baseball cap 3d model

Total Height: 31.0 mm Maximum Outer Diameter (base): 12.5 mm Approximate Circumference: 39.3 mm Recommended Maximum Hat Width: 11.0–11.5 mm Recommended Body Depth (front-to-back): 8.0–9.0 mm Recommended Shoulder Width: 9.5–10.0 mm THREAD / INTERNAL CAVITY Valve Standard: Presta (French) Internal Nominal Diameter: 6.0 mm Internal Thread Pitch: 0.70 mm Internal Thread Length: 5.0 mm minimum Internal Thread Depth: 5.5 mm minimum Recommended Lead Chamfer: 0.5 mm Recommended Thread Clearance: +0.15 mm for FDM printing BASE GEOMETRY Base Shape: Cylindrical knurled grip Base Outer Diameter: 12.5 mm Base Height Recommendation: 7.0–8.0 mm Knurl Depth Recommendation: 0.5–0.7 mm Knurl Count Recommendation: 18–24 vertical ribs MODEL STRUCTURE Single watertight manifold mesh All geometry fused into one solid object No separate components No floating facial features No detachable hat or arms Optimized for FDM 3D printing Watertight manifold mesh Single connected shell