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We are the 3D printing arm of a larger company called Express Group Ltd. Fixing printers since 1988, today we are a Specialist Parts Distributor and Experts in 3D Printing.

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Markforged makes industry-leading 3D printers for applications in engineering, manufacturing, product design and functional prototyping. Print metal, carbon fibre, high-temp fibreglass, fibreglass, Kevlar and more. Print parts, tools, and fixtures stronger than metal, or even in metal. The possibilities are endless, and the 3D printers are tried, tested and proven in industry. Quality is the Markforged difference. This is a brand you can rely on to deliver consistency every time.

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Impeller printed in 17-4 Stainless Steel
Sprocket printed in 17-4 Stainless Steel
Reel of 17-4 PH Stainless Steel

17-4 PH Stainless Steel Material 200cm³


The stainless steel on offer here is 17-4 PH stainless steel. This is a precipitation hardened steel alloy with 15-17% copper and 3-5% nickel. 


These additions turn the steel into a very versatile material with high strength, high hardness and excellent corrosion resistance. 17-4 PH stainless steel is widely used in the aerospace, petroleum, manufacturing, medical and shipping industries.


After being heat treated, parts printed in this material have an ultimate tensile strength of 1250 MPa. For further technical data, please see the 17-4 PH Technical Data Sheet available to download.


If you have any questions about metal 3D printing, please get in touch with our team on 01765 694007 or email web@goprint3d.co.uk and we will be happy to discuss with you.

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    Many 3D printers lay claim to being ‘industrial-grade’ but when you delve into their material list, rarely do you find anything more durable than nylon.

    That’s where Markforged 3D printers differ. In the case of the Desktop and Industrial series 3D printers, these use nylon or Onyx as the base material (Onyx is a proprietary filament made by Markforged, it’s part nylon, part chopped carbon fibre). You can then reinforce prints with continuous strands of a stronger composite - carbon fibre, fibreglass, or Kevlar - to create truly industrial-grade prototypes and end-use parts.

    For example, parts printed in carbon fibre are stronger than 6061-T6 aluminium. The Desktop series includes the Mark Two, Onyx One and Onyx Pro, and the Industrial series the X7, X5, and X3. There’s a printer for every application.

    Then there’s the Metal X, Markforged’s greatest machine yet. This 3D printer utilises a process called ADAM (Atomic Diffusion Additive Manufacturing) to print parts in powdered metal surrounded by a plastic support. The parts are then sintered in a furnace externally to become solid. This enables you to manufacture metal parts with geometries and details that would be impossible with subtractive manufacturing processes.