{"product_id":"vent-grille-parametric-3d-print","title":"Vent Grille — Parametric (3D Print)","description":"Parametric VENT GRILLE by MarineLab3D — for heating\/AC, fridge vents, locker air exchange and more. Print it to the exact size and look you need.\u003cbr\u003e\u003cbr\u003e🔲 Shape: rectangular (equal sides = square) or round · your dimensions\u003cbr\u003e📏 For ROUND, the Ø is the OUTER (overall) diameter — the full footprint of the grille.\u003cbr\u003e🌬️ Pattern: horizontal \/ vertical \/ diagonal lines or round holes · open area 20–70%\u003cbr\u003e↘️ Straight slots or LOUVER (angled): 20-30° max airflow · 35-45° balanced · 45-60° water\/sun · 60°+ privacy (also for holes)\u003cbr\u003e🧩 Optional round tube collar on the back (set Ø) to connect a duct\u003cbr\u003e🔩 Optional countersunk screw holes · bevelled outer edge\u003cbr\u003e\u003cbr\u003e🖨️ Print in PETG\/ASA · face down. For louver, supports may help on the angled slots.\u003cbr\u003e\u003cbr\u003eUse “Customize dimensions” to set shape, size, pattern, louver angle, open %, collar and screws, preview in 3D, then receive your STL after purchase.","brand":"MarineLab3D","offers":[{"title":"Default Title","offer_id":52551813464376,"sku":null,"price":5.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1002\/2889\/0936\/files\/vent-grille-hero.png?v=1782222264","url":"https:\/\/marinelab3d.com\/products\/vent-grille-parametric-3d-print","provider":"MarineLab3D","version":"1.0","type":"link"}