Flsun qq 3d printer review

Simple FLSUN QQ-S Review – Worth Buying or Not? – 3D Printerly

3D printing is definitely growing in popularity and as a result we’re seeing plenty of manufacturers getting into the development of 3D printers. FLSUN is up there with their release of the FLSUN QQ-S (Amazon).

The QQ-S 3D printer offers a bigger printing size of φ225 x 360 mm which is perfect for most projects or designs out there.

It has a whole host of features that give it the ability to print fast, reliable and even remotely using Wi-Fi. The all-metal structure gives it that solid foundation necessary for high quality prints, along with the precision in its physical dimensions.

The futuristic, clean look of this 3D printer is desired by many so this review will look in-depth at the FLSUN QQ-S to determine whether it’s worth buying or not.

All Metal Structure
90% Pre-Assembled
Lattice Glass Platform
High Printing Speed With Three Axis Linkage
Resume Power Feature
New 32-Bit Motherboard
24v PSU, 15A Power Supply
Titan Extruder
Wi-Fi Remote Control

All-Metal Structure

Metal 3D printers are definitely the preferred material when it comes to stability and precision on a large machine. You’re getting a high quality metal structure which gives you durability and safety for the machine. When done correctly, as the QQ-S is, you’re getting a sturdy 3D printer that you can rely on.

90% Pre-Assembled

Everyone loves things being simplified for you, so the assembly process isn’t much different. Once you receive your QQ-S, you’ll notice that most of it is already pre-assembled for you, requiring around 20 minutes to fully assemble the 3D printer.

Lattice Glass Platform

We shouldn’t overlook the importance of the print platform that your model will be built on. You’ll be receiving a surface called the Lattice Glass Platform which gives great adhesion for the initial print, and easy print removal after your print has cooled down.

This ceramic glass platform is well-loved by users of this 3D printer.

High Printing Speed With Three Axis Linkage

The three-axis linkage sounds pretty complex, but just know it’s what gives the QQ-S the ability to move fast for your printing desires. It has a well-developed structure which provides high speeds, up to 60% faster than some other types of printers.

Once you hit print on your 3D printer, seeing the speed at which this Delta 3D printer can work is serious business.

Resume Power Feature

No one likes the unlikely event of a power outage, but even worse is having one while in the middle of a 15 hour print! All we would need to counter this is the resume power feature, which the QQ-S so conveniently has. It means that when your power is accidentally cutoff from the 3D printer, the last printing position is committed to memory, so it can resume the print after turning on.

New 32-Bit Motherboard

Compared to the original QQ, the QQ-S has a nice new motherboard addition which improves the stepper response and positioning accuracy, for better overall quality and peace of mind.

24v PSU, 15A Power Supply

The accompanying power supply to this 3D printer contains the mosfet module which can keep the heated bed heating for long periods of time without issues. You can heat the bed to 100°C for 48 hours.

Titan Extruder

This extruder gives the ability to print flexible filament, with a good grip on the filament to guide it through the printer.

Wi-Fi Remote Control

You can smartly control the 3D printer through your phone with the Wi-Fi remote control feature.

Benefits of FLSUN QQ-S

Easy to assemble and setup, taking around 20 minutes
Auto-leveling is also easy to do, just make sure to clean and pre-heat the nozzle
Get great looking prints straight out the box without tinkering
Relatively quiet 3D printer so it doesn’t have to be a disturbance below 50dB
32-bit controller gives a smoother printing experience
Ultrafast 3D printing speeds
Supports flexible filament
Cooling system increase lifespan of the 3D printer
Nice responsive touchscreen with simple icons
Each 3D printer factory-tested 48 hours before packing
Peace of mind with the power resume function
FLSUN Facebook group for support and assistance
Great packing on the 3D printer

Downsides of Simple FLSUN QQ-S

There have been some reports of the 3D printer coming in dusty, so make sure to give it a little clean inside and out. This could have been a transport or warehouse issue with the production and packing process, so I wouldn’t worry too much about this, as it can easily be corrected.

Make sure you correctly change the PSU voltage, where it will guide you in the instruction manual or you can run into problems. The switch for changing the voltage can be found after removing the bottom cover.

The color of the wiring has been known to be non-traditional which shouldn’t affect operation, but can be confusing when first seeing it. Instead of the usual green or yellow color for the Earth wire, it may be red.

There may be an issue with the wiring of the extruder stepper motor since it goes through the metal case in the assembly process. Unfortunately there isn’t a rubber grommet to stop it from rubbing against the metal, so you should try putting some type of insulating tape around the point of contact.

You might not be abler to upgrade to a dual extruder system unless you change the motherboard since the 32-bit MKS Robin Mini only has one extruder motor connection.

Specifications of Simple FLSUN QQ-S

Build Volume: 255 (D) x 360 (H) mm / 10.0 (D) x 14.1 (H) inches
Number of Extruders: Single
Print Speed: 10-300mm/s
Nozzle Diameter: 0.4mm(can be replaced with 0.3mm and 0.2mm)
Max Nozzle Temperature: 270°C
Max. Heated bed temperature: 110°C
Layer Thickness: 0.05-0.4mm
Filament Diameter: 1.75 mm
Printable Materials: PLA, ABS, flexible, HIPS, wood, PVA
Connectivity interface: SD card and USB
Display: 3.2″ Full color touch screen
Leveling: One Click Automatic with auto level sensor
Supported Software or Slicing: Cura, Repetier-Host
Supported OS: Mac OSX, Windows
Supported File Formats: G-Code, OBJ, STL
Input Power: 110 / 220V
Output Power: 24V
Product Dimensions: 290 x 350 x 800mm

Customer Reviews

Many users love how the FLSUN QQ-S is a great 3D printer for a first time user, since it doesn’t take much to get it started and you can begin making high quality prints soon after assembly.

You’re not limited to just PLA like many 3D printers out there. Being able to expand your material usage from PLA to PETG to TPU is a great feature, along with the actual speed you are getting from this machine. Print quality does however increase when using slower speeds.

People have reported great customer service by FLSUN on their Skype chat and getting assistance from the official Facebook group.

It’s not uncommon to run into some kind of issue down the line, where one person had a failed part cooling fan and the bed wouldn’t level properly. They actually ended up sending them a replacement fan and glass bed, along with a firmware update.

This solution solved all their problems, giving a serious improvement to their 3D printing journey.

Rather than the bundle SD cards you get with other 3D printers, this one comes with a brand name SD card and a good amount of bundled PLA filament for your printing pleasure. You also get a few spares and tools as a gesture to keep things smooth.

It’s great for beginners, but even an engineer who had 3D printing experience was stunned at the quality and number of features provided at such a good cost. Users love the speed of the QQ-S and how it works very well with several types of filament.

One user did have a complaint about their bed leveling, how after one year the leveling process was coming to be a hassle. It resulted in some poor first layers, but there are definitely methods to fix this, like the review mentioned above.

The automatic bed leveling definitely helps out with this process, where most people have no issues with it.

Make sure not to put the calibration face plate the wrong way around like one person did, because it has a slightly sticky side which can stick to the build glass.

You have the freedom to make upgrades to your 3D printer.

Most people show their appreciation for this 3D printer, albeit with a few troubleshooting issues and whatnot. It has a rating of 4.1/5.0 which is pretty solid.

Conclusion

Whether you are a beginner or expert, the FLSUN QQ-S has shown its presence professionally, although it has had some blips along the way. With time and experience, things slowly develop and become better.

I think if you were to get yourself this 3D printer, you would love the features, speed and print quality along with the very competitive price and good build volume.

You can really show off your creativity with this 3D printer and proudly show off your prints to friends, family and impress yourself!

Get the FLSUN QQ-S 3D printer from Amazon today.

Test of the FLSUN QQ-s Pro: a very fast Delta 3D printer!

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If you are looking for a fast 3D printer, you need a Delta 3D printer, if you are looking for a fast and cheap 3D printer, you need a QQ-s Pro!
Today we are going to test this 3D printer, it is my first machine from the FLSUN brand, which I was able to get via the tomtop website (which I didn’t know either until now).

A little presentation of the FLSUN brand before I start!

FLSun is a Chinese brand of 3D printer that has been around since 2015. It was not very well known in Europe until now, but it is gradually starting to make a name for itself thanks to its Delta type 3D printers, which it has made its speciality!

Indeed if we look at the manufacturer’s catalogue, you will find only 3 machines, the FLSun Q5, the FLSun QQ-S Pro and the latest FLSun SR (Super Racer), all 3 Delta machines

It’s been a while since I last tested this type of machine (for almost 3 years), and I hadn’t yet had the opportunity to try this brand of which I had read quite good reviews.

Delta FLSUN 3D printers

FLSun QQ-S Pro (Tomtop EU Warehouse)
FLSun SR Super Racer (Tomtop EU Warehouse)
FLSun Q5 Delta (Tomtop EU Warehouse)

About Tomtop

This machine comes from Tomtop warehouses, much less known than AliExpress and Amazon, and yet Tomtop is a very big seller of hightech products and especially 3D printers, they have warehouses in Europe and are often among the first to have stock on new products. I didn’t know Tomtop until now, and I was pleasantly surprised by the speed with which I received the machine, in less than 5 days from a German warehouse. The machine arrived perfectly packaged, and it is indeed a genuine product (I asked several brands, they work well in partnership with Tomtop and send them a lot of stock).

Features of the FLSun QQ-s Pro

Printing area: 255 (diameter) for 360mm height
Heated platen with ultrabase surface
Self-levelling sensor
Titan type bowden extruder
Colour touch screen
WiFi control (not tested)
32bit motherboard with silent drivers
Micro SD card reader
Resume printing in case of a break
Overall the features of this machine are interesting, there is a silent 32bit motherboard, and an auto-levelling sensor, quite advanced features not always found on entry level 3D printers. Its price is also quite interesting, around 300€ excluding promotions.

Unpacking and assembly of the FLSun QQ-s Pro Delta

The box is much thinner than a Cartesian printer, and relatively light.

When unpacking, we notice that the machine is relatively well protected, all the electronic part is already pre-assembled, but there seems to be a little more assembly than a Cartesian 3D printer. In any case, the instructions are quite explicit, and it should not be a problem to assemble it. You receive a small 200g spool of white filament with this machine.

The assembly of the machine turned out to be easier than I thought, it takes about 30 minutes to assemble the machine, the most delicate part being to assemble the head on the rods, taking care to position the cables correctly, but nothing too complicated, it’s within the reach of everyone, even a non handyman!

Once assembled the machine seems quite stable, and the components of good quality, the belt tensioning system (the little knobs on top of the machine) are quite practical. Now we can see what this QQ-s Pro has under the bonnet and start our first impressions!

Before you start your first print, let’s adjust the platen!

This machine is equipped with a self-levelling sensor, but a bit different from what I’m used to seeing on other machines. No BL Touch on this Delta, it is indeed a specific sensor that you have to remove once the plate adjustment is done, it is not necessary to put the sensor back at each print, for my different print tests, I didn’t need to do it again, and I was able to make about 10 prints without any problem. The sensor is magnetic, very easy to install and remove, it’s a well thought out system, and also very accurate.

First print with the FLSun QQ-s Pro

You will find different models on the SD card, which I advise you to print before going any further. Here are my first impressions of this machine.

The rendering is rather clean, and the machine is relatively silent during the printing, and especially very fast! This machine is well functional, without any particular adjustment, and 30min after unpacking!

Slicer configuration for the FLSun QQ-s Pro

I usually use the Prusa Slicer, and it’s a good thing Prusa recently added the Delta machines from FLSUN!

We will not waste too much time on the slicer configuration, and we will take the default profile proposed by Prusa Slicer

Prints made with the FLSun QQ-s Pro via Prusa Slicer

Here is a small slideshow of the prints I was able to make, with a layer height of 0,20mm, and filaments from Sunlu (blue), Eryone (white), and Hiprecy (black). I was also able to make a print in vase mode, and the result is really good ! I made myself a little wastepaper basket that I use to throw away my little PLA scraps, this print is really rigid and solid.

I didn’t encounter any problems during these prints, and I also had a very good grip, this self-levelling sensor is very efficient, even when printing on the whole surface of the board.

To conclude on this FLSun QQ-s Pro

This was my first FLSUN machine, and I’m really happy with it. A few years ago you could often read that Delta machines were the most complex to use, but the FLSun QQ-s Pro is really easy to use, and suitable for beginners. I appreciate the quietness of the machine and the accuracy of the self-levelling sensor

The print volume is not huge but is more than enough for most purposes, if you like to print vases this machine is perfect, for a robust and very fast printing.

I would recommend this machine without hesitation, and regarding Tomtop you can also buy this machine without hesitation from this dealer

Delta FLSUN 3D printers

FLSun QQ-S Pro (Tomtop EU Warehouse)
FLSun SR Super Racer (Tomtop EU Warehouse)
FLSun Q5 Delta (Tomtop EU Warehouse)

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3D printer Flsun QQ-S a year later. Mini review

Once again, flipping through Aliexpress came across an interesting printer - Flsun QQ-S. This is the so-called delta. The mechanism of such printers has a number of advantages in comparison with classical ones on the Cartesian coordinate system. It is very simple, allows you to print at huge speeds and is very compact. The main drawback is capricious in setting. It is very difficult to set the level of the table. Therefore, 80% of all printers on the market are Cartesian. nine0003

Flsun QQ-S chip - auto level. The printer builds the curvature of the table and then takes it into account when printing. Of the additional goodies: built-in wifi, a 24v power supply, a 32-bit control board and a Titan extruder. As they say - shut up and take my money.

Well, now, having removed the noodles from the promotional videos, I'll tell you about the jambs of this model. IMHO the main problem of Flsun QQ-S is the flimsy 8mm shafts. The head can be bent with a finger. It saves only that the head is very light and at speeds up to 60mm / sec there are not enough forces and moments of inertia to deform these same 2x8mm. If you have layer shifts and other charms, then you did not tighten the screws holding the shafts in plastic cups or the belts stretched. Speaking of belts, they are terrible quality. Thin and lose their shape very quickly. nine0003

As soon as I replaced them with the first available GT2 6mm Fiber Glass Reinforced from Aliexpress, all problems with automatic calibration were gone. It really became automatic. Before that, you still had to manually adjust the machine through the menu. If I measured correctly, each shoulder needs 148.5mm.

Changed brass-graphite bushings for LM8UU. Here is my thread about it. During printing, the roar stands like a bucket of bolts, but the coefficient of friction has dropped from 0.2 to 0. 002. The difference is 100 times!!! The head began to move more vigorously, the printing speed increased by 30%. nine0003

The main surprise is the pulls. Only 2 out of 6 were 280mm. Two more were 280.5mm, one was 281mm and the last one was 285!!! But the Chinese have collected well done, so you will notice the hell. It turned out after replacing the belt, when the head got crooked.

The Flsun QQ-S has an MKS Robin Mini board from Makerbase. Its main advantage is STM32F103ZE with a clock frequency of 72 MHz. This is a huge advantage for any delta printer with its simple kinematics but complex system of coordinate equations. The disadvantage of the board is that A49 drivers are not replaceable88 with their "salmon skin" effect. I had to remove the 10KΩ resistors from the 13 legs of the drivers - skipping steps and moiré were gone. The article why not tl-smoother and why is here. The board diagram is here. We change all Rm6_Mx to jumpers.

Another problem is the flimsy aluminum motor brackets. When the belts are pulled, they bend. I designed a long boot for motors - it rests on the bottom cover and prevents the brackets from deforming.

Two boots fitted perfectly, but the third did not. It turned out it didn't. Bent it with a hammer, it's aluminum. That's Chinese quality. nine0003

Where without the classic bowden extruder upgrade — replaced the standard tube with a smaller diameter. One meter will be enough. Retracts decreased by 10%.

And now, after almost a year of masturbation for my own money, we have

Waiting for GT2 6mm Idler Timing Pulley 16 Tooth 3mm Bore . That is, there are not cylinders, but cones.

In general, Flsun QQ-S - we wanted the best, but it turned out as always. The only good thing is the technical support. Any part under warranty is sent without questions and very quickly. For example, after a month of use, the table cover peeled off. Received a new one in 2 weeks, complete (glass, heater and sensor) for free. As compensation, they added 0.4mm nozzles, although I did not ask them about it. Nicely. nine0003

Many owners collective farm brackets for trailer wires, but this is not necessary. It stretches like a string and snaps into the body.

FLSun QQ-S. Personal experience and how I overclocked it to 3500mm / s2.

Just a note so that those who want to buy understand how much time and effort they may have to invest in QQ-S to make it really fast and still not a sensible delta.

Became the owner of FLSun QQ-S in January 2019. This was the first version with a plasticine effector and calibration not with a limit switch, but with a "nozzle on a conductive plate". nine0003

There was no obvious need to print a lot of 3-D parts (although with all the shortcomings, the printer managed to print quite a few parts I needed to work with quite sufficient quality), so it was decided to take not a good printer for work, but an interesting one for myself.

In principle, it was clear to me that the FLSun QQ-S is, if not a bad printer, then never a good one. But it was not clear why. At the time of buying the printer, there were no reviews at all, a week later a "review" from Voltnik appeared. nine0003

What can I say about Kukusik as a user? Did you see Dima Sorkin's review? Dima did not touch on 60-70% of the minuses of this "unit". I don't think Dima tried to print ABS/SBS/HIPS/PP-GF. If he had tried, he would have talked about this unit in completely different words and expressions :-)

But this is a lyric. In short, the result at least somehow similar to the quality standards of 2019 (adjusted Ender-3) on QQ-S can only be obtained when printing PLA plastic at speeds of 30mm/s.

Well, it was interesting for me to fall in love with the delta and I realized my love almost completely. And the printer after 11 months is still far from the state of "prints normally". nine0003

How the printer looks now can be seen in the photo above. And here is the result of printing Pet-G, nozzle 0.4, layer 0.2 at at a speed of 100mm/s (just 100mm/s, and not these tricks, when the internal filling is 100, and the outer perimeters are 20mm/s) and acceleration 3500mm/s2, jerk - 30mm/s .

In real life, the cubes do not look completely terrible, and certainly many times better than the cubes printed by my stock QQ-S with an outer perimeter speed of at least 60mm / s (while in stock acceleration is generally ridiculous - 1000m / s c2). nine0003

Well, PLA on the same parameters (100mm/s, 3500mm/s2) layer, 0.2, but the cube itself is 40x40.

To understand what the stock QQ-S is - when Marlin came out on QQ-S in May 2019 (thanks to Alexey Polyakov - he is a hero) and I was able to use the standard G33 test, he gave me Std Dev = 0.440). That is, the delta at least somehow printed solely due to Auto Bed Level, wildly tilting the nozzle, but somehow printed). After all the improvements, I have sd around 0.060 and it's still bad just mechanically for a delta printer). nine0003

For those who want (God forbid) to buy Kukusik a list of upgrades already made:

1) Motherboard. Native motherboard wild FAIL - I replaced it with a Chinese clone of Duet 2 Wi-Fi. Good TMC drivers (keep in mind that the Wi-Fi version has only SpreadChop, not StealthChop, the Maestro version of Duet has StesChop), very easy setup and selection of parameters on the go. In principle, some SKR 1.3 or Gen.L will also be normal, but you still have to master the compilation of Marlin 2.0. Smoothie, Clipper, Repeater... Anything will be better than a native board. So that you understand how bottom she is. The native board combines its own 5V and 5V source via USB. Finish, dude. You can't do that. On the same SKR, a toggle switch was made to select the operating mode. nine0003

2) Shafts came to me 7.92-7.94mm. It is clear that the complete bushings on them backlash like crazy. Replaced with IGUS (they can be pulled together to sample the backlash). By the way, LM8UU for a month of operation quite distinctly "rolled" clearly visible tracks on these shafts. So with hardening my shafts are also not so hot.

3) Replaced the head (native hotend is a Frankenstein with a wild mess of parts from different versions. Here's how it's written in the "popular FAQ": It's a combination of: XCR BP6 block, mk8 nozzle, V6-clone heatsink & throat. And all this is assembled with glue.), plus a 40x40x15 fan near the native head blows over the TOP radiator fins, increasing the melt zone, after which the air blows down along the hot end. ABS and a failure in the form of Th-Error3 (see the paragraph about a bad motherboard) say thank you :-) ) So now I have the whole BP6 installed (thermal barrier on cogs) to make it easier to maintain and to be able to change the hotend with Teflon to full -metal hotend in a minute or two (replaceable effectors are still "in work"). nine0003

I replaced the rods on fish-eye friction bearings (literally after 3 months of working with lubrication, there were too large backlashes) for rods of normal strength with magnetic friction bearings.

5) Installed an extruder (a solid complete clone of Titan) in the form of a "flying extruder"), reducing the length of the feed tube from 80cm to 30cm (the retract became 2. 5-4mm versus 8-12mm).

rigidity: dismantling of a frail bottom with legs, "shoes" on the axle motors, holders of 8mm shafts, strut/cover struts.0003

7) Little things, like wiring/resistors to calm the radiator/backlight, replacing sloths and so on.

8) Passive thermal chamber.

9) Refinement of the heating table. It defaults to on ABS spacers Karl! The table, which heats up to 110 degrees, so that the ABS starts to "flow", stands on ABS spacers! And also, Karl, they put ultrabase on 2mm aluminum on thermoplastic adhesive . On thermoplastic glue, Carl! It's good that not on the usual "thermal nails" that float at 70 degrees. But at 110 degrees my table began to "puff". nine0003

What do I plan to do next?

1) Airflow must be designed and ducted to precisely direct the flow. At a real speed of 100 mm / s, 40x40x10 impellers blowing just "somewhere approximately under the nozzle" are no longer enough for PLA, you either need to aim them more accurately or make air ducts.

2) Belts. Came GATES and PU with steel cord. I want to see how it will work with them. Just wondering.

3) Reprint printed parts from new plastic (there is one plastic in mind that is promising for 3D printer parts, it promises to be better than ABS and even PLA). nine0003

4) Replace the shafts with 12mm steel gauge.

5) Replace the plastic spacers on the rods with spacers with deeper "holes" or generally remake the rods with even more powerful magnets (after upgrades to the stiffness of the effector / shafts, this very place became the "weak" point of the structure and the head began to be sometimes "teared off" from them (previously, she could simply walk 0.5-1 mm on the non-rigidity of the shafts when she hit an influx of plastic or another emergency, and now a fig or two - she naturally “tears off” her head from magnetic supports, because she has nowhere to walk and it’s good if beckons back pulls the ball to the thrust (as soon as I figure out where to put the video in 120k / s - I’ll post it, it’s an extremely interesting sight, how it breaks the magnetic connection with a force of almost 400gf and then the thrust finds the ball back)).