Printable tri-clamp (45°): reducing tees, ¾ to 4 in run — dimension sheet Source: Xem Studio, https://xemstudio.com/objects/printable-tri-clamp-reducing-tees/ (CC BY 4.0) Basis: Xem Studio design: S7RMP layout per run × branch, 45° rims Catalog version: 2026-10-20 Sizes: see table below - Same layout as the standard reducing tees. - 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. size_in run_mm branch_c_to_f_mm ¾ × ½ 127.0 63.5 1 × ½ 133.3 66.7 1 × ¾ 133.3 66.7 1½ × ½ 146.0 73.0 1½ × 1 146.0 73.0 2 × ½ 171.4 79.4 2 × ¾ 171.4 79.4 2 × 1 171.4 79.4 2 × 1½ 171.4 79.4 2½ × 1½ 184.1 85.7 2½ × 2 184.1 85.7 3 × 1½ 196.8 92.1 3 × 2 196.8 92.1 3 × 2½ 196.8 92.1 4 × 1½ 241.3 104.8 4 × 2 241.3 111.1 4 × 3 241.3 111.1 Files elsewhere (not hosted by Xem Studio; license as stated by the publisher): - Steel & O'Brien: S7RMP reducing tee, clamp ends: A, B, C per run × branch — web — publisher's table; dimensions cited — https://www.steelobrien.com/products/bpe-fittings/bpe-clamp-fittings/bpe-tees-crosses/s7rmp-reducing-tee-clamp-ends - Rubber Fab: Tri-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) — PDF — maker chart; dimensions are facts [verify license at link] — https://shop.andersonprocess.com/media/assets/product/documents/rubber-fab-tri-clamp-dimensions.pdf Free files (CC BY 4.0, Xem Studio; STEP + STL, 17 parts): https://xemstudio.com/files/hardware/printable-tri-clamp-reducing-tees/index.json API: https://xemstudio.com/api/geometry?object=printable-tri-clamp-reducing-tees