Direct Fill Paint Cap

Direct Fill Paint Cap – for Precise Relief ColoringThis is a custom-designed cap for standard paint tubes, featuring a small nozzle that allows you to apply paint directly into engraved or embossed (relief) areas on 3D prints, wood, or other surfaces.It’s perfect for precise coloring without the need for brushes or extra tools – just squeeze gently and fill!✅ Features:Fits most standard paint tubes (see below for thread info)Narrow tip for controlled applicationIdeal for coloring 3D printed reliefs, signs, or fine detailsEasy to print – no supports neededFusion 360 source file included for customizationThe default version uses a M15 × 1.5 thread, which fits many common paint tubes.You can adjust this in the Fusion 360 file if needed. You can modify:Thread size – to fit different paint tube brands (Located in the Thread feature – edit this parameter to customize.)Nozzle diameter – for thicker or thinner paint flow (parameter hole_diameter)If you create a version with a different thread