"Open-S" Cable Winder | Interlocking Snap-Fit Case
Tired of messy charging cables cluttering up your desk or backpack? This Parametric "Open-S" Cable Winder is a sleek, highly functional everyday carry (EDC) solution designed to organize your wires in seconds.

Featuring a unique, wide-clearance internal S-curve spool, this design allows your charger cable to drop straight into the core channels without any tight bends or pinching. Once assembled, the double-sided finger holes let you manually spin the inner spool effortlessly to retract your cable from both ends simultaneously.

🚀 Key Design Features
100% Support-Free: Engineered from the ground up to print completely flat on your bed. No wasted filament, no tedious support cleanup!
Satisfying Snap-Fit Joint: The upper and lower housing halves feature an interlocking perimeter lip and groove that snaps together tightly using built-in plastic friction—no screws or glue required.
Zero-Pinch Entry Slots: The mating snap-lips intentionally break at the entry points, leaving wide, clean, uninhibited tracks for your cable to slide through.
Dual-Sided Control: Large ergonomic cutouts on the top and bottom keep the spool safely trapped inside while giving your fingers full access to wind or unwind the cord.
🛠️ Recommended Print Settings
To get the perfect mechanical fit right off your print bed, use these optimized slice settings:

Layer Height: 0.2mm (or 0.16mm for an even smoother snap-joint)
Infill: 15% to 20% (Gyroid or Grid recommended)
Wall Loops / Perimeters: 3 walls (ensures the snap-fit ridge is robust and flexing handles pressure well)
Supports: NONE * Material: PLA or PETG works beautifully.