Parametric Screw Cap (Bottle Caps Generator)

Never throw away a lost-cap bottle again! This MakerLab generator lets you create custom, perfectly fitting screw caps for almost any standard plastic or glass bottle.I designed this specifically to be 3D-printable without supports. It features a custom trapezoidal thread profile that handles FDM overhangs easily, and an optional built-in inner sealing ring to keep your liquids secure.Key Features:Quick Presets: Instantly generate caps for modern soda/water bottles (PCO 1881), older thick-neck bottles (PCO 1810), or standard 28mm glass bottles.Fully Custom Mode: Have a weird bottle? Switch to "Custom" and dial in your own inner diameter, height, thread pitch, and thread turns.Built-in Seal: Toggle the inner "olive" sealing ring on or off to ensure a watertight fit.Customizable Grip: Change the number of outer ridges or the thickness of the cap walls for better leverage.Important Note on Food Safety: 3D printed parts have microscopic layer lines that can harbor bacteria.