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Velleman K8400 3D PrinterVelleman Kits

Velleman 3D Printer

BuildTak for 3D Printers

Specification Features:

  • Printing:
    • Print technology: Fused Filament Fabrication (FFF)
    • Layer resolution: standard: 0.1 mm (maximum: 0.2 mm - minimum: 0.05 mm)
    • Build plate: 215 x 240 mm (8.46" x 9.45")
    • Build volume: 180 x 200 x 190 mm (7" x 7.8" x 7.5")
    • Print speed: 30 mm/s - 120 mm/s
    • Travel speed: 30 mm/s - 300 mm/s
    • Build plate surface: Removable layer of BuildTak™
      (consumable; also sold separately)
    • Filament diameter: 1.75 mm (accepts all filament spools with a mounting hole = 53 mm).
      Open filament policy.
    • Prints: PLA, ABS
      Testing with other materials in progress.
    • Nozzle 1&2 diameter: 0.35mm
      One nozzle supplied. Second nozzle optional.
    • Distance between nozzles: 23.7 mm
    • Maximum nozzle operating temperature: 270 °C
  • Software:
    • Firmware: Modified Open Source Marlin 3D Printer
      Firmware - user up gradable
    • Software: Repetier - CuraEngine - Slic3r (RepRap compatible)
  • Hardware:
    • Dimensions: X Y Z 360 - 380 - 395 mm (without filament spools)
    • Frame: Polycarbonate panels and fibre reinforced moulded ABS parts
  • Electrical:
    • Communication: USB 2.0 or SD card
    • Controller board: AVR ATmega2560 based
      Dual head and heated bed capable
    • Display: 4 x 20 ch. blue LCD with white backlight

    Note: At the factory, your Vertex K8400 3D printer controller board has been loaded with the DUAL extruder firmware. If you are using the Vertex printer as a single* extruder printer, you will need to upload the single extruder firmware

Download Drivers
Download ZIP FileFirmware for the Vertex 3D printer with one nozzle. Version M1-V1.1-H1.
Download ZIP FileFirmware for the Vertex 3D printer with dual nozzles. Version M1-V1.1-H2.
Download ZIP FileVertex 3D printer Repetier Host. Version 1.0.6.
Vertex printer single head
Vertex printer dual head
 Software: Repetier version 0.84 and up


Read the fully Illustrated Assembly Manual for K8400

PDF Download


ABS and PLA (Not supplied with Filament Wire)

Power Supply

100 - 240 VAC 50-60Hz 150W max.

Data Sheet for Second NozzlePDF Download


360 x 380 x 395mm



After a big success of the first 3D printer K8200, we are introducing the next generation Velleman 3D printer kit – Velleman Vertex K8400, easy, accurate, affordable & open source –  are the main advantages of this new 3D printer.

Velleman K8400 3D printer with the capability of printing with two filaments via Two 0.35mm Nozzles. Supplied in a robust construction featuring transparent wall protection and integrated SD card reader & controller (also controllable via USB interface).

The K8400 does not have a heated print bed - BuildTak works for both ABS and PLA, which means if you are using a printer that can print in either of these materials it is not necessary to change the surface between builds. Heated print beds are not a problem, BuildTak is composed of high quality raw materials and is designed to withstand the high temperatures of a typical FFF 3D printer (i.e. 110-125C heated print bed)

The Vertex is the next generation of Easy, Accurate, affordable and Open Source 3D printer self assembly kit. Removable build plate & second extruder nozzle available as optional extras.

There are plenty of new features that make this printer extraordinary:

  • No soldering required
  • Modern housing
  • Prints PLA, ABS – open filament policy
  • PLA 1,75mm – ensures finer layers of printed object
  • Nozzle 0,35 mm - possibility to use second nozzle (optional)
Order Code Each 
K8400Velleman Vertex 3D Printer409.99 
K8402Second Nozzle for K8400 Printer99.99 


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Tel: 0191 251 4363

Fax: 0191 252 2296


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All Prices are in Pounds Sterling and Exclude VAT