggetti a forti sollecitazioni e devo dire che la resistanza di questo materiale è sorprendente.

Great product worked well on speed 30, and temp 210, bed temp 60 perfect no stringing using cura and ender 3 V2 with a 0.6 nozzle

This is top quality product - 👌 other brands are just followers...

Great TPU material from Sainsmart. Used to order direct from China, but shipping times are a pain. Ability to get from Amazon at roughly the same price is a great result. TPU prints out at 215 deg on a 70 deg bed, no stringing and great quality prints. Highly recommend this material for home printing in flexible materials.

Als 3D-Druck-Enthusiast habe ich das SainSmart TPU Filament für eine Reihe von Projekten verwendet und bin von seiner Leistung und Qualität beeindruckt. Dieses Filament hat meine Erwartungen übertroffen und bietet eine ausgezeichnete Basis für diverse Druckvorhaben. Hohe Druckqualität: Das Filament liefert konstant hochwertige Ergebnisse. Die Drucke haben glatte Oberflächen und präzise Details, was für meine anspruchsvollen Projekte entscheidend ist. Hervorragende Flexibilität: Die Flexibilität des TPU-Materials ist beeindruckend. Es ermöglicht mir, Objekte mit variablen Härtegraden und flexiblen Eigenschaften zu drucken, die mit herkömmlichen Materialien nicht möglich wären. Einfache Handhabung und Kompatibilität: Das Filament hat sich als kompatibel mit verschiedenen 3D-Druckern erwiesen und ließ sich problemlos laden und verarbeiten. Die konstante Filamentstärke von 1,75 mm sorgt für ein verstopfungsfreies und gleichmäßiges Druckerlebnis. Starke Haftung und minimales Warping: Das Filament haftet gut auf der Druckplatte, was Warping reduziert und zu einer höheren Erfolgsrate bei den Drucken führt. Langlebigkeit: Die Drucke sind robust und langlebig, was das Filament ideal für praktische Anwendungen macht, wie z.B. Schutzhüllen, Verschleißteile oder flexible Verbindungen. Umweltfreundliche Verpackung: Das Filament kam in einer umweltfreundlichen und wiederverschließbaren Verpackung, was ich sehr schätze. Gutes Preis-Leistungs-Verhältnis: Angesichts der Qualität und Vielseitigkeit des Filaments finde ich den Preis angemessen. Die 0,8 kg Rolle bietet genug Material für zahlreiche Projekte. Fazit: Das SainSmart TPU 3D-Drucker Filament ist eine ausgezeichnete Wahl für alle, die nach einem hochwertigen, flexiblen und benutzerfreundlichen Filament suchen. Es erweitert die kreativen Möglichkeiten im 3D-Druck und liefert zuverlässige und dauerhafte Ergebnisse. Eine klare Empfehlung für Hobbyisten und Profis gleichermaßen!