Rotor Disc with Four Crescent Pockets

Create a parametric circular rotor disc for an experimental rotary-engine geometry study. Units: millimeters. Rotor: - outside diameter: 304.8 mm - thickness: 50.8 mm - centered at origin - rotational axis: Z axis - central shaft bore: 30 mm diameter - flat parallel front and rear faces Create FOUR identical crescent-shaped recessed working pockets equally spaced around the rotor at 0°, 90°, 180°, and 270°. Each pocket occupies less than one 90-degree sector. Initial working radial region: - inner radius: 100 mm - outer radius: 135 mm Use smooth curved boundaries and generous internal fillets. No sharp internal corners. Make pocket dimensions parametric: - inner radius - outer radius - angular span - pocket depth - end-wall angle - fillet radius Start with a uniform pocket depth of 10 mm for visualization. Keep at least 10 mm of solid structural material between each pocket and the outer rotor circumference. The four pockets must be identical using a circular pattern. Do NOT add: housing, shaft, bearings, pistons, gears, cooling fins, intake, exhaust, spark plug, or other engine components. Generate only the rotor disc with four crescent working pockets. This is a geometry-development model, not a complete engine.

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.