Library › Hardware › Printable tri-clamp ·

Snap tri-clamp, bolt-free (printable, ½ to 4 in)

Name: Snap tri-clamp, bolt-free (printable, ½ to 4 in) dimension sheet
Creator: Xem Studio
License: https://creativecommons.org/licenses/by/4.0/

Is there a tri-clamp clamp that snaps shut without a bolt? · Hardware · basis: Xem Studio design (v7), tested on a 2 in printed joint

Also called: bolt free tri clamp, snap tri clamp, 3d printed tri clamp clamp, tool-less tri clamp

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

sizes: 6 in table

Notes

A two-piece tri-clamp clamp with no bolt: each half carries a flush arm whose hooked claw drops into a notch on the other half only when the halves meet — clipped or not, nothing in between. Open with a butter knife in the V at the arm tip.
Prints flat with no supports: every downward face is 45° or steeper, both outer edges carry the same R7 round.
Sized for the printable 45° tri-clamp ferrules and a standard silicone gasket (closes on a 2.0 mm compressed stack). One clamp per flange: ½ and ¾ in share the 25 mm flange, 1 and 1½ in the 50.5 mm flange.
The STEP/STL pack (all six sizes) is $0.25; AI agents pay with x402 (USDC) at /api/buy/snap-tri-clamp-pack. The dimension sheet here is free.

Snap tri-clamp, bolt-free size chart

size	clamp OD	width	print footprint (one half)
½–¾ in (25 mm flange)	43.0 mm	16.0 mm	42.3 × 26.4 mm
1–1½ in (50.5 mm flange)	68.5 mm	22.5 mm	67.5 × 42.3 mm
2 in (64 mm flange)	82.0 mm	23.3 mm	80.8 × 50.7 mm
2½ in (77.5 mm flange)	95.5 mm	24.1 mm	94.1 × 59.1 mm
3 in (91 mm flange)	109.0 mm	24.9 mm	107.4 × 67.5 mm
4 in (119 mm flange)	137.0 mm	27.5 mm	135.0 × 84.9 mm

Where the files are

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

Xem Studio

Snap tri-clamp design

web

Publisher's page; dimensions are facts

Files

Files $0.25 zip: STEP + STL per size, 6 parts, 1697 KB.

AI agents buy with x402 (USDC, no account): https://xemstudio.com/api/buy/snap-tri-clamp-pack answers 402 with the price; pay and retry. Checkout for people is coming. The dimension sheet above is free.

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=snap-tri-clamp-bolt-free

Schematic, not to scale.

Fits with

Free

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 Free

Printable tri-clamp (45°): ferrules, spools and caps, ½ to 4 in, isometric render of a generated part

Printable tri-clamp (45°): ferrules, spools and caps, ½ to 4 in8 sizes★ 46 files Free

Tri-clamp gasket, ISO 2852 Type B: 1.5 and 2 in, isometric render of a generated part

Tri-clamp gasket, ISO 2852 Type B: 1.5 and 2 in2 sizes★ 2 files

Questions

How do you open it?

Slide a butter knife into the V at an arm tip and lever the tip outward.

Does it need supports?

No — it prints flat; every downward face is 45° or steeper.