Barbed Hose Adapter

implemented unverified

A printable step-down adapter with barbed spigots and a stop flange — the everyday repair part: measure two hoses, declare two diameters, print.

Measurement-driven generic spare: a two-step barbed hose adapter. Spigot Ø = barb crest = the nominal hose bore you measured; a hose pushes on from each tip and bites against the sawtooth. The mid flange stops both hoses. For LOW-RISK household/workshop lines only — not pressure-rated, not potable-water certified (docs/CLAIMS.md).

Why it matters: Shows how the showcase pack turns a one-off repair into a declared, validated product family — vacuum, drain and garden presets ship with it.

Built from a real example — orbit to inspect.

Declaration example

A minimal product declaration for this archetype — exposed parameters at their defaults. Validate and build it with forge validate / forge build.

schema: product/v1
id: my_hose_adapter
archetype: hose_adapter_v1@1

params:
  spigot_d_a: 32mm
  spigot_d_b: 35mm

Parameters

parameter	type	default	range	role
`spigot_d_a`barb crest Ø of side A — the measured hose bore	`length`	`32mm`	`10mm … 60mm`	functional	exposed
`spigot_d_b`barb crest Ø of side B	`length`	`35mm`	`10mm … 60mm`	functional	exposed
`spigot_len_a`	`length`	`30mm`	`18mm … 60mm`	functional
`spigot_len_b`	`length`	`30mm`	`18mm … 60mm`	functional
`wall`	`length`	`2.4mm`	`1.8mm … 5mm`	manufacturing
`barb_h`per-side barb height over the root	`length`	`0.8mm`	`0.4mm … 1.5mm`	functional
`barb_count_a`	`count`	`3`	`2 … 6`	functional
`barb_count_b`	`count`	`3`	`2 … 6`	functional
`flange_t`	`length`	`4mm`	`3mm … 8mm`	functional
`flange_lip`flange radius past the larger crest	`length`	`2.5mm`	`1.5mm … 6mm`	functional

Regions

body_flange mounting surface

Contract

Guarantees

must-have features and invariants — verified on every build

hose_barb_spigots
adapter_stop_flange
spigot_d_a > 2 * wall + 2 * barb_h + 4

Will refuse

explicit prohibitions — the engine refuses to build these

none declared

Not claimed

what passing validation does not mean

safety certified
medical
food safe
electrical certified
pressure rated
Provided “as is” under Apache-2.0 — no warranty of fitness for a particular purpose.

Built from operations

hose_adapter_body

Subscribed validators (3)

form.barb_retention_ok form.revolve_profile_clear_of_axis topology.single_connected_solid

Source: packs/official/artifact-forge-showcase/src/artifact_forge_showcase/data/archetypes/repair/hose_adapter_v1.yaml · forge @ 370e624 · pack: artifact-forge-showcase