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3D printers have been in use in the manufacturing industry for more than thirty years, but it is only really in the last ten that the market has opened itself up to other applications on a large scale, such as mould making for investment casting and tooling. Applications are also emerging for the medical and dental fields.

All of which is to say, 3D printing is no longer constrained by manufacturing limitations or design complexity; and as a result, it is seeing incredible growth.

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Onyx Pro

Industrial-Grade 3D Printing for Serious Engineering Applications

Availability: In stock

7765 £7,765.00
  • £9318.00 INC. VAT
  • £7765.00 EX. VAT


Markforged bring their revolutionary CFF technology to the desktop with the Onyx Pro. Reinforce the carbon fibre infused nylon (onyx) base with continuous fibreglass for even more superior strength in your parts.

Show parts to your customers directly from the print bed - no post processing required.


  • Materials: Print with Onyx and Fiberglass CFF, to create strong, tough parts
  • Turbo Print: Print at twice the speed, without any loss of surface resolution
  • Intuitive: One-button printing and easy slicing with Eiger software
  • Application: Print end-use parts, prototypes, consumer-facing assemblies and more.


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Onyx, Fibreglass
Layer Height
100 microns (0.1 mm)
Build Dimensions
320 mm x 132 mm x 154 mm
Manufacturer SKU
WiFi, USB Stick, Ethernet Cable
Composite Filament Fabrication (CFF) ™
Eiger (Free Trial)


The Markforged Onyx Pro is an industrial-grade 3D printer with a difference. With it, you can create prototypes, end-use parts and consumer-facing products that have outstanding strength, wear resistance and durability, and a glorious matte black finish. Start printing with Onyx filament, a chopped carbon fibre and nylon hybrid to create super-strong, tough parts, or go one step further by infusing parts with fiberglass.

Onyx Pro

Onyx + Fiberglass = Super-Strong, Super-Durable Parts

The Onyx Pro is a Fused Filament Fabrication 3D printer with dual extruders. Designed from the ground up to 3D print carbon fibre, the Onyx Pro has wear-resistant nozzles and industrial-grade mechatronics to ensure maximum uptime and reliability. It supports two materials: Onyx and Fiberglass. Onyx filament is part nylon, part chopped carbon fibre. On its own, it offers outstanding dimensional stability, and the toughness and wear resistance of nylon. However, the Onyx Pro can also print Fiberglass CFF. This material is electrically insulating and has an extremely high compressive strength rating of 97 MPa. You can infuse Onyx parts with Fiberglass CFF, to create end-use parts that are as strong as metal.

3D Printed Wrench

Feature-Packed, and Built with Engineers in Mind

The Onyx Pro is the first Markforged 3D printer to have ‘Turbo Print’, a feature that enables you to print parts at twice the print speed, with no loss of surface detail. Printed at 100-microns, ‘Turbo Print’ reduces print times considerably while keeping parts true to their CAD design. In addition to this, the Onyx Pro has Wi-Fi and is linked to Eiger, Markforged’s cloud-based 3D printing software. Eiger is a dream to use; it has a feature-rich tool set with an STL parts library and an intuitive interface. Eiger also slices your CAD design for you, so it’s an all in one software that will save you time. And, best of all, the Onyx Pro comes with everything you need to get 3D printing right away. In the box, you get the printer (of course), an 800cc Onyx spool, a 50cc Fiberglass CFF spool and an extra print bed.

Desktop Print Farm

All in all, the Onyx Pro is an outstanding 3D printer for engineers. It commands a premium over the Onyx One, but with the ability to print Fibreglass, it is the more capable machine.

What People Say

“The lightweight strength of even just Onyx alone and the manufacturing complexity additive manufacturing allows [meant] builders created unique, lightweight designs that stood out in the arena. Foiled, which ended up taking first place, had a fiber reinforced chassis and weapon insert”
– Alex Crease, Markforged on printing battle robots

“Onyx is one of my favourite materials because it combines stronger composite material with the chemical resistivity of nylon”
– J.R.Everett, Dixon Valve

“Since we do a lot of low volume or one-off jobs, 3D printing is a great way to do that cost effectively...it’s pretty quick and it’s not as expensive as other manufacturing methods.”
– Alan Rencher, Media Blackout

What's in the box?

Onyx Pro printer
Eiger Software (Cloud based)
800cm³ reel of Onyx
50cm³ reel of Fiberglass
1 x True Bed Print Bed
Dry box
3 x CFF Nozzles
3 x FFF Nozzles

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Browse Our 3D Printers

What makes a good 3D printer?

The best 3D printers fabricate models and parts that are true to design. In other words, models and parts that are a perfect physical representation of the digital model drawn in CAD. To achieve this high degree of dimensional accuracy, printers must produce a very fine edge across the build area. This is how we perceive parts to be high quality or not when we look at them and inspect them.


Of course, multiple variables determine how fine that edge is, and you cannot always rely on the quantitative values manufacturers place on their 3D printers. If we did, every printer on the market would be pinpoint accurate.


When you are shopping for your next printer, consider this: accuracy is the value that determines how close a 3D printed part is to its digital drawing. Precision refers to the repeatability experience of a printer, or how reliable the printing experience is. If you want a consistently good 3D printing experience, you need both.

Technologies and processes

The two most common 3D printer technologies are FFF and SLA.


The most common technology is fused filament fabrication (FFF), also known as fused deposition modelling (FDM). Both technologies are in fact one in the same.


These 3D printers are the lowest cost. They melt a plastic and extrude it layer-by-layer to build up models from nothing. This process is traditionally best suited to low-cost prototyping, but advancements in technology mean this is no longer the case. There’re more variables that can affect the quality of a print with FFF than SLA, but solutions like an enclosed build chamber and heated build plate reduce this.


SLA (stereolithography) 3D printers use a laser to cure resin (liquid plastic) onto the build platform in desired areas.


Unlike with an FFF 3D printed part, parts printed by an SLA 3D printer need to be post-processed with UV light. This cures the resin, causing it to solidify and reach the mechanical properties required for the application. The method of production is cure, peel, raise, with the laser curing the resin layer by layer; the peel mechanism lifting each new layer off the surface; and the raising action allowing new resin to flow under the build platform.

Desktop and large format

3D printers are available in all shapes and sizes to suit any project, but there are two common classes: desktop, and large-format.


Desktop printers do exactly what they say on the tin - they fit on a desktop (or most workspaces) and take up around the same footprint as a large LaserJet printer. Large-format printers are four or five times bigger, enabling you to manufacture models and parts like car bumpers and snowboards in one go.


You’ll find the bigger you go, the rarer photopolymer technologies like SLA and DLP (digital light processing) become. This is because they get very expensive as you scale up. Most large-format 3D printers are of the FFF variety because the technology is cheaper and easier to produce on a large, industrial scale.