FLSUN T1 Review: High Hopes, Massive Failures!

In this video, I take a deep dive into the FLSUN T1 Delta Type 3D Printer and reveal the shocking failures I experienced. From promising specs to a disastrous performance, discover why this printer falls short. Watch as I unbox, assemble, and test the T1, encountering numerous issues along the way. Don't miss this honest and in-depth review!
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Timecodes:
00:00 - Opener
00:15 - Intro & Agenda
01:30 - Unboxing & Assembly
02:09 - Specs & Features
06:01 - First Print
06:51 - The Software
08:14 - More Test Prints
09:49 - First Problem Encountered
10:52 - More Errors
11:32 - False Build Volume
12:55 - Choosing and Tuning Filaments
14:19 - PETG Prints
15:09 - Lots of Failures!
17:35 - Complete Failure :(
18:25 - Addendum
19:15 - Just No!
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[@stevedeitry4644]

This is why you’ll never become a big viral Tuber. You were just supposed to print the speed benchy, call the printer a Bambu killer, post an affiliate link and sit back and count the cash. ;) JK of course Bro. Integrity at its finest right here.

[@Titan3DAZ]

Integrity is far more important than being "big". The big guys will definitely start losing audience when more people realize that is what is happening.

[@Expiredmayo228]

nahh this guy made like 5 $ from this video

[@SaifBinAdhed]

exactly, earned a subscription, all reviews i've seen about this printer are positive. this is the first negative review. might be a fluke, but at least it shows the bad side of the printer if it goes bad

[@deechvogt1589]

Thanks for the honest review. I hope they take everything you said about their product and fix their issues.

[@theVariedLife]

Me too. Thanks for watching

[@theVariedLife]

I was excited about FLSUN S1 and T1. The reported specs were awesome but over time multiple reviewers of the S1 showed lots of software problems, crappy profiles, false claims on flow rate, build area, speed, problems with klipper (a BudLight version of Klipper), problems with dimensional accuracy, questionable quality of prints and more. So glad I didn't buy the S1 but I hoped the T1 would have fixed those problems but apparently not. The comparison of prints with the S1 and now the T1 versus the Bambu A1, X1C and even the P series printers shows FLSUN is just pushing out an incomplete product and users are the beta testers like what Creality had done in the past. With that said the hardware is good but the software has been problematic in the past with FLSUN unless one does a lot of tweaking. Its not like FLSUN is the new kid on the block, they have been around since 2016, thats 8 years they have had to get their collective sh|t together where it comes to software but they are still missing the boat (but it can print out a 8-10 minute benchy). Nothing wrong with tweaking but today's fdm printer companies are putting out great machines where users don't need to tweak the crap out of the machine to get it to work. With that said I'm going to wait until Bambu comes out with their larger build area printer that is rumored to come out this year (Q3 or Q4?). Appreciate the honest review but I have crossed FLSUN off my list of reliable companies. Their focus seems to be pushing out incomplete products and lie about specs. Not good.

[@Richard-ql6lv]

It seems the printers are getting firmware and slicer updates. You can test these updates with your printers. These days, we are all so easily susceptible to misinformation. Don't just listen to what others say; try it for yourself

[@theVariedLife]

⁠​⁠@@Richard-ql6lvFLSUn has had various and continuous software problems and firmware didn’t fix the - for example not installing a full version of Klipper and or where certain parts of it were not able to be changed. That is not misinformation. I would expect this from a new company but FLSUN has been around since 2015. You would think after all that time they would get things fixed. Or put out a product that didn’t have so many problems - they basically have customers be beta testers. Bad form for a company that’s been around since 2015. They had more than enough time to test and polish profiles, materials, klipper settings, etc. but they continue to not do this? They rushed the S1 to market and with all the problems they co time to rush the T1 to market too. Fact is I’ve seen T1 reviews that are bad as well. Don’t postpone the product and actually make it consumer ready, just push it out the door and let users do all the work. If I got a brick I would repair it, that’s not my job. If I buy a printer. I buy it to print, not for me to be a makeshift technician. Btw strange from a guy who has no content other than replying here - bot much?

[@mitchellsmyler]

I haven't found one person who said everything works as intended

[@garryconnors8804]

Another example of a company using customers as beta testers.

[@theVariedLife]

Yep

[@wekker090]

I do have the printer now for a week or 6, raced a roll of 6 filament thru the machine, and I must say, The noise is bad when you print very fast. but when you print at decent speeds 400 to 600 the noise is doable when you set the correct fan speeds. The items printed look very good. I have amazing results with ABS. So yeah a keeper in this house.

[@renanportocarrero7816]

Thanks for this candid review! Deltas always have cone volume and they are always advertised with the tip being the max. It's shady but not a lie. For those who are new to Deltas and might have this T1 and is worried, open your moonraker (type the IP in your browser), home the printer and set Z to about 300 and play around moving X and Y and Z until you see for yourself the XY you can achieve at that Z. My tests with the T1 shows you can Max X at 125mm and Z 285 (so you could print a cylinder 250 round and 285mm high. Above that your model will need to fit inside the shrinking cone up to 330.

[@theVariedLife]

Thanks for the info. Appreciate it. :)

[@tadeasbarna]

Its ridiculous, how can manufacturers release such a garbage unfinished products on the market and actually get away with it in some extent. The mixed reviews on the S1 were something, but i hoped flsun would learn and release T1 in a bit better state. Well apparently not... ridiculous

[@Peaky-Birmingham]

Have you used any of their printer?

[@pjcanada4763]

Wow, surprised both new flagships suck at the moment, well my v400 after 1500 hours is a beast, super nice prints and zero problems,love it love it. Thanks for your video report ,appreciate.hope you get a working unit and have better succses

[@johnmurray3240]

Wondering why yours had so many problems, mine has been absolutely awesome.

[@Vaka902]

As honest as some KZbinrs are, you have to take their reviews with a grain of salt. I haven’t finished experimenting with my T1 but it’s a good printer that does quality prints and fast if you want which was its selling point. Like plenty of printers you’ll get better results if you tweak the slicer settings some instead of just running it super fast for every print. I found another KZbinrs video critical yet honest and less gimmicky than this guy. Plus idk what ppl are going so hard about, it’s a $600 printer that can compete witha Bambu X1C ($1500), like what are ppl complaining so much about.

[@johnmurray3240]

@Vaka902 idk man, it's quickly became one of my favorite printers

[@Vaka902]

@@johnmurray3240 I literally got mine this week so I still have to play around with it but initially I was impressed with the look and speeds. I see why you would enjoy yours especially if you’re not having all of these issues like the guy in the video.

[@s34nsta]

I love my T1, it's so fast .

[@YourPersonalGeek]

I have been using the T1 for a few weeks as well and while it has had a few problems, not as many failures like in this video. Love the honest review though it was fantastically thought out and presented, the one thing I do want to do is change out the fans that is my one complaint, its just so damn loud. Any ideas or recommendations on fan replacements that are quieter?

[@unitno3113]

Thank you for the honest review and the breakdowns of all the failures. I was really interested in a cheaper delta type in order to print some taller prints. This is a disappointment but thankfully it’s a disappointment after watching a concise and informative video rather than after $500 and hours of frustration.

[@juicyballerina12]

My T1 still needs a week, thank you for sharing

[@s34nsta]

I really liked my ender 3 v2, I learned a lot about 3D printing. But got tired of babysitting the whole process. One month ago found the FLSUN T1, I can only say that it is next level. It has become a tool in my creative workshop. Wondering why yours had so many problems .

[@jserr9682]

Bro am about to start doing reveiws my self thank you for your honesty. you are a great example....for reviewers ....and Great for the community Thank you Bro!

[@3dpfeeney]

slicer link with profiles available? I have one of these incoming...

[@MsMymiracle]

Thank you! I almost bought this!

[@rekle5739]

Thank you for the review, stopped me from wasting a lot of money.

[@nahuelise4055]

Thanks a lot,you saved me a ton of money and stress from this bad printer,guess i'll improve my Ender 3 S1 in the meanwhile

[@eaman11]

It's amazing that they actually believed that it was ok to ship a CPAN to hobbyists, also the amazing amount of exaggerations of the data specs.

[@TheGeordietheWitchandtheWench]

Yeah.. .it's a shame. I have the old Super Racer, with a real Klipper install. 800 mm/s is easily achievable. Once they get the SSH out this will be a beast of a printer :-)

[@AliciaDunn-v3g]

I've used a variety of printers and recently got my T1. I don't find the data specs exaggerated. My T1 typically runs at 700-800mm/s by default, with impressive quality that can be further enhanced with minor adjustments.

[@ziyuexu7668]

The print volume is an issue for almost all deltas, even prusa's ht90 does the same trhing

[@ElevatedSystems]

The problem is this one couldn’t even make even close to the build height with a model specificity designed to hit the height in just the center.

[@dacryon3755]

actually the ht90 gets its full advertised build volume, it "can" porint taller than the advertised specs, but they software limit the printer to its full conical build volume

[@johngelnaw1243]

I would guess, (and this is just a guess, since I can't examine your printer), that your system suffered heat related failure. Could be the PSU, but probably the controller board. Could be as simple as a manufacturing defect.

[@sarbaso]

The FlSUN T1 seems to be another Early Adaptor Product not thought to the End and not well testet, another China Printer that the world not need realy with such problems. Thanks for your honest review !

[@MrBaskins2010]

I knew not to trust this machine when the actual launch date and the announcement were 48hrs apart.

[@Laserwurks]

only problem others had was to calibrate after a few prints.

[@HuskyRides]

First review that actualy is informative.. Rest of reviewers just shout how great it is and there's nothing wrong with the thing. Hoped this printer would be better than the S1; but no. Just as bad. I will never get a FLsun after seeing this.

[@M3S3RIASU]

tnkx tnkx a lot

[@kazolar]

I guess you didn't get to testing ABS or any other high temp plastic. There is no hotened cooling fan on this machine, everything is supposed to run via the CPAP blower. ANYONE who has built a CPAP based machine knows that CPAP inlet must take air from the enclosure. You can't shock plastic -- especially ABS and the like with external air -- ABS needs a bit (10% with CPAP is what I run) but it has to be air from the enclosure. You also need to cool the hotend or you will get heat creep. The baffling decisions from FLsun to use closed loop steppers on the S1 -- which introduces artifacts since these are the fake closed loop steppers with a magnet adhered to the end of the stepper and a rudimentary PID loop in a esp32 driver board controlling the stepper instead of validated tried and true trinamics. FLsun wanted to get these machines out -- reviews be damned. This is what happens when marketing runs the product release, max height -- engineers know trig, marketing people don't.

[@sentranne]

Informative review!!

[@earlowens998]

Thank you! This looked like it had promise. After seeing this and other reviews I wouldn’t be buying it.

[@TheFish711]

Not to mention the bots that were appearing in support of the thing

[@3D_Printing]

Most with affiliate links will say it is good

[@raulazor]

Gracias por tu aporte, soy acreedor de una FLSun QQ, la primera de la primera pese que la empresa no la tienen en cuenta, me enamore de la delta, y hoy sigue funcionando con pico 0.6mm gane velocidad y casi no se pierde calidad, hoy después de casi 10 años veo esta maquina que me enamoro T1???? y este es el 3er video que veo y considero que esta impresora sino la mejoran, entonces va ser un fiasco con grandes perdidas para empresa... espero logren solucionar su software y ruidos, pensé invertir hoy en esta maquina pero prefiero esperar... no quiero tener esta impresora con ruidos y peor aún con fallas en lo de 3D... Abrazos desde argentina y gracias por tu ayuda!

[@mastalock]

1) Not realizing how the volume of a delta printer works is your fault, not a lie. 2) The speed claims are no different than every other printer of every other generation. The Max mm/s is about half what's actually the normal RECOMMENDED speed. My N4Max advertises 500. I print fine at 250. This is advertised at 1000, I print fine at 500. 3) T1 and every klipper machine DOES have exclude object. You just have to add the macro to the printer.cfg. "[exclude_object]" Literally that's it. Half the failures in this video are yours and your ignorance. Bad review, dud printer or not. PS: Havent had any of these problems with my T1. Was even able to throw on a PEI / PEO / PEY (whichever the one with the stars is) bed meant for an Ender 3 on here and print fine.

[@ElevatedSystems]

Let me guess, you “run Arch” too. See, I don’t make reviews for SMEs looking to get validation on their purchases. I advocate for the general consumer. The people who aren’t fully educated in, nor “just accept” the misleading marketing of a multi-billion dollar industry. The potential buyer who has no understanding of, or desire to edit code in a console. I don’t call my viewers stupid, instead I explain how the conical volume of the delta printer works and then demonstrate that the printer can’t even achieve maximum print heights within that volume. I demonstrate the simple math explaining the actual max possible flow rate of the machine. I don’t just shill the specs provided by a marketing team. I demonstrate the successes and failures of a product so customers can make an informed decision.

[@mastalock]

@@ElevatedSystems Like saying there's no exclude object? Lol. Joke

[@ElevatedSystems]

@@mastalock I said there’s no Skip Object. Which is a feature built into many printers and can be accessed right on the printers screen. No need to configure code in klipper/moonraker console.

[@curtflirt2]

DAMN, this was BAD!!! I actually had interest in this Printer too but too many reviews I've seen on it were bad.

[@X3msnake]

The shape of the volume print of these delta printers is kind of akward, but for sure they should not be advertising that small cone (as seen on the video link) as the max height kzbin.info/www/bejne/jXaYZIyNmtaSj5Ysi=6CyQpMscM3EUIbKd

[@redstormpopcorn]

dang that's a lot of burnt capellini

[@georgeyboyhowe1685]

stick with my mk 4 upgraded mk 3 prusa theses flsun are crapp

[@cybergnetwork588]

you are a beta tester

[@3DATHENS-qi1tu]

You pay you test 😂😂😂😂😂😂😂😂😂😂😂😂😂😂

[@Superdupershaun]

Yikes!!! What a peace of junk!!!

[@janelord4318]

It's not running windows is it

[@dominickbrookes5103]

Flsun should have stalled the launch. Nobody is going to buy this or the t1.

[@ralphg3315]

Who cuts a piece of aluminum and makes a u-shape in it and sticks it to hold the printer head into the unit I guess I got to start to put pictures and videos of the scrap that they put out there that I got caught with