6-Direction Curved Cam Guide Wafer Holder (Exploded Layout)

Create a detailed 3D CAD assembly of a **6-direction curved cam guide wafer positioning holder** designed for a 4-inch silicon wafer. **1. Overall Design** - Design a circular mechanical wafer positioning fixture. - The wafer diameter is exactly 101.6 mm. - The wafer thickness is 0.525 mm. - The holder outer diameter is 150 mm. - The design must be suitable for FDM 3D printing. - This is a post-process wafer measurement positioning fixture, not a semiconductor processing chuck. - Do not modify the wafer geometry. **2. Component 1: Base Plate** - Circular base plate, 150 mm outer diameter. - Plate thickness: 8 mm. - Central circular opening: 70 mm diameter. - Include six equally spaced mounting positions at 60-degree intervals. - Provide a flat and stable wafer support structure. - Add suitable mounting holes for assembly. **3. Component 2: Curved Cam Drive Plate** - Create a separate circular cam plate, 5 mm thick. - Design six curved spiral-shaped cam slots arranged symmetrically around the center. - Each cam slot must control one corresponding radial guide. - The cam plate must be able to rotate slightly to move all six guides simultaneously. - Design smooth curved cam profiles without sharp corners. - Provide an accessible rotational input feature. **4. Component 3: Six Curved Side Guides** - Create six identical curved guide components. - Arrange them radially at 60-degree intervals around the wafer. - Each guide must have a smooth concave contact surface that follows the circular wafer edge. - Guide height: 8 mm. - Contact edge radius: R2 mm. - Radial travel range: approximately 3 mm. - Each guide must engage with the corresponding cam slot. - The six guides must move symmetrically toward or away from the wafer center. **5. Operating Principle** - When the cam plate rotates, all six curved guides move simultaneously toward the center. - When rotated in the opposite direction, all six guides move outward. - The six contact points must position the wafer concentrically. - The guides must only contact the wafer edge gently. - Do not use vacuum suction, electrostatic chucking, pneumatic clamping, or a large clamping force. **6. CAD Modeling Requirements** - Create a complete 3D assembly with all three component types. - Show the base plate, cam plate, and six curved guides as separate components. - Include an exploded assembly view. - Include a top view, front view, side view, and isometric view. - Show the wafer as a separate reference component. - Ensure there are no collisions between moving parts. - Use realistic mechanical clearances suitable for FDM 3D printing. - Make the assembly mechanically understandable and physically manufacturable. **Important:** Prioritize the actual mechanical geometry and assembly relationships over decorative details. Do not generate a simple static circular

Parameters

Every value above is a live dimension. Open a model like this in the editor and each one becomes a slider you can drag before exporting.