FLSUN S1: What You Need to Know, an In-Depth Review

[@Airtight215]

You and Angus are the only guys I trust for reviews. Another banger, as the kids like to say.

[@Florens1989]

I like to add stephan from cnc kitchen.

[@ElectraFlarefire]

And Thomas Sanladerer, but he doesn't do as many reviews these days.

[@Clough42]

I think lots of creators have gotten burned out on reviewing the Ender clone of the week. Doing it well takes a huge investment.

[@Florens1989]

@Clough42 I can imagine. But your video proves it's possible to do a really good review. Quality over quantity

[@802Garage]

YGK3D also released an excellent review on this printer which drew many of the same conclusions. He was also very thorough and fair. Still waiting for his bot raid. 😂

[@matthewlee8917]

You are the gold standard for 3D printer reviews.

[@MrDonXX]

Yes but I also like reviews from AuroraTech

[@rogertrett406]

Brutally honest! I bought a Bambu X1C based on your review and have been really happy with it. My printer is a tool. I don’t want to have to mess with it to get good results. The X1C does that out of the box.

[@TorianTammas]

Totally agree, I use my printer, my bike and my car. Same for 3d printer. It has to deliver.

[@williamstock3007]

Seems like a cool printer, I really hope they watch your video and make modifications to improve their product. You'll find out if they're a good company or not based on how they respond to criticism. If they can't take criticism they'll never improve

[@mattylarkspur9858]

maybe hopefully a qidi situation where in 3-6 months and 2-3 firmware updates they'll be shipping a nice tight product?

[@Krendro]

@@mattylarkspur9858I actually bought a Qidi after they did a re release with updates they got here and the rest of the community. To me that showed they care about the product and the input from users and it’s been a phenomenal printer for me

[@rwizard]

Don't hold your breath on this one. In any case, while Deltas have a certain "lava lamp" entertainment factor, I don't see them as the way to go for most users. They are Betamax without the higher quality video.

[@mr.b2232]

The quality and depth of your testing and analysis is outstanding. FLSun should be paying you for that! 👍😎

[@c0mputer]

For me the biggest red flag is the deception of flow rate. A company has to respect its customers.

[@mapgeek6]

I agree. I intensely dislike it when companies are deceptive in their specs.

[@eaman11]

Problem is that it looks like they don't understand how printers work, not acceptable for someone who designs printers. Dunno maybe with a 1.0mm nozzle that does get more flow?

[@Repairman87]

Appreciate the honest review. Refreshing to be honest.

[@redwhiteandbluebonnets8180]

11:23 That test file makes me think of the Volkswagon diesel engine EPA debacle.

[@brianemunroe]

Haha, that's probably the funniest thing I read all day 🙂

[@MrSneakyGunz]

My TDI resents this comment. 😜

[@redwhiteandbluebonnets8180]

@@MrSneakyGunz I miss mine. Had it 3 years, then sold it back to them after the debacle; ended up being like a $300 lease for 3 years, but I still wish I'd just kept it. Cest la vis.

[@MrSneakyGunz]

@@redwhiteandbluebonnets8180 For sure. Mine is very nice (mint condition). 2015 Golf.

[@802Garage]

Hahaha classic.

[@brachels]

What an excellent product review video you have created here. I enjoyed watching this video from the beginning to the very end. You gave clear and coherent information which was easy to follow and comprehend. You didn’t do what almost everyone does when creating a video…..you didn’t keep saying the same info multiple times. I hate when the person talking in the video repeats the same sentence or says the thing multiple times like you would in a conversation. So many presenters talk in these videos like you do when your face to face with someone. You only need to say it one time if we didn’t catch it we can rewind the video. You sir where a pro and did an amazing job and I wanted to let you know that all the effort you are putting into these videos is not going unnoticed. This is how a review should be done take notes this man has the formula. You have me as a subscriber obviously. Looking forward to watching more content from you.

[@PetrSedlacek]

Great review! Felt very balanced and fair, while still being tough. Clear and concise delivery with no fluff. I'm impressed! Not sure how I managed to miss your channel until today, it was an instant subscribe. Looking forward to going through your videos!

[@MitchM240]

This is my first video I have seen of yours. I was directed here as I started watching your video about FLSun using bots on this video so I wanted to watch your review first. I appreciate your honesty. It is hard to believe just about anything printer companies are saying now. It’s almost as if their marketing teams don’t speak to the engineering teams. Either that or they are just deliberately lying. All these companies trying to beat Bambu completely miss the main point. All the features i the world don’t matter if the printer doesn’t do what it says. People love Bambu because they just work. Someone like me that just got my first printer a year ago ( P1S) I took it out of the box and was printing immediately. Fast forward a year and I have never had any issues! That is what we want.

[@UncleJessy]

Fantastic deep dive review! Nice to see someone digging in on accuracy of parts off this machine

[@mittron2556]

Unlike your shitty reviews.

[@Mkz0r]

Pff another large language model bot replying to videos /s

[@WilliamLeue]

Great review! I like how thoroughly you test, how honest you are with full disclosure, and how you tell the facts as you discovered them. You are very fair to the manufacturer, listing the deficiencies you found, but with helpful suggestions about how they could be remedidated.

[@smellslikeupdog80]

Every reviewer was dissapointed with that machine. Yours was the most gently worded out of the bunch. Botfarm comments show that they're really trying to capitalize on their investment, not really by improving their hardware/software. Classic corporate move.

[@zakariakhamees]

Now that's what I call a full honest review!

[@TheLouisianaHobbyGuy]

Great review, thanks! I have to mention, I think they may have taken your advice. I got one a few weeks ago and haven't had a single issue with it other than the expected noise. I also noticed they've updated the software twice since I've had it. I got it with 2.0, then 2.01, and now 2.02, though it still reads 2.0 in the software. I'm glad expert users like you get into great detail, since it appears FLSUN may in fact be listening.

[@kraigw2496]

I watched your other video before this and I was intrigued, I love that you have been honest and true, don’t stop being you! It’s your review and your opinion they cannot say anything! Also a huge amount of respect to do this!

[@ashers_workshop]

I just finished watching some "loyal" moses videos and man do i appreciate your honesty. This is the real experience and you know what your talking about. I use klipper and built a voron and was considering deltas. Thanks so much for giving insight on this machine

[@5jvm0u4]

in this era of stimulating short videos, I find your video/voice soothing and make me slow down a bit to re-enjoy a real, in-depth review, it almost remind me of the vibe of the good old days when MK3 just came out and the community is full of helpful people and everyone is trying their best to make this technology better

[@larrycleeton]

I got a FLSUN SR for a song. Thankfully because I've done nothing but have to tinker with it. They haven't released their customized Marlin software going against the GPL license. Since they have released new model printers it seems they've abandoned it. Vendors like this are sure to fail.

[@csours]

I wonder if the engineers need external feedback to make the bosses listen.

[@jamiemacdonald436]

Great review. I would not be happy at all if I dropped $1500 and wound up with all of these shortcomings.

[@Argosh]

Considering that price it's simply unacceptable.

[@VacFink]

Excellent Review. I can only hope that the the manufacturer uses the review process to improve vs market. Other's, like Qidi, did just that and earned considerable respect with a follow-up review that provided evidence of solutions to the identified problems.

[@GeoffHome-u6r]

What an excellent independent review. Saves everyone time and money and enjoyable to watch.

[@afo5924]

The best review I've seen about this printer, reviewers should learn from you.

[@RobytheFlorentine]

Hi, u became my preferred youtuber even if I spend a lot of money buying tools being influenced by your videos😅. I think u r one of the few that give a honest review and that is brave. Bravo. Best regards from Florence Italia 😊

[@Clough42]

Thanks! I hate doing negative reviews because it takes a lot more work, and often generates a lot of conflict. I know many reviewers just respond to the manufacturer saying they can't show the product, but I feel weird about doing that, so here we are.

[@MattysWorkshop]

Gday James, I throughly enjoy watching good fair honest reviews that say it how it is, many thanks mate

[@MirageDU]

Finaly a propper review and not just a "Hey I unboxed this and printed the 8m benchy that is not comparable because it doesn't meet the speedboatrace rules but looks okish for the speed." A big thank you for that and especialy for your honest words. Sadly I'm not surprised they tried to change your script. Because ever since, their machines are great (hardware wise, not the software!), but the company itself is kinda dodgy. They don't just exaggerate their specs, they straigt up lie to the customer. When I saw that internal structure of the melt zone I immediately throw away my hopes of prrinting carbon filled material with the T1 I ordered. I assume it has the same structure. Maybe we will see an aftermarket upgrade for that. We'll see. Luckily I have a big Core-XY that can print carbon fiber without any problems. But the craziest thing I saw from them so far was the lottery they did via a facebook livestream. The smaler prices were drawed via a wheel of fortune, wich was kinda ok but prone to error, because they didn't use a service for that, but everyone hat to comment in the stream a special phrase and they handpicked them out which opens the possibility to overlook some. Afterwards the winner hat to send them an e-mail. So in theory others could have send e-mails as well to claim a prize. But the last and biggest price was the S1. And this drawing was totaly rigged and they didn't even try to hide it. Spontaniously they changed from the wheel of fortune to method I never saw anywhere before. Everyone had to post a special phrase again in the chat of the stream again. But you didn't get into a pool by doing that. They let everyone do it over a few minutes repeatedly because they would stop at an unknown time. They showed a mobile phone into the camera with the stream chat. And when they chose to stop the one at the top with the correct phrase would win the printer. But here it comes. There were.. I think it were around 1600 people, watching the stream. So the chat was flooded with posts. But on the phone where only shown posts of the same 3 (if I recall correctly) people. And everyone was complaining about that in the chat. Obviously they ignored it and the ones that were shown in the chat didn't say anything to that as well. A minute later the stream ended in a hurry. That being said, the T1 will be my third FLSUN printer, replacing my SR and I hope it will be just as great, because I realy loved the SR and it already has a new loving home. But the people behind FLSUN are the worst.

[@ClintonCaraway-CNC]

I'm so glad I found your video. I was seriously thinking about buying one of these based on the claims. You saved me from a lot of frustration and disappointment.

[@earlowens998]

Thank you for a very good analysis. I decided to wait and hope improvements will be made on what looks like a promising printer.

[@624Dudley]

As usual I’m impressed by the depth of comprehension you bring to the project. 👍

[@802Garage]

Wow! Really thorough and honest review. Functional prints are really important to me. I enjoy tuning, but at this price level, they should really have more ready to go for the user as a baseline. It's a super impressive machine overall, but needs some work on the software side at least. I'm excited for the T1 though, which I think is a more reasonable option for most people. For now, I still have my sights set on a Qidi.

[@kazolar]

I love delta printers, I made my own large format delta. 500mm bed, 1.5m tall. You think this thing is big, mine looks like a phone booth (I built an enclosure for it). Deltas can have a something that looks like VFAs, but they're not, they're delta artifacting, which is why those who know what they're doing, use 400 step motors and small pulleys. My delta uses awd (6 motors -- top and bottom) nema 17 400 step motors and 16t pulleys. The high step count eliminates the artificating, and you get parts that are actually as designed, however you can't get the 1m per sec moves to put on the box if you do that, I can push 600-800, because I use a 40v PSU (did the math -- and that is recommended max for my stepper combo). I can push accelerations, but to some degree it's a parlor trick. FL sun reps saw my delta on 3d printer builder groups and tried to get me to try theirs and make a video about it, why? Looks like they're after the specs not quality. Also knowing the math behind deltas, the delta print volume is a cylinder with a cone on top, to advertise max height as the tip top of the cone is SUPER deceptive, true build volume of a delta is the cylinder, you never factor that cone into it because trig computation there gets super sketchy. FL sun DO BETTER. I have the CPAP blower on my delta too, but mine is actually implemented with a true analog converter board, so you can dial in the amount of cooling you need and it actually isn't super loud when you do it right.

[@SevroAuBarca04]

Any chance you could give an overview vid of your printer build? You have some other vids on your channel that are a couple years old, sounds like you have an amazing build! Would love to see it

[@Castdeath]

Second the comment above, would love to see this delta printer

[@davidwilson4190]

I'd love to see it as well, maybe a collaboration vid

[@Jeeplife2011]

Thank you for your honest review!! It’s nice to see someone who is honest and not giving fake hype like other KZbinrs. I pre ordered printers before and I can tell you they shouldn’t be major issues like this in 2024 anymore. Yes it is nice to see company’s pushing the limits of printers but not at the cost of people’s hard earned money as guinea pigs. This is what beta testers are for. Thank you again for the review!!

[@MrDonXX]

When reviewers say the company sent me this printer to review and I was not paid one can conclude that the payment is the printer. With that said most reviewers do a good job with the reviews they do the Pros and Cons but when a company outright lies about its product that is unacceptable thanks for pointing them out and standing by your word for doing an honest review. Wonderful Video I am Subscribing.

[@Ewan_Thorpe]

I bought my first 3D printer, an Ender many years ago . I recently upgraded to FLSun T1. I have been using it for almost 1 month and in my case it is great and I really like it .

[@jhawker2895]

Amazing review... Thanks for your excellent review... Please stay safe and well ...

[@jwbgreen]

Thank you! I have been very hyped for this printer, it looks amazing and it has the print volume i miss. I have seen a lot of videos of this printer, but sceptical as I am for very hyped products I waited for a review that is honest and from some one that has used the printer for a longer time than 1 hour. I got to say that I still want this printer, but I will wait to see if they fix all the issues, I hate tinkering. I want to print quality parts fast and easy. I use Bambu lab today, and for now I will continue with them. But man.. the S1 is sexy :D

[@NewZonaRides]

Great review. I had no unanswered questions at the end.

[@techshedlington3106]

I LOVE honest evaluation of products - Good & Bad... It allows the prospective buyer to make a calculated purchase - THANKS

[@jeanbarbier9448]

Thanks again James for that test... I never understood the use of delta kinematics for anything precise, there is too much that can fail. Personally I was fed up with constant tinkering on early printers so I went to a Bambu P1P. And I received yesterday my new P1S+AMS, the previous one will be dedicated to PET-CF with a 0.6 nozzle. Cheers, Jean

[@Clough42]

You are not alone. Bambu Lab redefined what the user experience for a 3D printer can and should be, and companies that aren't adapting are going to have a hard time.

[@802Garage]

Nothing wrong with Delta for precision, especially with the closer loop stepper motors. This printer simply needs a lot of polish and fewer overstated claims. Some basic slicer tuning along with reasonable speeds and I'm sure it can produce excellent parts. Problem is that people shouldn't have to do all the work to figure out the actual limits of the printer and settings to use when they are paying this kind of money.

[@Bob_Adkins]

Great review James. I was hoping this big boy would perform very well. Maybe this review will help make it a better machine. Having worked in manufacturing (Quality Assurance), I have seen deadlines, money woes, and the echo chamber effect cause teething problems in good basic designs.

[@Clough42]

I think that's exactly what's happened here. I think this machine has been almost ready to release for several months, which probably means they were scrambling to get it out, and they'll continue to scramble to get it right.

[@MrSneakyGunz]

As always, love your content and your upfront honesty.

[@ygk3d]

Great analysis James. Thanks for the shoutout!

[@ygk3d]

@@ccmmrrnn Come back with a more meaningful opinion once you've watched a few of my videos. I'll be dropping my S1 review this week which is equally as thorough as James'.

[@ygk3d]

@@ccmmrrnn I hadn’t tested it at that point, as I said in my reply to your other comment. That is an old video that was filmed right after the printer came out of the box. The numbers I quoted for Bambu are also just read off the spec sheet, not actual numbers. Bambu claims 30 but in reality the max flow rate is about half that.

[@ygk3d]

@@ccmmrrnn you missed the point of that video. Comparing spec sheets. Testing results come in dedicated reviews like the one I’ll be posting here in a few days. Watch it or don’t, sound like you’ve already formulated your entire opinion on one 30 second video. I’ll leave it at that. Have a nice day ✌️

[@ccmmrrnn]

​@@ygk3d The point of "that video" was to get views for your channel. Don't pretend you don't want views. This is not an altruistic endeavour for you. Do you do the soyjack face because you think it's informative? Look, I've already told you it's okay. We know what you're doing, it's in all of the videos of yours I tried to watch. You could have just owned it, instead of lying like a toddler in the comments of someone who was kind enough to boost your viewership. Next time just don't reply, it's embarrassing.

[@ccmmrrnn]

@@ygk3d The point of "that video" was to get views for your channel. Don't pretend it's a public service. This is not an altruistic endeavour for you. Do you do the soyjack face because you think it's informative? Look, I've already told you it's okay. We know what you're doing, it's in all of the videos of yours I tried to watch. You could have just owned it, instead of lying like a toddler in the comments of someone who was kind enough to boost your viewership. Next time just don't reply, it's embarrassing.

[@Vlican]

my god this is a detailed review! thanks for spending the exorbitant amount of time on this video and tests

[@BallBallBallie]

I hope FL give him the s1 pro. Love an honest reviewer

[@OnePotMeals]

Excellent review and insights! I watched this as soon as it popped up in my feed because I was curious about this printer and considered buying one. I’ll wait and keep using my X1 Carbon.

[@frankie352]

better off buying more P1S's or X1C's than getting this. Glad I watched this.

[@dwightcarlson7136]

Wow. Haven’t watched your channel in awhile and am not familiar with 3D printing but your review was excellent as usual. A lot of what you said went way over my head but I still picked up on some of it. Excellent presentation.

[@JumbleLane]

I have just started to watch this review but the first thing that sprung to mind when you spoke about the first layer crashing into the bed and not being able to alter the z offset enough is, why can’t you pre heat the nozzle do it expands before mesh levelling? Will this allow the hot end to expand before it measures. I thought that with any printer I have used it always heated both the nozzle and the bed before it went through any levelling process, auto or manual. Or am I missing something?

[@SNIPER-zc8mz]

Thanks for the review , I trust your opinion %100

[@GrimmChristopher]

Awesome review. Would love to see a followup and check what flsun improved over time. Regarding the print issues, perhaps the closed-loop steppers contribute to some of them.

[@nicholassandor2482]

Great review! Just wanted to add that 30-40 mm^3/s flow rates can definitely be achieved on bambulab machines using an aftermarket hotend. I use the often recommended aliexpress hotend for my P1S with a CHT style 0.4 and am able to push PLA at 34 mm^3/s.

[@802Garage]

Not hard to achieve on most printers if you spend a few $ on the hotend. That's part of the problem really.

[@Clough42]

E3D has a high-flow hotend for the machine, too. I'm looking into getting some to try.

[@RizwanSarwar]

Kudos to you do this in single shot and standing there for over an hour.

[@Oorail]

How is the quality of the wiring between the effector and the board? The effector wiring harness on the V400 is problematic. The wiring harness connects directly to the board using JST connectors, but after a few months of use, those connectors get pulled / stressed by the movement of the effector. This can lead to incorrect temperature readings, which can either throw an error or cause the hotend to heat up an extra 30-40 C. The FLsun Super Racer has a better design with less stress on the wiring harness but it has issues with its extruder. So I was curious if they've improved the wiring harness with the S1?

[@julieta203]

That is one damn HUGE printer! Lots of attention given to this printer and understandable so but I think the better option for most people is the small T1. Hope to see a review on that T1 soon

[@theVariedLife]

Thanks for a real look at the S1. Seems like FLSUN has the hardware part down pat however they seem to be lacking when it comes to the software side. Good factual video.

[@kyzenlanx]

8:00 Hot tip, I love ASA as much as the next guy, and have found that putting a layer of PETG down first saves the bed. Sticks amazingly well while printing, then separates from the PEI and ASA amazingly well. Can also do multiple layers, then iron them to remove bed imperfections and get a pretty good smooth first layer of ASA. Give it a crack ;)

[@theglowcloud2215]

And if you're using a multimaterial system (AMS, MMU3), you don't have to dick about with manually switching filaments. PLA supports for PETG parts are also awesome.

[@kyzenlanx]

@@theglowcloud2215 yep, what a work we live in 😍

[@Clough42]

That's a cool idea. I've played with stuff like this a little, but hadn't thought of that combo.

[@802Garage]

That's pretty cool!

[@nicoleibundgut534]

Thank god. I orderd an x1c last Friday and i really thought i made a wrong decision.

Thank you for your work on reviewing this machine for us. Good job!

[@floodo1]

Great review, pretty much covered all my questions

[@billdoodson4232]

I love your reviews on various products. So much so, that, as soon as I could, I ordered the Qidi Q1 Pro, which arrived a couple of weeks ago. I'm still learning Fusion, I was pretty proficient with AutoCad LT, but Fusion is a mare. If ever you want to do some Fusion tutorials I'll be first in the queue. Thanks for the work you do putting the content out. 🏴󠁧󠁢󠁥󠁮󠁧󠁿🇬🇧🏴󠁧󠁢󠁥󠁮󠁧󠁿

[@nrayanerhg53h]

Excellent review. Thank you very much.

[@NoktiousGames]

Thank you for being so thorough with your review.

[@shlubbert3355]

Wow, this looks like a total disaster... everything from the software side, misleading marketing, to the print quality. Kinda shocked they released the machine in this state.

[@kentswan3230]

Thanks. I feel your pain as teaching three-legged elephants to dance is not my cup of tea either. I'm looking for strength, accuracy, and functional parts printed with adequate speed. This is because my cad assemblies are typically prototypes of multi-element fitted parts which (in some cases) will be produced with hard tooling or cnc. I was impressed by your recent video on that subject.

[@teo8028]

Absolute fascinating presentation. I'm dazzled.

[@frjavi73]

@Clough42 Do you know if the extruder feeding wheel is reinforced steel? or normal? These make a difference too for support abrassive filament. I think I do not saw any mention about these in FLSun S1 specs.

[@JFirn86Q]

STOP making copies of a slicer that you just make worse compared to the open source, all for the sake of making it closed source. Especially if your version is buggy or not polished. Cmon now, no one like scuzzlords. Thanks for the review and all the effort of testing, was interesting to see.

[@802Garage]

A lot of issues with this printer could be solved near instantly if it was more open source.

[@Mr.X3D]

Thank you for a great review! I got the v400 on release and had mostly the same issues. Still I loved it (briefly). Just looking at the motion system running is hypnotic. Then I of course got the X1c and my deep feelings for the V400 just faded. It became an other dust collector that I finally some months ago convinced a friend to adopt…

[@B777300]

Dear James, try todo the delta calibration from klipper may be you can solve part of dimensional issue.

[@polarys425]

My only attempt at a delta was an Anycubic Predator. It was huge, but I never was able to dial in acceptable prints.

[@conorstewart2214]

It seems if you need higher flow rates and/or with fibre filled filaments then go for an X1C with the E3D nozzle which apparently increases flow rate by 60% and is harder than hardened steel nozzles. The E3D nozzle is basically like a CHT nozzle.

[@BeefIngot]

Bought one and for some reason prints are less reliable so I have to figure out what the problem is.

[@iakovosmobile]

I have the E3D Obxidian High Flow hotends, both the 0.4 and the 0.6. They both worked flawlessly for me and are straight swaps for the OEM. I have tested the 0.4 flowrate in more depth as it is the one I use the most and successfully completed a flowrate test print that went up to 42mm^3/s @ 225C using PLA with no issues manifesting which I did not expect. Started seeing issues with the heater reaching capacity and being unable to keep up with the flow at that point. In my case I chose not to alter the default filament profiles but I am benefitting from the additional consistency in extrusion and higher layer adhesion. You can easily increase volumetric rates and reduce print times as well if that is preferred however. I would highly recommend testing these. There have been some further developments with slice3D advertising a new hotend for which several manufacturers will be making nozzles for, including diamondback. Some interesting developments ahead.

[@BeefIngot]

@iakovosmobile I have less than 0 interest in ever giving slice engineering a penny. Patent trolls, which is what they are, are no good for anyone or innovation. After they've tried to bully people for a patent they have where there has existed prior art for over a decade and the political rambling of their owner trying to defend it, they are a tainted company to me.

[@iakovosmobile]

@@BeefIngot That's fair enough. I am merely saying that there are options additional to the OEM ones that offer significant improvements to the achievable flowrates, with more options seemingly coming through. For that matter if you need any kind of help in testing anything to help identify where the issue may be on your side with the E3D hotend, let me know

[@enosunim]

This is a really cool review! I saw a couple of videos about this printer, but your video is so detailed! I miss the times of Ender 3 printer. When printer were about what they are advertised... But now, you have to divide everything by 10 = ) Even Bambu printers suffer from marketing. What to say about others? I personally do not like that speed hype. So I now I am going to your X1 review = ) They talk about those Bambu's so much and all talks about 'look at how my table is thaking'! And only 15mm3/s? I installed BeMeGe printable BMG clone and copper heatblock, and I have got 18mm3/s on PETG. On stock Ender 3. I did not install any high voltage motors like those benchy shaped speed community users. Just some direct mod and upgraded firmware, set accelerations to 3000mm/s2 and it prints less then 2 times slower then Bambu. So what you wanted from FLSUN? If Bambu is markting shaking head thingy? The whole insanity shaking idea is about 'shaking' the community and users. Before that most manufacturers just written large numbers, like 300 or 500 mm/s. But actual accelerations was not so high. But people believed those numbers. And even today they may look at numbers at this FLSUN printer display and believe, that it prints 1000mm/s. Bambu makes it too look fast. But I look at their PETG profiles. (the generic ones) and it's 150mm/s maximum. Only travel speed is 500 actually. And now they create printers with custom frames. I love Ender 3 design as you can fix tools and upgrades anywhere you want on the frame. And even replace parts, or repurpose them. There is a PET extruder model which made from old Ender 3. What will they do from modern Ender 3 V3 frame? Nothing I guess. But it's all an old mans mumbling. Nevermind = ) Anyway, good video! Thanks again. I am transitioning to X1 review. Hope it will be as detailed as this video.

[@quinmcdonald8039]

If you get the chance, id love to see you review the neckog injection molding machine.

[@eaman11]

About max flow: what about testing with 0.6 or even 1.0mm nozzle?

[@meadmaker4525]

Speed seems to be all the rage in the 3D printing sphere, but if it comes at the expense of quality, I'm not interested. Perhaps I missed it, but when you were printing those parts and had all of those artifacts and poor definition, was that while trying to print at max speed? I'm curious if a slower, more normal print speed would have resulted in cleaner results. I'm guessing this printer may also have a filament sweet spot, but I can't believe they fitted the tool head with a brass hot end. Doesn't the X1C come with a hardened steel hot end to allow for printing of any filament type? Can't understand why FLSUN didn't just do that and save everyone the headache. If the S1 had the kind of Apple-esque user experience of the X1C and at least that quality, buying one would be a no-brainer. I'd LOVE to own a delta like this. It's magnificent! But there seemed to be a LOT of issues with this thing in your review. I understand they've just released a fairly large software update that's supposedly going to fix a lot of those issues, so it would be interesting to see a follow-up from you on that, to see if it made any difference.

[@Clough42]

I have tried the new firmware. The first layer height is better and the slicer installer is now signed. The print quality and size calibration problems remain.

[@meadmaker4525]

@@Clough42 - Well, the first part was a bit of good news, but it sounds like they've still got work to do. Thanks for the reply!

[@nigel5823]

orca slicer is now for all filaments i have the flsun T1 that has some issues wrong screws came with the printer the fliament get tangled up around tthe spool rod thats a bad disign

[@davidolsson]

Should be perfect to put in a corner with that design?

[@MalachiTheBowlingGod]

7:25 Did the thermal expansion match the manual Z-offset needed?

[@Mike.Lehmann]

Good honest review James. Thanks

[@fpbibi]

I own a Bambulab (P1P to P1S to X1 (Should have bought the X1 the first time)) because I trusted your review of it (gotta thrust my fellow software engineers) and boy is it a game changer. I used to hate FDM printing so much that I switched to resin printing (after 10 years). I never thought I would go back, but when I saw the print quality of your parts with the Bambulab I was blown away. Seeing the quality of what you got with the FLSUN I would never buy it. It's like coming back to the old FDM days. Yeah ok, fail, but fail fast, but ideally it would not fail and got it right the first time. I had maybe 4-5 failures on the Bambulab but it was mostly my fault.

[@AfraDuvall]

I've been using the S1 for a number of days now after updating the firmware and everything looks fine. The reason I chose FLSun is that I don't like those copy-paste bambu products. I already have a P1s and I'm just looking forward to and trying out some innovations.

[@FullEarthWorkshop]

This is an excellent review…just what I wanted to know!

[@johan23501]

Awesome and interesting review of the S1! 😊🤘

[@Uncle-Duncan-Shack]

I will stay with my Flashforge thanks, 1/3rd of the price and it is point and print. I have 1300 hours on mine. The build plate got replaced at 1250 hours and I put a 265 degrees C hot-end in it at that stage. For the rest I wipe the screws and rods down now and again, re-grease the with a Q tip dipped in light grease. Both the slicer and machine auto update. The default settings in the slicer work. The filament can be from anyone, no RFID tags. This is how printers should work in this day and age. Thanks for your review, it certainly assists with purchasing considerations.

[@crashkg]

It would be great if you could compare Prusa HT 90

[@Clough42]

If they want to send me one, I'm happy to test it. I'm curious, but not $10K curious.

[@crashkg]

@@Clough42 how about it @prusa3d @josefprusa ? James is one of the most trusted voices on KZbin.

[@Christine-ut4dv]

Im 10k curious so you must buy one now haha

[@xgen8k]

fantastic review, thanks

[@peterkallend5012]

Flsun is good at making filament dryers, I'm not surprised they integrated one into this printer.

[@airgunaccuracytests7.5joul70]

You should use the CNC kitchen flow test. It is much more accurate and independent from the acceleration.

[@lowelljeff]

Excellent review!!

[@motopimp2006]

Man I was hyped to get one of these. I have a v400 and print exclusively in CF Nylon. It works well and is very fast. I did experience a lot of tuning. Every filament requires tweaking. Once complete it prints nice dimensionally accurate parts

[@toddlawrimore3577]

Thank you. Love your content

[@hayden9944]

Thank you for a proper review on this printer! The other reviews I have seen are too kind. Especially with the marketing nonsense and poor print quality. I am surprised with the salmon skinning. Properly dialled in deltas can have unmatched print quality because it doesn’t have the same z-wobble to deal with. Perhaps they need to increase micro-stepping and slow it down a touch.

[@23Kolobok]

did you made an "enhanced delta calibration" in klipper? it is a bit different way to calibrate delta printers.

[@EngineerJerry]

Did you ever run a delta calibration? I found this really helped the dimensional accuracy of my FLSUN V400. EDIT: The delta calibration compensates for the actual difference in length of each of arms.

[@ul5255]

not in my experience: muliple delta calibrations never fixed the dimensional inaccuracies of my v400. He even ran CaliFlowers on this monster, which I also considered to improve my v400. At this point FLsun better demonstrates how to improve all that but I doubt …

[@EngineerJerry]

@@ul5255 That is odd, I have done the delta calibration for Klipper twice on my machine and the dimensionality is spot on. I did scale up the print to 1.75 times and used the delta calibration now my prints are dimensionally accurate in any orientation.

[@wibbledee]

It's nice to see a few reviews of the S1 out now, but I can't justify the money or space. I'm hoping it bodes well for the T1 though. Hers's hoping for some reviews soon!

[@WaffleStaffel]

FYI, acetone is safe to use on PEI beds. Use it with confidence. Polyetherimide is a type of Polyimide like Kapton tape, and is impervious to just about anything beside chlorinated solvents (and strong acids and DMSO), which means only a chemist is likely to have a solvent capable of damaging a PEI bed. I say this with firsthand experience. I've used acetone and ethyl acetate, absolutely no damage. I accidentally got a drop of DCM on my bed and the PEI softened and swelled up.

[@mariusj8542]

110 in flowrate with a 0.4 nozzle is difficult, i have just seen such numbers (70-80) with Phaetus UHF and my very finetuned corexy. Over 100, then in my eyes you are in vzbot land with their nozzle and Goliath hotend. Then you need motors,drivers and fans to match.

[@802Garage]

Exactly. Anyone familiar with high speed printing knew those numbers were bogus.

[@weekendwireless]

I’ve never seen a review come out better than a bamboo lab Printer