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Velleman K8400 Vertex 3D Printer Kit

The Vertex is an open source 3D Printer Kit that offers stand-alone printing on an easy to assemble platform. Keeping the cost of the 3D printer down without sacrificing accuracy or quality means more people can enjoy premium printer features at lower costs!
Product No. M2C1A9VE
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List Price: $699.99

Robust Extruder

The ultra-reliable stainless steel Extruder feeds 1.75mm filament with ease. The Printer is expandable and supports a second extruder, allowing for prints with multiple filament types simultaneously.

Superior Build Surface

The 4mm aluminum frame holds a 215mm x 240mm x 4mm removable glass plate and a Buildtak sheet. This setup allows for a level and solid print bed, combined with the fantastic Buildtak surface. Check out additional BuiltTak sheets or the BuiltTak FlexPlate system as well!

Standalone Printing

An on-board SD memory card reader means you can print without being tethered to a computer. Gone are the days of sacrificing your computer to managing your printer while a 24-hour part is printing. While the Velleman K8400 supports printing over USB 2.0, the included SD card slot allows the user to load print files directly into the machine.

Printing Specifications

  • Print Technology: Fused Filament Fabrication (FFF)
  • Layer Resolution Standard: 0.1 mm (Minimum: 0.05 mm - Maximum: 0.2 mm)
  • Build Plate: 215 mm x 240 mm (8.46 in. x 9.45 in.)
  • Build Volume: 180 mm x 200 mm x 190 mm (7 in. x 7.8 in. x 7.5 in.)
  • 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: 0.35 mm One nozzle supplied. Second nozzle optional.
  • Distance Between Nozzles: 23.7 mm
  • Maximum Nozzle Operating Temperature: 270°C



  • Dimensions (X Y Z): 360 mm x 380 mm x 395 mm (14 in. x 15 in. x 15.5 in.) (without filament spools)
  • Frame: Polycarbonate panels and fibre reinforced molded ABS parts
  • Weight: 10 kg
  • Average Noise Level During Operation: 52 dBA (at 1 m)
  • Ambient Operation Temperature: Max 25°C
  • Storage Temperature: -10°C to +40°C


  • Communication: USB 2.0 or SD card
  • Controller Board: AVR ATmega2560 based dual head and heated bed capable
  • Display: 4 x 20 char. blue LCD with white backlight
  • AC Input: 100 - 240 VAC 50-60Hz 150W max.


  • Firmware: Modified Open Source Marlin 3D Printer Firmware - user upgradable
  • Software: Repetier - CuraEngine - Slic3r (RepRap compatible)

Why Buy From MatterHackers

At MatterHackers we pride ourselves on offering friendly service, advice and support. Our prices are always the lowest in the industry when you factor in our free shipping for every item on the MatterHackers site (including 3D printers). Most of all, our staff is friendly and knowledgeable. They have been 3D printing for several years now and are happy to answer your 3D printing questions. Have a question about the amazing capabilities of your new Vertex? No problem. Feel free to give us a call.

In short, buying a 3D printer from MatterHackers is a holistic experience. We are here to partner with you through every step of your 3D printing journey. Additionally, we have all of the PLAABS, and Specialty Filament that you could ever need to design anything you can imagine.

Please note that printer kits are not returnable after having been opened and worked on. If there is a problem with the packaging or damage during shipment please return the product immediately, otherwise a return will not be offered after assembly.