Continuous Mandrel for Double-Walled Tube Roll Forming

// Continuous Mandrel Design for Double-Walled Tube Roll Forming // Final Tube OD: 4.76 mm, Inner Diameter: 3.36 mm $fn = 100; // High precision for smooth cylindrical surfaces module continuous_mandrel() { // 1. Slim support shaft (2.8 mm diameter, 60 mm length) to pass through early forming stations color("Gray") cylinder(h = 60, r1 = 1.4, r2 = 1.4); // 2. Main working/sizing mandrel section (3.32 mm diameter, 25 mm length) translate([0, 0, 60]) color("Silver") cylinder(h = 25, r1 = 1.66, r2 = 1.66); // 3. Olive-shaped tapered lead-in tip for smooth sheet entry (5 mm length) translate([0, 0, 85]) color("Silver") cylinder(h = 5, r1 = 1.66, r2 = 1.0); } continuous_mandrel();

Parameters

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