Parametric pipe fittings — couplings, reducers, elbows, tees, 3-way corners. Adjustable size, wall & fit. Binary STL export for Bambu Lab.
Size = pipe outer diameter (the 内径 number on fitting charts) — the socket slides over the pipe. Print in PETG or ASA with 4+ walls / 40%+ infill for wet use. Printed fittings suit drainage, low-pressure and furniture builds — not pressurized supply lines. Seal joints with silicone; PVC solvent cement will not bond to printed plastic.