Drain Screen V1

implemented unverified

Vertical Farm Pack VF-8: the Drain Screen Basket — a drop-in strainer that seats in the collector sump over the vertical drain and catches coarse coco chips and root fragments before the water reaches the reservoir/pump. Lift out, rinse, drop back — tool-free (rim finger notches). A fine mesh floor is the filter; wide vertical wall slots are the fail-safe side-flow so a silted bottom drains sideways and, when clogged, water rises visibly in the OPEN collector tray instead of backing up. The basket's flange nests in the collector's sump ledge so water reaches the drain only through the mesh (no bypass). Honest: this gives DEBRIS-REDUCED water, not clean water — fine coco dust may pass, and the exact mesh size vs clog rate is a grow-test.

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_drain_screen
archetype: drain_screen_v1@1

params:
  screen_l: 24mm
  screen_w: 13mm
  screen_h: 20mm
  mesh_cell: 2mm

Parameters

parameter	type	default	range	role
`screen_l`basket footprint along X (the wide dimension); the outer is ~+6mm and must match the collector's funnel-well mouth	`length`	`24mm`	`18mm … 90mm`	functional	exposed
`screen_w`basket footprint along Y — must overhang the collector drain bore so water passes only through the mesh/slots (fits the shallow sump)	`length`	`13mm`	`10mm … 24mm`	functional	exposed
`screen_h`basket height — seats on the sump-well floor with the rim ABOVE the tray overflow so a clog spills the open tray (zero bypass)	`length`	`20mm`	`14mm … 30mm`	structural	exposed
`screen_wall`basket wall — named distinctly so the row's shared structural `wall` (thick rail/collector walls) does NOT thicken this small cup	`length`	`1.6mm`	`1.2mm … 3mm`	structural
`floor_t`	`length`	`1.6mm`	`1.2mm … 3mm`	structural
`corner_r`	`length`	`2mm`	`1mm … 4mm`	aesthetic
`mesh_cell`fine mesh opening — catches coco chips and root fragments; coarse enough to tessellate manifold. Fine dust may pass (grow-test)	`length`	`2mm`	`1.5mm … 3mm`	functional	exposed
`mesh_rib`	`length`	`1.3mm`	`1.2mm … 2mm`	manufacturing
`mesh_margin`solid rim inside the walls before the mesh starts	`length`	`2mm`	`1.5mm … 6mm`	structural
`slot_w`wide wall drainage slot — fail-safe side-flow, not a fine filter; keeps a silted basket draining	`length`	`7mm`	`4mm … 12mm`	functional
`slot_h`	`length`	`7mm`	`4mm … 12mm`	functional
`notch_w`rim finger notch width for tool-free lift-out	`length`	`16mm`	`16mm … 24mm`	functional
`notch_d`	`length`	`6mm`	`6mm … 12mm`	functional

Regions

mesh_canvas substrate support mesh
floor aesthetic lightening
cup mounting surface

Contract

Guarantees

must-have features and invariants — verified on every build

debris_screen
tool_free_removal
mesh_cell >= 1.5 and mesh_cell <= 3.0
screen_h >= 10.0

Will refuse

explicit prohibitions — the engine refuses to build these

hidden_wet_cavity

Not claimed

what passing validation does not mean

Provided “as is” under Apache-2.0 — no warranty of fitness for a particular purpose.

Built from operations

substrate_tray_body lift_tabs screen_wall_slots

Subscribed validators (8)

form.shell_walls_ok form.min_ligament_ok form.lift_access_ok form.screen_open_area_ratio_ok form.screen_debris_capacity_ok topology.cutout_present topology.single_connected_solid topology.hex_field_present

Source: packs/artifact-forge-vf/data/archetypes/drain_screen_v1.yaml · forge @ 370e624 · pack: artifact-forge-vf