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Established in 1988

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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Ultimaker’s premium 3D printers were designed through open source collaboration. They are extremely reliable and they are enjoyed by professionals all over the world, particularly in business and school environments. We stock all of Ultimaker’s 3D printers as well as ABS and PLA filaments. Discover the range below, or give our team a call on 01765 540 115 or email us at web@goprint3d.co.uk if you require any help with your purchase.

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Ultimaker 3 AA Print Core
Ultimaker 3 AA Print Core

Ultimaker AA Print Core (0.4mm)


Ultimaker Print Cores make the most of the Ultimaker 3’s and S5’s print performance. With swappable, material-matching print cores, you can customise your nozzle geometries per each material for outstanding print accuracy and quality.

Print Cores for the Ultimaker 3 and S5 are sold in two configurations: Ultimaker Print Core AA, and Ultimaker Print Core BB. The Ultimaker Print Core AA for sale on this page comes as standard and preinstalled with the Ultimaker 3 and S5.

The difference between the two cores is simple: AA Cores are for build material, and BB cores are for support material.

Depending on the type of 3D print you are creating, you can have two Ultimaker Print Core AA’s operating simultaneously or you can have an Ultimaker Print Core AA printing with a Ultimaker Print Core BB. The cores are easy to swap out, so you can switch between different material combinations for a more time-efficient workflow.

To find out more about the Ultimaker Print Core AA, please don’t hesitate to contact our team here. You can also find out how to use Ultimaker Print Cores here


  • £95.00 EX. VAT
  • £114.00 INC. VAT
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    Founded in 2011, Netherlands-based 3D printer manufacturer Ultimaker is one of the main players in the desktop 3D printer market. Ultimaker 3D printers all utilise fused filament fabrication (FFF) technology with the company committed to being open source.

    Ultimaker started selling 3D printers in May 2011. Their first printer, the “Ultimaker”, paved the way for all other models that succeeded it. Ultimaker’s current range of desktop-class 3D printers includes the Ultimaker Original+, Ultimaker 2 Go, Ultimaker 2+ and Ultimaker 2 Extended+. The Ultimaker Original+ is a DIY kit for makers who want to hack and tweak their 3D printer. All other models in the Ultimaker range come fully preassembled, ready to be used in engineering, design and educational environments.

    Ultimaker is committed to being an open source vendor. One can download and access each printer’s documentation and source files once they become available. This has enabled Ultimaker to innovate and update their line of printers over the years, and their community has had a significant input into the new features that have found their way into Ultimaker’s new 3D printers. For example, the swappable nozzle system and geared feeder motor found in the 2016 ‘Plus’ range of 3D printers are so because of user and community feedback.