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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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3D Printing Supplies

We have a wide range of filaments available from different manufacturers, as well as some 3rd party, GoPrint3D filament. Whether you are looking for ABS, PLA, Nylon or something else, we have these available in a range of weights, diameters and brands. If you are stuck or can't find what you want, simply contact us and we'll do our best to help.

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Mark Two Fibre Bowden Tube

Onyx Pro and Mark Two Fibre Bowden Tube


If your Mark Two’s Fibre Bowden Tube is clogged or damaged, then you will have to replace it to continue 3D printing with composites.


The Fibre Bowden Tube is a crucial component of the MarkForged Mark Two. It feeds filament through to the Mark Two’s extruder, where it is then processed through to the Mark Two’s CFF nozzle and printed in continuous strands to reinforce nylon parts. The Tube has to be smooth and continuous. If there is any filament build up in the tube, or any kinks or other types of interruption, this can stop the print process in its tracks.


The product you are viewing here today is a replacement Fibre Bowden Tube assembly for the Mark Two 3D printer. It is an official and genuine Markforged part. It is a direct replacement for your existing Fibre Bowden Tube and once it is installed you will be able to get back to 3D printing strong and durable end-use parts and prototypes.


Installing the new Tube is also quick and easy – you can find out how to do that in your Mark Two user manual. Whilst you are here, it is also important to check your Nylon Bowden Tube. If this is damaged, you will also have to replace it. The good news is Bowden Tubes are inexpensive.

Manufacturer SKU

  • £70.00 EX. VAT
  • £84.00 INC. VAT
  • InStock