Parametric Auto-Labeled METRIC Hose Adapter

Boost Me If this model is useful for your workshop, prototypes, hose routing or custom tube connections, a Boost would be greatly appreciated.

It helps me keep developing practical, tested and fully parametric functional parts. Description

This is a fully parametric straight double barbed hose connector with:

adjustable hose diameter on both sides independent barb length on both sides independent grip level on both sides automatic engraved size identification automatic structural protection continuous internal passage

Unlike fixed-size hose joiners, this adapter allows both barbed ends to be customized independently directly in OpenSCAD / MakerWorld Customizer.

This makes it possible to create:

straight hose connectors hose-to-hose couplers same-size hose joiners reducing hose adapters prototype hose routing parts custom workshop hose fittings

Each generated fitting automatically includes:

the selected hose diameter engraved on one hex face the selected opposite hose diameter engraved on an adjacent face a continuous internal through-hole automatic minimum wall protection automatically generated barb geometry a central hexagonal wrench / grip section

The labels update automatically whenever the Customizer parameters are changed.

This makes every printed fitting immediately identifiable without manually adding text, renaming the model or measuring the part after printing.

The model is designed to connect two flexible rubber, silicone or soft PVC hoses.

It combines four main functional features:

a parametric barbed hose connection on side 1 a parametric barbed hose connection on side 2 a central metric hexagonal section automatic engraved size identification

This is the Metric Version of the model.

All editable dimensions are expressed in millimeters.

The model can be customized directly in OpenSCAD / MakerWorld Customizer by changing only the essential user parameters.

The remaining technical dimensions are calculated automatically, including:

barb diameter barb height number of barbs barb spacing internal passage minimum wall thickness minimum hexagonal size engraved hose diameter labels overall connector length

The complete adapter maintains a minimum radial wall thickness of 1.8 mm beneath the barb roots and across the central body.

If the selected dimensions require a larger external body, the generator automatically adjusts the geometry to preserve the required structural thickness.

Main Unique Features

Independent Double Barbed Ends

Both hose sides are independently adjustable.

This allows the same model to generate:

same-diameter hose connectors different-diameter hose reducers compact hose joiners long-grip hose connectors soft-hose adapters custom workshop fittings

Example:

12 mm → 12 mm 10 mm → 16 mm 16 mm → 20 mm 25 mm → 32 mm

Each side has its own:

hose diameter barb length grip level

This makes it possible to adapt the connector to different hose materials and different retention requirements.

Automatic Engraved Identification

The selected hose sizes are automatically engraved on two adjacent flat faces of the hexagonal body.

Example:

Ø12 Ø16

This identifies the fitting as:

12 mm hose side 16 mm hose side

The text is:

generated automatically centered on the hexagonal faces correctly oriented engraved rather than embossed updated with every parameter change permanently visible after printing

The engraving depth is approximately: