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Founded in 2016, Capricorn began with one simple vision in mind:

"To Make the World's Best Bowden Tubes."

Following the strictest quality standards, and using only the highest quality raw materials, we produce Bowden tubing products that will take your 3D printing experience to the next level!

What Makes Our Bowden Tubing the Best?

Capricorn produces two product lines for your Bowden tubing needs. All our tubing is made from the finest pure virgin PTFE, so it always has good flexibility, abrasion resistance, chemical resistance, and melting point:

Technical Specs         Shop Now!

What They are Saying About Us

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March 2018


Midwest RepRap Fest 2018

#MRRF2018 was a blast!! There were roughly double the number of attendees of 2017! We got to see lots of awesome new products, like Slice Engineering's new hot ends, and Filablend's new 3-color filaments.

We announced our NEW 2.85mm Bowden Tubing! We built a 7 foot tall Eiffel Tower. We got to meet Tom! We had the BEST Tacos ever!!

The best part was seeing so many printers using our Bowden Tubing this year, and meeting all of the great people who love our products. Several people came up to us and said our tubing was the single best upgrade they had ever done to their printer(s)!

February 2018

In an effort to continually improve our product, we began manufacturing our XS tubing with a tighter internal diameter. Some users experienced problems with this, and we have now returned to the orginal specs. However, we would like to remind everyone that if you have a problem of any kind with your tubing, we will replace it for you.

January 2017

  • We've added numerous resellers around the world.
  • We registered to be a Gold Sponsor at #MRRF2018 this March!
  • We've added loads of new content to the site, to make your experience simpler, easier, and more fun.


December 2017

Many new types of fittings are now in stock!

October 2017

Our Bowden Tubing is now Available from Printed Solid!


October 2017

Our Bowden Tubing is now Available from e3D-Online! Featured on the top of the line Gold V6 Hotend.


August 2017

New Products! We now offer Tubing Cutters and Value Bundles in our shop.

June 2017

We are Excited to announce that our products are now in stock and ready to ship from Filastruder!

Have Questions

Check Out Our FAQ section for help with shopping, ordering, installing your tube, and troubleshooting common isssues.

Frequently Asked Questions    How To Install    Choosing Your Tubing    Selecting Your Fittings    Measuring Your Filament

Safety First!

Don't forget to read the safety precautions before using your new Bowden Tube.


Show us your prints on Facebook and Twitter with Hashtag #CapTubes