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Printable tri-clamp (45°): carbonation stone caps: 1½ in, 4 to 16 in down tube

How do I mount a carbonation stone on a tri-clamp (3D printable)? · Hardware · basis: Xem Studio design: the standard 1½ in solid cap, a ¼ in hose barb outside, a Ø6.35 down tube and a socket for a ½ in (Ø12.7) diffusion stone; printable 45° back cone

Also called: tri clamp carb stone printable, carbonation stone tri clamp printable, 3d printed tri clamp, 3d printable tri clamp, tri clamp stl, printable tri clover

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

sizes
4 in table

Notes

  • 3D-printable tri-clamp: this is Xem Studio's print-friendly version of the standard sanitary fitting, drawn so it prints on an ordinary FDM or resin printer with no supports. Download the STL to print it, or the STEP to edit it. The files are true size (no printing allowance): add your own clearance in the slicer or CAD if your printer needs it.
  • Gas in through the barb, out through the stone at the bottom: carbonating or oxygenating wort in the vessel.
  • Left out because they are taller than a 256 mm printer: carb-stone-cap-1.5in-12in, carb-stone-cap-1.5in-16in (the standard page has them).
  • Printable tri-clamp: the ISO 2852 face and gasket groove are exactly standard, only the back cone behind each rim is 45° instead of 20°, so no rim overhangs more than 45° from vertical in any print orientation. Join these with the 45° clamps (printable-tri-clamp-clamps) and standard Type B gaskets; a 45° clamp fits only 45° rims, so keep a run all 45°. A 45° cone turns clamp force into face force at 1 : 1 (a 20° cone at 2.7 : 1), so tighten the clamp bolts harder or use M6.
  • Print orientation: straight parts face down; elbows, tees and crosses with one face down; horizontal bores bridge their top, so keep them small or add a light tree support inside.
  • Every clamp face is the ISO 2852 profile used across this site: 2.85 mm rim, flat face with the gasket groove (K 1.6 deep, R3 1.2 bottom, 23° walls, P2 0.8 edges) on C2, 20° back cone. Flange C3 / groove C2 / tube OD × wall, mm: ½–¾ in 25.0 / 20.4 (derived) / 12.7–19.05 × 1.65; 1–1½ in 50.5 / 43.5 / 25.4–38.1 × 1.65; 2 in 64.0 / 56.5 / 50.8 × 1.65; 2½ in 77.5 / 70.5 / 63.5 × 1.65; 3 in 91.0 / 83.5 / 76.2 × 1.65; 4 in 119.0 / 110.0 / 101.6 × 2.11; 6 in 166.9 (6.570 in) / 156.5 / 152.4 × 2.77; 8 in 217.7 (8.570 in) / 207.0 / 203.2 × 2.77; 10 in 268.5 / 261.0 / 254.0 × 3.40; 12 in 319.3 / 311.8 / 304.8 × 3.40.

Printable tri-clamp (45°): carbonation stone caps: 1½ in, 4 to 16 in… size chart

tube (in)tube (mm)stone
4101.6½ in × 2 in stone
6152.4½ in × 2 in stone
12304.8½ in × 2 in stone
16406.4½ in × 2 in stone

Where the files are

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

GW KentTri-clamp fittings guide: tube OD, flange OD and ID per size to 12 in; solid cap thicknesswebpublisher's guide; dimensions cited
Rubber FabTri-Clamp gasket dimensional chart: gasket ID, OD and bead diameter per size (2 in bead 2.22 in / 56.50 mm, 1.5 in 1.71 / 43.50, 3 in 3.29 / 83.50)PDFmaker chart; dimensions are facts verify

Free files

★ Free files 2 parts. Generated by Xem Studio from the standard; threads are plain cylinders at major diameter. CC BY 4.0. index.json

carb-stone-cap-1.5in-4in-451½ in cap: ¼ in barb outside, Ø6.35 tube 4 in down to a Ø12.7 × 15 socket for a ½ in diffusion stone — printable, 45° rimsSTEP · STL
carb-stone-cap-1.5in-6in-451½ in cap: ¼ in barb outside, Ø6.35 tube 6 in down to a Ø12.7 × 15 socket for a ½ in diffusion stone — printable, 45° rimsSTEP · 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.
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Plain text: sheet.txt · JSON: /api/geometry?object=printable-tri-clamp-carb-stone-caps

Printable tri-clamp (45°): carbonation stone caps: 1½ in, 4 to 16 in down tube, isometric render of a generated part
Render of carb-stone-cap-1.5in-6in-45 from the free STEP; not to scale.

Fits with

Tri-clamp carbonation stone caps: 1½ in, 4 to 16 in down tube, isometric render of a generated part
Tri-clamp carbonation stone caps: 1½ in, 4 to 16 in down tube4 sizes★ 4 files
Tri-clamp dip-tube caps: 1½ and 2 in, ⅜ in tube 6 to 24 in long, isometric render of a generated part
Tri-clamp dip-tube caps: 1½ and 2 in, ⅜ in tube 6 to 24 in long10 sizes★ 10 files
Tri-clamp vessels with a dished or round welded bottom: 4, 6 and 8 in, 12 to 24 in deep, isometric render of a generated part
Tri-clamp vessels with a dished or round welded bottom: 4, 6 and 8 in, 12 to 24 in deep3 sizes★ 18 files
Printable tri-clamp (45°): two-bolt clamps, ½ to 8 in, isometric render of a generated part
Printable tri-clamp (45°): two-bolt clamps, ½ to 8 in8 sizes★ 8 files

Questions

Can I 3D print this?

Yes. It is the 3D-printable version: every overhang is 45° or steeper, so it prints without supports, and the sealing face is standard ISO 2852, so a normal gasket and clamp fit.

Which length?

Long enough to put the stone near the bottom: 16 in for a 6 × 18 in vessel.