Xem Studiomeasured geometry

Library › 3D printers & filament › Hotends and nozzles ·

Capricorn XS PTFE Bowden tubing (1.75 mm filament)

What are the dimensions of the Capricorn XS PTFE tube? · Modern device · basis: Manufacturer specifications (Capricorn Automation)

Also called: capricorn xs tube dimensions, capricorn ptfe inner diameter, capricorn xs id od, 4mm od ptfe tube 1.9mm id, bowden tube 1.75 size, capricorn tubing specs, ptfe tube 2mm vs 1.9mm, capricorn xs bowden, tubo ptfe capricorn medidas, Capricorn PTFE Schlauch Innendurchmesser, tubo ptfe capricorn diâmetro

Exact dimensions. True size, with no printing tolerance added.

length
3.95 mm
width
3.95 mm
height
100 mm

Notes

  • Capricorn XS is the 1.75 mm-filament Bowden tube with a 1.90 mm bore and 3.95 mm outside, sold as a nominal 4 mm OD tube.
  • The file is a 100 mm length of tube for fitting couplers and clips; cut length is up to you.
  • Capricorn notes printer failures can happen well below the stated melting point.
  • True size, no printing tolerance added. Only published numbers are used; anything not published is said so.

Capricorn XS PTFE Bowden tubing size chart

dimensionvalue
Inner diameter1.90 ± 0.05 mm
Outer diameter3.95 ± 0.05 mm
Roundness< 0.1
Melting pointup to 340 °C
Colourdark blue, opaque
Linear expansion at 250 °C2.2–3.3 %

Where the files are

Other publishers' files are linked, not hosted. "verify" = check the license at the link before commercial use.

Capricorn AutomationTechnical SpecificationswebPublisher's page; dimensions are facts

Free files

★ Free files 1 parts. Generated by Xem Studio from the standard; threads are plain cylinders at major diameter. CC BY 4.0. index.json

capricorn-xs-ptfe-tubing-sampleTube Ø3.95 OD × Ø1.9 ID, 100 mm sample length (cut to need)STEP · STL
Let your AI pull this. Add https://xemstudio.com/mcp to Claude, ChatGPT, Cursor or any MCP client (free, no account, one minute) and it can look up exact sizes, mating fits and free STEP/STL from every chat.
Set it up →

Plain text: sheet.txt · JSON: /api/geometry?object=capricorn-xs-ptfe-tubing

Capricorn XS PTFE Bowden tubing (1.75 mm filament), isometric render of a generated part
Render of capricorn-xs-ptfe-tubing-sample from the free STEP; not to scale.

Fits with

Capricorn TL PTFE Bowden tubing, isometric render of a generated part
Capricorn TL PTFE Bowden tubing3.95×3.95×100 mm★ 1 file
MK8 nozzle (Micro Swiss, M6 × 1.0), isometric render of a generated part
MK8 nozzle (Micro Swiss, M6 × 1.0)6×6×13 mm★ sheet
E3D V6 nozzle (M6 × 1), isometric render of a generated part
E3D V6 nozzle (M6 × 1)6×6×12.5 mm★ sheet

Questions

What is the inner diameter of Capricorn XS?

1.90 ± 0.05 mm, with a 3.95 ± 0.05 mm outer diameter.

Will Capricorn XS fit a 4 mm push-fit coupler?

Its published OD is 3.95 ± 0.05 mm, which is the nominal 4 mm size those couplers take.