Garden Hose Coupler/Union/Splicer - Hose Repair
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Informacje o modelu
- Źródło
- Printables
- Kategoria
- Mechanical Parts
- Licencja
- Creative Commons — Public Domain
I don't know how this will hold up over the long term, but I thought it was worth trying. As I write this, it is March 26, 2026; I hope to provide an update in a year or so as to how this worked out (or sooner if it breaks!).
I have a garden hose which bent and cracked, so it was both restricting flow and leaking at the same time. With this "splicing kit" in hand, I cut the damaged section out of the hose and re-joined the two ends.
The dimensions of the hose in question:
OD = 3/4" (19mm)
ID = 14.65mm
Additional parts required (see photos) : #8 x 3/4" pan head screws, qty. 4
The parts can likely be scaled to fit other hose sizes, but I have not tried this.
Assembly and Use
Remove the support material from the Coupler (see Print Instructions below). I recommend marking the "middle rib" on the Coupler with a felt tip marker as a guide to insertion length. Insert the Coupler into one end of the cut hose to 1/2 of the Coupler length - heating up the hose with a hot air gun or hot water will soften the hose and make the insertion easier.
Position the Clamp pieces over the end of the hose (see photos), and fasten the clamp with two screws. Alternate back and forth between the two screws as you tighten them so as to exert even pressure on the Clamp.
Repeat the Coupler insertion and Clamp attachment for the other end of the hose.
Print Instructions
Print in PETG using the 3mf files provided, otherwise :
0.2mm layer height
5 perimeters
30% rectilinear infill
I recommend PETG or similar "high temperature" filament as the best choice for outdoor use and summer heat.
The Coupler piece needs to be printed side down for optimal strength, and this requires printing supports, and also creates bed adhesion issues. I initially tried using slicer generated supports, but this failed, so I ended up creating a custom support structure in CAD. This worked, although the support structure takes an annoying long time to remove (I used a pair of side cutters for support removal - see photos).
The Coupler and support structure are of course printed together as one "piece," and an STL file is provided for this purpose. However, I have also proved separate STL files for both the Coupler and support structure for anyone who would like to experiment further.
CAD
The OnShape 3D CAD files for this are here :