Sewing Machine Thread Spool Pin (No Supports)

A simple, clean thread spool pin designed to fit over the bobbin winder pin on many sewing machines. Originally modeled for a Brother machine, but should fit any pin ≤6.4mm diameter. The Brother pin measures ~6.1–6.2mm and uses a spring, giving this a snug, secure fit. Unlike many designs, this prints cleanly with no supports.Design NotesTwo-piece design:Vertical rodSpool support disc (press-fit onto rod)Friction fit is typically sufficient, but glue can be used depending on printer tolerancesOptimized for easy, reliable printingVersions IncludedStandard (vertical rod)Includes brim on the rod in the print profile for stabilityAdequate strength for typical useSide-printed rod versionLayer lines run along the rod → increased strengthIncludes flat cut for stable printingPrint SettingsLayer height: 0.20 mmSupports: NoneMaterials: PLA, PLA+, or PETGBrim:Recommended for upright rod (included in profile)Optional for side-printed versionPrint OrientationRod:Vertical (standard version) orHorizo