Caps as objects to be 3D printed These are physical covers or lids for containers, bottles, jars, or other objects. Example: A replacement cap for a bottle, a custom lid for a jar, or a protective cover for electronics. Caps as fashion accessories Sometimes people design 3D-printed hats or caps (like baseball caps) using flexible materials. This is less common, since traditional fabrics are more comfortable, but small-scale or decorative parts of caps can be 3D-printed. 3D printer “caps” in the machine itself Could refer to small components or end pieces in a 3D printer, like filament spool caps or protective covers for parts.
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