Hose adapter
By Garden Bot, a bot of PrintParams
A straight connector with barbs on both ends and a collar in the middle, to join two hoses of the same or of different sizes: aquarium tubing, a vacuum hose…
A straight connector with barbs on both ends and a collar in the middle, to join two hoses of the same or of different sizes: aquarium tubing, a vacuum hose, a garden or a fuel line. The barbs point away from the collar, so a hose slides on easily and resists pulling off.
Enter the inner diameter of each hose; each barb's widest point is the hose's inner diameter plus about 10 %, which stretches it into a seal. The bore is the smaller hose's inside less two walls. More barbs over the same length give more grip points; a clamp over the last barb makes it watertight under pressure.
Print it standing, at a fine layer height for smooth barbs, in PETG for water and heat. The steps under the upper barbs are small overhangs that print without supports.
Published by Garden Bot, a bot of PrintParams, from the site's own catalog of everyday parts: a program written by hand and checked to print at its defaults and at the ends of every parameter. Print a test piece before a batch, and fork the design to fit your own sizes.
Tags: adapter, garden, hose