🌀 40 mm Flat Coil Winding Jig (STL)

This STL file contains a precise wire coil winding jig, designed for 0.95 mm wire and a final outer coil diameter of 40 mm.

Perfect for: jewelry making hobby projects technical applications experimental coils and spirals

⚙️ Technical specifications

Final outer coil diameter: 40 mm Wire diameter: 0.95 mm Coil type: flat spiral (tight winding) Winding pin diameter: ~38 mm (3D-print compensated) Mounting socket: 5 mm pin Turns: approx. 20–21 Coil height: approx. 20 mm

📏 Required wire length

Minimum: ~1.32 m Recommended: 1.40 m (including working allowance)

🖨️ 3D printing recommendations

Material: PETG (recommended) or PLA+ Layer height: 0.2 mm Infill: 40–60% Walls: min. 4 Print orientation: vertical

📦 What you get

Ready-to-print STL file Practical, workshop-tested geometry

⚠️ Digital product only – no physical item shipped