Delta

Delta printers are a mechanically unique form of FDM printers, characteristically equipped with a circular print bed. The extruder is suspended above the print bed by three arms, rather than fixed axes, in a triangular configuration – hence the name “delta.” Due to the mechanical arrangement, delta printers are typically capable of tall prints at a high print speed and quality, but at the cost of somewhat confined lateral build volume.

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What Is a Delta 3D Printer? – Simply Explained

The Flsun QQ-S Pro, however, offers a build volume of Ø 255 x 360 mm, which is about the same size as mid-sized printers such as the Creality Ender 3 V2 in terms of the print bed (although round and not rectangular) but houses a considerably higher Z-axis height if you want to go for extra tall prints. According to the manufacturer, the QQ-S Pro is capable of printing speeds up to 120 mm/s.

Lattice Bed

Like its predecessor, the QQ-S, the Pro version comes with a lattice platform and a composite coating, which allows for fast heating and less warping and provides strong adhesion during the print. What’s more, prints can also be taken off easily once the print is completed and the bed has cooled. It is basically Flsun’s version of the often-copied Anycubic Ultrabase. With prints coming loose as the bed cools off, there should be no more need for scrapers, hairspray, glue sticks, and the mess that accompanies them.

According to the manufacturer, the printing bed reaches up to 110 °C in about 5 minutes, theoretically allowing for a wide range of consumer filaments, including temperature-sensitive ones like ABS, to be used without any problems.

Auto-bed leveling

Another neat function the QQ-S Pro has up its sleeve is its automatic bed leveling. The printhead is equipped with an auto-leveling sensor measuring 21 points mesh across the print plate. This should ensure perfectly level and smooth first layers on every print. As it is a delta printer and therefore has a fixed – nonmoving – printing bed, it only needs to be auto-leveled once, making it especially simple for beginners.

Titan Extruder

Another novelty Flsun promotes for the QQ-S Pro is the self-developed titan extruder specifically designed to handle flexible filaments better, despite being mounted to the frame and feeding filament via Bowden tube. The extruder should allow for smooth feeding of filament and powerful extrusion. With a maximum temperature of 270 °C, the QQ-S Pro is set to handle all common print filaments such as ABS PLA, PVA, and wood as well as flexible materials.

32-bit mainboard

The controller board is the brain of any 3D printer, responsible for orchestrating components like the extruder, heated bed, motors, and sensors. So, the more power you’ve got in there, the smoother the printer operates.

The QQ-S Pro is equipped with a 32-bit motherboard allowing for stable prints even at high printing speed. The printer further features a touchscreen and Wi-Fi connection, so you can connect and control the printer remotely – a pretty rare sight on printers within this price range. If that’s not your jam, you can always use the traditional way of transferring files, via a USB stick.

Further Features

Additional features on the Flsun QQ-S Pro include:

• Easy assembly – the QQ-S Pro comes pre-assembled and should be set up in a couple of minutes
• Quiet printing – according to the manufacturer, the QQ-S Pro has an operating-noise of less than -50 dB, making it suitable for workplaces
• Auto-resume – in case of a power outage, it can resume printing from the breakpoint
• Filament runout detection – if your filament runs out or breaks, the print will be paused