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Description
Hoses slipping off a plain tube is a guaranteed flood. This 4-way manifold uses aggressive, precisely sized barbs to bite into soft tubing, routing one 8mm inlet into four 5mm outlets.
Print it base-down. The horizontal barbs are short enough to bridge without supports if your part cooling is dialled in.
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A compact, print-in-place water manifold built for automated plant irrigation systems. It splits a single main feed into four independent channels with smooth internal transitions to minimize flow restriction. Inlet: Single center-mounted fitting sized for 8mm ID hose. Outlets: Four equally-spaced fittings sized for 5mm ID hose. Barbs: Dual retaining ridges on all connections to prevent slip-offs under pressure. Internal Channels: Fully hollowed 7mm common chamber with spherical transitions to eliminate dead zones and sharp fluid corners.
An adapter coupling designed to step straight from a 3/4" BSP threaded fixture to a heavy hose. The hex nut transition is chamfered for support-free printing when oriented barb-down on the build plate. Dimensions & Fit Thread: 3/4" BSP (26.4mm OD, 14 TPI) Barb: 21.2mm maximum outer diameter (5-stage reversed taper) Bore: Steps from 20mm at the threaded end down to 14mm at the barb to maximize flow rate. Wrench Flats: ~31mm flat-to-flat Printing: Print barb-side down; no supports required.
This is a low-profile, continuous-loop irrigation ring designed for automated watering systems. It distributes water evenly around the base of a plant without interfering with the stem. The structure is engineered specifically for FDM printing without supports. The internal hollow channel features a teardrop cross-section so the printer can bridge the ceiling cleanly, and the external hose barb includes a small, built-in support block connecting it to the build plate. Design Notes Dimensions: 197 mm outer diameter, 173 mm inner diameter, leaving a 12 mm wide profile. Inlet: Dual-barb fitting sized for 5 mm internal diameter tubing, pointing outward to keep the hose clear of the foliage. Distribution: 12 downward-facing 1 mm drip holes spaced every 30 degrees, beginning 15 degrees offset from the inlet to ensure the first drops don't pool at the connection. Mounting: Three low-profile tabs sit on the outer perimeter, drilled for standard wire pegs to anchor the ring into the soil.
A parametric, FDM-printable ventilation duct adapter connecting a nominal Ø100 mm round duct to a 200 × 60 mm rectangular duct. Round Inlet: Ø101 mm internal diameter, 30 mm deep Rectangular Outlet: 201 × 61 mm internal, 30 mm deep Offset: 25 mm vertical centerline shift Wall Thickness: 2.4 mm (constant, pushed outward) Total Length: 210 mm (150 mm transition) Both ends are female sockets designed for a slip fit over existing plastic ducting. The loft provides a smooth internal airflow path with no steps or constrictions.
A precision-cut female adapter engineered to mate with non-standard 1.750" (44.45 mm) hot tub and spa jet threads. Bypassing the conventional 1.5" nominal standards, this design is bored out with exact clearances tailored for ASA shrinkage and layer lines. Dimensions Female Thread: 44.45 mm base major diameter + 0.3 mm radial clearance (45.05 mm total cut). Pitch: 12 TPI (2.116 mm). Interface: Standard 1.5" flexible hose barb (38.1 mm core, 42 mm ridges). Wrench Drive: Heavy 64 mm hex. Print Notes Oriented flat on the hex base. No supports required. Designed with 0.3mm added radial clearance, making it ideal for dimensionally accurate ASA prints without post-processing.
A robust, high-flow duct adapter designed to transition a standard 125 mm round bathroom exhaust duct into a low-profile 220 × 90 mm rectangular flat channel. The design features a pronounced vertical offset to navigate tight ceiling or wall spaces without compromising airflow. What it's for This part connects two dissimilar ducting systems. It is strictly female-to-female, intended to slip over an existing 125 mm round male pipe on one end and accept a 220 × 90 mm flat duct on the other. The 72.5 mm vertical offset is specifically tailored to align the flat duct closely to a wall or ceiling plane while maintaining the round pipe's original centerline. Dimensions Round Socket: 126.5 mm inner diameter, 30 mm deep (includes a 1.5 mm entry chamfer for easier fitting). Flat Socket: 222 × 92 mm internal dimensions with 5 mm corner radii, 30 mm deep. Overall Dimensions: 220 mm total length, maintaining a continuous 2.4 mm wall thickness. Offset: Centerline shifts vertically by exactly 72.5 mm over a smooth 160 mm internal transition. Print notes Print this model standing upright on the round flat face. No supports should be necessary for the interior loft, as the transition angle is steady and fully convex. PETG or ABS is highly recommended over PLA for HVAC applications, as the exhaust air and environmental moisture can deform standard PLA over time. Ensure your slicing profile is set to completely fill the 2.4 mm walls (usually 3 perimeters depending on nozzle size) to keep the assembly watertight and structurally sound.