The FLSUN V400 is a direct drive delta 3d printer that runs KLIPPER out of the box! Review.

[@ligu0rien]

Absolutely love my V400. It's my first printer and thanks to vids like yours, I can make it work ;) Keep it up. After about 200Hr of PLA prints, I'm now trying to dial in HIPS filament. Slowly getting there one parameter at a time.. Thanks.

[@martinbernath]

This looks really promising. I will probably never spend this much on a printer but if i were to im pretty sure this one would be somewhere near top of my list. I was impressed by the SR when i saw the reviews and the more i see of these printers the more i like deltas.

[@jimcsnr]

I recently purchased a Flsun Q5 from eBay for sub £140, it was a return, but when I received it the printer looked like it had never been out of the box, all the tools where still in the bag and the filament was still in place unopened. I own 2 Creality CR6 printers and 2 Fokoos Odin printers, an Anycubic kobra neo a Sovol SV4 idex and a Geetech A20M which I never use. But for most things I print now I use the Delta printer, it very rarely lets me down and the quality is very good. Going forward I'm putting some of my printers on Gumtree and putting the cash towards another Delta printer probably the V400 when the cash pot allows and the Mrs doesn't find out until it's too late. Really enjoyed your videos on both this and the racer. I also watched a lot of your other stuff. Keep up the excellent work.

[@Dystrackshun]

Square corner velocity sets the minimum speed the printer will maintain during a 90degree turn. Not sure how effective it is on a bed slinger, but for corexy and Delta, it reduces the total deccel and accel needed.

[@LostInTech3D]

So 5 means it reduces down to 5mm/s before executing a change in vector? Cool

[@Dystrackshun]

@@LostInTech3D for 90 degrees, it will maintain higher speed at shallower angles and lower speeds at sharper ones

[@Dystrackshun]

@@LostInTech3D yes instead of coming to a complete stop

[@kazolar]

It’s equal to jerk/√2. Which is supposed to be 3rd derivative of speed / √2. It’s very close to jerk, I guess 1.41 * jerk. 5 isn’t terribly high, it’s default for kipper, a conservative number that shouldn’t break anything. Acceleration is tuned by input shaping, jerk or square corner requires manual tuning. If you want a sub 10 min benchy, that’s the number to mess with, if you wanna see some crazy speeds

[@Penofhell]

To be noted that when using input shaper (which this printer is probably using to get good quality at these speeds), it is not recommended to use a corner velocity value higher than 5 especially when trying to tune for maximum accelerations.

[@GamerLikeDad]

Thanks so much for this review! Fantastic video! I have been looking at printers for years and just haven't pulled the trigger. I'm really leaning on this one, especially for building larger builds.

[@hermste]

Thanks for the insights! I got a heavily modded QQ-S Pro. I also love to watch the Delta working. There's one thing that is missing for me to purchase a V400: An integrated enclosure of the heat chamber. I bought a "warm box" for my QQ-S and it helped so much with sensitive materials/prints. Not ideal because also the electronics get warmer, but it's just a hobby, so it'll be fine for seldom use. Since V400 is a good portion larger I cannot reuse the warmbox from the QQ-S. Thanks for the good Review, though.

[@LostInTech3D]

Yeah interesting idea, I saw someone else made a box around it but it would need to be curved.

[@Volvoamazon62]

Isn't it actually very easy to make it enclosed? Add plexiglass sheets in between or around the legs? Nothing sticks out and the electronics are on the top. Much easier than an Ender 5 for example, where a lot of things sticking outside the frame.

[@MisterNoisy]

@@Volvoamazon62 The slots in the giant aluminum extrusions are practically begging to have carriage bolts slid into them to mount an enclosure directly to the body.

[@Derpynewb]

@@Volvoamazon62 A bit late to reply but the reason you can't do this is this reduces the print area. When the effector goes to the outer section of the print area it sticks out.

[@ivoferrari9669]

Hello! Could you please share your other profiles to print in PETG, or PLA or ABS?

[@ADR69]

Is it unbearably loud? Should I expect to get some Noctuas for this when I factor in the total cost? I have them in my Q5 and they are really good.

[@LostInTech3D]

Quieter than the SR when you're in the same room. The fans aren't so loud this time and the extruder is way quieter than the BMG on the SR. I've never had a Q5, so I don't know how loud those were.

[@riccardosacchetti]

It's really nice to see some big industry using klipper in the they're products!

[@captainbootie16638]

When you pulled the nozzle out,what is that small crack on the black shroud ? Above the mounting screw.

[@LostInTech3D]

On the silicone sock? I split it 🤣it's fine. But they are a consumable.

[@Liberty4Ever]

I was most impressed with the quality of the TPU print. I can only assume that Klipper's input shaping calibration works very well for delta machines as well. It was also impressive that a delta machine is using a direct drive extruder presumably by mass reduction in the print head and larger stepper motors to move the print head. I print a lot of TPU so not having a direct drive extruder disqualified delta printers for me.

[@ExplodingWaffle101]

suprised you didn’t mention dimensional accuracy with and without the magic delta calibration in klipper. guess flsun has good build quality so you didn’t notice :)

[@LostInTech3D]

They've also done (some of) the calibration beforehand it seems

[@madsnygaard6444]

Impressed... also with the review - thanks!

[@ar-gs4hf]

What would be more faster, 1 Flsun v400 or two Ender 3 s1?

[@LostInTech3D]

I would put my money on one v400 😂

[@lolzlarkin3059]

Or 4 cheap enders running klipper?

[@WingZeroGWO]

Right now, I'm running an Anycubic Vyper, which is my first 3D printer. I absolutely love it, but the drawback is the ability to print tall and narrow items because the table moves for the Y-axis. I've been looking at this FLSUN V400 for a few weeks now, and I've officially added it to my list for next 3D printer. The fact that the bed is stationary means I don't have to model in a bunch of extra supports on those tall narrow parts.

[@LostInTech3D]

It still has the ability to knock tall parts over due to the um...4 meters per second speed 🤣 but I guess you can zhop and slow it down and stuff.

[@cailloujosh3412]

hello , just discover your chanel , and i love it , any way to make a video for the V400 complete calibration , i'm talking about the flow , the extruder and X Y Z , i get a bit lost . thank you

[@CheeseFriesAndCoffee]

The link to the TPU profile is dead :( I was really hoping to get a copy of that.

[@LostInTech3D]

Ehghghghgh give me half an hour and I'll have a page up with it on hopefully lol

[@CheeseFriesAndCoffee]

@@LostInTech3D You ROCK!!

[@xx_VP_xx]

Looking for the TPU profile but your website is down, any mirrors out there?

[@LostInTech3D]

Haha, stupid website....I'll fix it when I get chance

[@xx_VP_xx]

@@LostInTech3D Much appreciated :)

[@hayden9944]

Can you do more of TPU examples on this printer? Thinking of buying this for work. Work as an Engineer. We will enclose it and perhaps give it a chamber heater as it should be easy to do. Happy it can print ABS, PETG, PLA, nylon etc.

[@LostInTech3D]

Check out my "weird infill" vid where I use it for tpu cross infill

[@hayden9944]

@@LostInTech3D cheers babes

[@michaeldewitz1940]

TPU Profile no langer available?

[@Printed_Riffs]

What a coincidence, my wife just asked me what I want for Christmas! I’m asking for this!

[@LostInTech3D]

Good choice 😂

[@RobinGerritsen1995]

I am really curious which printer would be faster; the BambuLab X1C or the FLSUN V400... Maybe you could try to print a PLA benchy in less than 18 minutes?

[@LostInTech3D]

Race! Haha I think it would be highly dependent on the model.

[@tombeardy4833]

Well dont forget the bambus smaller plate and so on :/ Its a rly tough decision but i hear more issues with the bambu tham the V400 so i personaly might stick to FLSun

[@tombeardy4833]

If you need a new printer would you go bambo or V400? idk why but i feel lile the V400 ist a superb thing to get. the bamb...not sure

[@LostInTech3D]

That's a hot potato right there. I would go with the delta because that's my jam. But we'll see how the bambu turns out!

[@tombeardy4833]

@@LostInTech3D Currently i only own a Vyper and a faster, direct drive that may even be more precise would be sick. Only thing i think id weird is the fan direction on the V400... Not sure if thats perfect haha And the bambu with its filament change system and so on is also damm interesting

[@hunt0583]

Do you have both flsun sr and the v400 still? If so , could you test to see if you can attach the v400 direct drive on the sr?

[@LostInTech3D]

Oh...it's totally the same mount, same arms even. I've had to put the SR into storage though, they take up a lot of room! It's an interesting idea...I think it would need rewiring.

[@charlesurrea1451]

I'm still happy with my BIBO. Now, if you were to do this with a carriage above that held say....5 different materials and using and auger extruder. Something more like an injection molding press in miniature. Then I'd be impressed

[@stevejhkhfda]

Awesome...have you tried faster speeds on TPU? A dealer in the UK told me they had printed TPU at 300mm/s...............and recommended it when I asked for a good TPU printer solution for part production...

[@LostInTech3D]

Hahaha, ask them to show you that. I seriously doubt it.

[@stevejhkhfda]

@@LostInTech3D I have lol...

[@t3chninja_official]

Awesome just can't afford it. I've upgraded the crap out of my RepRapGuru i3 clone to be more Prusa clone like and get pretty decent looking prints out of it now. They looked like crap when I built the printer from new old stock, RepRapGuru went under for some unknown reason. Love the printer as I love to tinker so it's a great fit!

[@maco8799]

Can you print Lincoln Cathedral?

[@LostInTech3D]

Huh?

[@maco8799]

@@LostInTech3D I think I get Lincoln accents

[@B1GJano]

Very good video! Regret it more and more everyday I didn't jump on the initial preorder!

[@Killerjack007]

FLsun made a good job in my opinion looking at cost to performance and parts used (no use of the usual mgn9 or mgn12 linear rails) considering it can do 400mm/s at between 5k and 10k accel ? (i'm not sure of stock or tuned max accel atm) Part of it is probably due what seems to be a really lightweight effector design when looking at parts and at the effector size (effector offset makes a difference), if using 40mm rod distance as usual it should help on stability as well. On my Delta Anycubic Predator at the moment i'm able to print at 400mm/s with 10k accel. At 15k accel ringing starts being noticeable and at 20k it starts struggling which in part is due to the bigger effector i'm using with 2 5015s + Rapido + Sherpa Micro and 64mm rod distance. Regardless i spent more to upgrade and tune the Predator than you would in buying a v400 and tried and tested. PS: Despite Deltas "not needing" constant probing i wished they implemented a similar concept as the klicky probe. I replaced my probe with a klicky and it was the best decision i ever made.

[@dennisgignac5103]

Excellent review and great printer !!!

[@LostInTech3D]

thank you! And yeah, I am impressed (as you probably gathered)

[@takirosh]

That nozzle seemed to take a page out of the cht nozzle's book

[@Bonjour-World]

Enclosure options for stuff like ABS and ASA ?

[@LostInTech3D]

DIY 😉

[@JN2023]

Can the V400 print speed be utilized for PETG, ASA, TPU or is the Ender-6 with speed 150 a better option in output vs investment cost ratio?

[@LostInTech3D]

its a good question, I did print PETG pretty fast but TPU is absolutely limited. Still both faster than an ender 6 I'm sure.

[@derickkruger5680]

Have anyone tested the actual build volume e.g printing a cone of 300mm dia and 410 high?

[@MrPojopojo]

Hey! The TPU link does not work, do you have a new website?

[@LostInTech3D]

Oh...yes the new website broke everything. Let me fix it😉

[@gglovato]

¿do you know if the head has the ADXL345 accelerometer installed for klipper input shaping?

[@LostInTech3D]

I see evidence that it has, yes. 👍

[@kalihban7212]

It's too bad that this had to come out at the same time as bambu. They're both great printers, but the bambu is getting a ton of hype and kinda overshadowing news on the flsun. Klipper in the box is amazing, so I can't wait to see how this turns out.

[@LostInTech3D]

Bambu? never heard of it 😉

[@tombeardy4833]

Not sure but i feel cooler with the V400 haha

[@ulforcemegamon3094]

Agree , the Flsun is still a great printer and is actually faster than any of the Bambu labs printers (idk why but it is , perhaps Klipper)

[@DavidFernandez-sc5ws]

Stuck between one of these and a cr10 smart pro

[@EdRopple]

There's absolutely no reason to buy a CR-10 Smart, Pro or otherwise, when the Neptune 3 Plus is about to be released. (I have two CR-10 Smarts and I'd trade them straight-across for one 3 Plus.)

[@jayey195]

Would you recommend V400 for printing shoes and shoes soles?

[@LostInTech3D]

You could certainly do it, yes

[@mariusc2137]

Good...Nice review, great printer, im not the guy to comment on that BUT..the googly eyes, while they make the thing look like a spider, I.ve never laughed so hard looking at a printer..printing. Guess what I have coming from Amazon for my two Ender 5 plus🤣

[@Piction3D]

Klipper software is always nice to have

[@Penofhell]

At these speeds it's honestly necessary not just nice to have :p

[@ThePhilbox]

Whao! What's with that bed mesh....Gnarly! First layers turn out okay? PS...love the channel.

[@LostInTech3D]

It's just a big bed, they always look a bit crazy when they are shown on these diagrams, first layers are spot on as far as I can tell.

[@robbiewillis2207]

Does anyone have a PLA optimised profile for the V400 please??

[@SchwaAlien]

Definitely want to put klipper on my delta setup, them 8 bit arduino’s really can’t handle all the maths by themselves.

[@gwolfe1231]

Great review. Impressive machine. Think I'll stick with my Ender 3V2. Simple for me and it works.

[@a.3160]

V400 is just too big

[@strikereureka5081]

at least it's tall as opposed to stupidly wide i guess ?

[@cesarx1000]

Whats the Max speed for tpu :00??

[@LostInTech3D]

I'm running it at 50mm/s

[@cesarx1000]

@@LostInTech3D It looks quiet slow, why Is it too hard to print at high speed?

[@4.094]

I love delta style.

[@mattdagger1480]

I don’t like the price personally. The pre order price needs to be the actual price. Or they need to put solid guide rods in it vs the screws.

[@mattdagger1480]

If the keep the pre order price the same as the real price I’m happy. If not and they raise it I wouldn’t buy it

[@LostInTech3D]

screws?

[@mattdagger1480]

@@LostInTech3D yea. Look inside the aluminum structure parts. Behind the bests is long metal screws not solid guide rods like the cheaper version of this printer. I know there’s a term people use for these rods it has I just don’t know what that is. But the word screw rod describes them perfectly lol! Sorry I just can’t remember their real name

[@mattdagger1480]

@@LostInTech3D I definitely would buy this printer at 850-900. But if the real retail price is over that I wouldn’t unless they upgraded to solid guide rods. Their smaller version of this printer with the Bowden setup has them but for some reason the v400 they used the “screw rod’s” unfortunately

[@Richie_]

What is a cheaper delta printer worth buying? I got my 1st printer a couple of months back and would like a faster printer.

[@LostInTech3D]

the v400 is in a class of its own, it prints 4+ times faster than an ender. It's double the speed of the SR easily. If you want fast for cheaper, I think there's an argument for going with klipper + kingroon k3ps or something, it should do 150mm/s if I recall correctly.

[@Richie_]

@@LostInTech3D Thanks for that.

[@asdfdfggfd]

I really appreciated the googly eyes mod you did in this video.

[@robtaylor8816]

You can definitely make an Ender 3 v2 print as fast and at a cheaper price. However, you will spend a lot of hours upgrading it. The appeal of this machine is everything is set up out-of-box. So if you just want to print and not learn the nuts and bolts of 3D printing, then this is the machine for you.

[@LostInTech3D]

I'm not sure you could add all these features for that price, and it would be the printer of theseus by that time, I guess you'd maybe keep the power supply 😂

[@robtaylor8816]

@@LostInTech3D You sure can. Assuming you have a Pi 3b+ lying around, $300 upgrades the board, screen, hotend, extruder and a PEI sheet.

[@LostInTech3D]

Do it, we can have a print-off 😉

[@AndrewAHayes]

The first problem I saw was all the Klipper comments were in Chinese, I ha d a problem with the Creality Ender 3 Programmer to upgrade the firmware for adding a BL Touch, there were Chinese characters in the software and because my PC was in English the software failed initialy, the fix was to delete the chinese characters and rename the files with an English name, although this wont work with these Klipper comments, and if it is translated by the manufacturer its going to be gibberish, the only soloution is for the user to use a translate tool and then edit that translation into real English!

[@LostInTech3D]

could just strip them out but I didn't see any issues with them in the comments. FWIW I translated some of them and it's just the same text as the English next to it.

[@Mobile_Dom]

normal volcano nozzles work fine? huzzah, get you some volcano CHTs then :P

[@LostInTech3D]

yeah I have other reasons to need those too!

[@ThePhilbox]

@@LostInTech3D Can you describe the inside of the nozzle? Just three bores? Bridges like the CHT? Very curious....

[@LostInTech3D]

I don't know. Yet. Hold that thought though hehehehe

[@Duraltia]

I was considering buying a Delta at some point ( a few years back now ) but man am I glad I never did... The Build Volume to Machine Volume ratio is even worse than that of an i3 like Bedflinger but instead of the Y-Axis it is in the Z-Axis - I mean look at it... 50% of the entire height is wasted space and that isn't even accounting for the spool at the top 😑 Ever since building a Voron it has been CoreXY only for me with my Prusa i3 now collecting dust somewhere...

[@Johny_5]

Personally I love my Anycubic Predator delta. The 370⌀ x 455 z build volume is well worth the space it takes up. Plus for me it was easier to find vertical space than horizontal in the garage. After modding it with acrylic side panels to enclose it from dust and drafts it's been a gem. I have yet to come across a new printer that I'd consider being an upgrade. The V400 is the closest I've seen - that 4x speed would be nice, but not at the expense of the smaller build volume, and not at twice the cost of my Predator.

[@TechieSewing]

So... the best first printer money can buy, is it? ;)

[@gglovato]

the price is kind of steep, that's going square into Prusa pricing, BUT prusa still uses those awful outdated character LCD screens AND nowhere near the build volume

[@SonofTheMorningStar666]

👍

[@ChrisEpler]

Eeek that heightmap! 0.461mm variance?

[@LostInTech3D]

bed mesh takes care of it, would probably be fun on a manual levelling system tho, but it's a huge bed, they're pretty typically like this in my experience.

[@tomaszkorytkowski1399]

Watching this video gives me an odd feeling... Did you forget to put music in?

[@LostInTech3D]

You're actually right 🤣 I left some kind of spaces for music and totally forgot it.

[@pudgytech2680]

Anyone else have horrible customer service from FLSUN? I ordered in September and they said all the September orders have been sent out but mine has not. I sent them my order number and no one has gotten back to me? I have seen other comments about orders not being fulfilled. Is this company a scam?

[@LostInTech3D]

No they're not a scam, I suggest sending another email or contact via Facebook in a pinch, they are active there.

[@pudgytech2680]

@@LostInTech3D thank you for the reply! I’ve have multiple emails and tried the chat bot. I sent messages through FB and instagram. If you look at reviews on FB I am not the only one. Also IG comments.

[@pudgytech2680]

@@LostInTech3D just had another peopling comment on another post I had. They placed their order in July and not received it yet and cannot get their money back. It appears they not fulfilling orders. This should be announced and made known.

[@pudgytech2680]

@@LostInTech3D I dug deeper and there are A LOT more people out there who have not have their orders fulfilled or responses. Can you please update your video or pin a comment warning people not to purchase.

[@JerseyStyle7]

$40 off where ???????????🤔

[@LostInTech3D]

ohhh has it stopped working? hmm

[@JerseyStyle7]

@@LostInTech3D yes ? I would love to pre order one , has it still been working great ?????🤔

[@jasonhurdlow6607]

Sadly twice the price I'd pay for it... 😒

[@chrisc9213]

To bad that they are FLSUN is taking a page from Prusa and there XL, promising a ship date to gather Pre-orders to take your cash, and not being able to deliver on shipping commitements and then blame it on COVID or Logistics . This is becoming the norm Prusa, FLSUN, and Bambu Labs.....buyer beware.

[@rmdcade1717]

I'm a fan of your videos in general, but the captioning issues are so major that I just can't watch anymore. :/

[@LostInTech3D]

what captioning issues?

[@rmdcade1717]

@@LostInTech3D Captions didn't kick in for the first couple minutes of this video. Often captions don't match what's being said. That can be fine, but sometimes they miss over thirty seconds of relevant dialogue. It's even harder when this is combined with using the captions for jokes that don't appear in the audio. That can also be fine, but it should be on an alternate caption channel explicitly for those who don't need a roughly 1:1 experience.

[@LostInTech3D]

I found the captioning issue and fixed it, something corrupted it overnight it seems.

[@rmdcade1717]

@@LostInTech3D I'm glad you were able to fix that issue. I hope you'll consider addressing the others in the future as well.

[@mikehoutz7933]

Just a quick PSA regarding the FLSUN company..Like the rest of you, I have 1 email from them, the one with the order number confirmation. No responses to inquiries, no internal notification of delays, radio silence. Until the day my bank placed the funds back in my acct, pending dispute, That day, I received my second email.Hello, I see you want to return your order, we are very sorry for the late delivery, our factory failed to deliver the goods in time due to the impact of the epidemic. Now your goods are on the way to the overseas warehouse, your order was shipped by sea, and it is currently on the sea, we do not have the logistics number for the moment, we can only have the logistics number when the goods arrive at the destination. We will send them to you as soon as we arrive. We will also give you some gifts. Is that OK with you?Best regards FLSUN Service team. I have finalized my refund, they dragged that out 38 days after this with another vague free gifts no tracking.YMMV