3D Printing Blog

Here is another one of the still very few 3D Printers on the market that comes with the Klipper firmware pre-installed and ready to be used by the user – the FLSUN V400, similar to the BIQU Hurakan 3D Printer with Klipper firmware. The V400 3D Printer from FLSUN is a bit different in terms of hardware however and also has a different approach to using the Klipper 3D printer firmware as well compared to what BIQU did, so let me go into a bit more detail on that now…

The FLSUN V400 is a high-speed Delta 3D printer unlike the Cartesian-style 3D printer that is the Harukan from BIQU and the type of 3D printer here refers to the what that the printer head and build plate moves during operation. With Cartesian 3D printers like the Hurakan we have the build plate moving in the X and Y axis and the print head moving on the Z axis, with Delta 3D printers like the V400 however the print head is attached to three arms in a triangular configuration that can individually move only up and down and synchronizing their movement the printing head can move in all the three axes as well. The build plate on Delta printers like the V400 does not move, only the printing head is moved around while printing. Generally, the Delta 3D printers are able to achieve faster printing speeds compared to Cartesian 3D printers and the V400 is no exception here, but combining a Delta style 3D printer with the Klipper firmware allows for even faster speeds while retaining good quality.

The very fast printing speed is one of the key things when talking about the FLSUN V400 3D printer as it is capable of working with up to 400mm/s printing speed according to the official specifications and that is really fast… the Cartesian-style Hurakan for instance is rated at up to 180 mm/s max and is still considered very fast. In fact, the FLSUN V400 is probably one of the fastest open-source and affordable 3D printers out there, and it comes with the Klipper firmware and a nice set of features including a large build volume (a round build plate with a diameter of 300mm and height up to 410mm), auto-leveling and filament sensor, direct-drive extruder capable of operating at up to 300 degrees Celsius and a 7-inch touch-screen display for printing info and control.

FLSUN V400 3D Printer Specifications:
– Model: FLSUN V400
– Printing Size: Φ300x410mm (Φ11.8×16 inch)
– Printing Tech: FDM
– Nozzle diameter: 0.4mm
– Layer Height: 0.05-0.3mm
– Precision: +-0.15mm
– Nozzle Temperature: ≤300℃
– Hotbed Temperature: ≤110℃
– Filament Support: PLA, PLA+, WOOD, TPU, ABS, PETG, PC, NYLON
– Printing Speed: Max 400mm/s
– File Format: STL/OBJ/AMF/3DS
– Slice Software: Cura (Recommend)/Simplify3d/Prusaslicer/ideamaker
– File format: G-code/UFP (Previewable model)
– Working mode: Website/FLSUN Speeder Pad
– Data transfer: WiFi/USB disk
– Voltage: Input: AC 115V-230V Output: DC 24V
– Power: 450W
– Leveling Type: Auto-Level
– Filament Detection Sensor: Yes
– Extruder Type: Direct Drive Extruder
– System: Flsun 1.0

The approach to providing Klipper firmware support on the FLSUN V400 is a bit different as already mentioned as here the extra computing hardware is not inside as a part of the main control board of the printer like with the Hurakan, but instead is taken outside and packaged together with a 7-inch touchscreen display. FLSUN calls this “device” the Speeder Pad and it is also available separately as an addon for other of their 3D printers and apparently is also compatible with some other brands allowing them to be easily upgraded to support the Klipper firmware. The Speeder Pad is however a part of the standard V400 configuration, so it will work out of the box (other printers will require firmware updates) allowing you to quickly and easily start working with the 3D printer and utilizing the features provided by Klipper firmware though the display of the Speeder Pad or via network connectivity through the web-based interface available.

There is another company out there that offers a very similar approach to adding Klipper firmware to their 3D printers and to others as well and that is Creality and their Sonic Pad, however they do offer this as an optional upgrade only and the company does not have at this time a 3D printer that does come out of the box with the Klipper firmware pre-installed. That is probably just a matter of time before they start bunding the Creality Sonic Pad with a compatible Ender 3D printer for instance and having it ready to work out of the box.

The FLSUN V400 3D printer with Klipper firmware pre-installed is priced at $849 USD on the official website, though you can find it on Amazon for just a slightly more with a faster delivery. That price is definitely not what an entry-level 3D printer costs and the V400 is not one of these anyway, for more affordable starting option with Klipper the BIQU Hurakan is much better alternative as it comes at less than half the price of V400. The FLSUN V400 however not only offers much faster printing speeds (one of the fastest out there) and larger build volume, but also other improvements such as direct-drive extruder that is better in terms of material compatibility compared to Bowden and that can print at higher temperatures, larger touchscreen display for monitoring and controlling the 3D printer. So, the FLSUN V400 is a more expensive solution with Klipper firmware out of the box, but it also offers more in terms of what you get compared to Hurakan, so, if you are looking for a larger and faster 3D printer with Klipper support out of the box the V400 is the better option.

It is interesting to note that the FLSUN V400 is kind of like an upgraded FLSUN Super Racer Delta 3D printer (rated at 200mm/s printing speeds), building on top of that already very good foundation and adding Klipper support as well. If you already own the Super Racer 3D printer you can upgrade it with the Speeder Pad to support Klipper as well and turn it even faster almost like V400, but not quite the same. Printing speeds of about 300-350mm/s should be achievable with just a ~$150+ upgrade that should be done relatively easy, however do note that the FLSUN SR uses a Bowden type and not a direct-drive extruder unlike the V400!

– The official FLSUN V400 Klipper 3D Printer product page…
– If you want to order the FLSUN V400 Klipper 3D Printer on Amazon…