Modular Finger Ring with Hinges

Create a 3D CAD model of a modular, interlocking wearable finger ring with a rectangular housing on top and hinge joints on the front and back. The object must be a single solid body composed of three distinct geometric features: a bottom C-clip, a top recessed tray, and cylindrical hinge knuckles. All dimensions are in millimeters. 1. The Base C-Clip (Finger Ring) Shape: An open cylindrical tube (a 'C' shape). Inner Diameter: 18.0 mm. Wall Thickness: 2.0 mm (Outer Diameter = 22.0 mm). Extrusion Width: 10.0 mm. Opening: A 7.0 mm gap cut out of the bottom center of the cylinder to allow a finger to snap into it. 2. The Top Sensor Tray Shape: A rectangular box sitting tangentially directly on top center of the C-clip. Outer Dimensions: 18.5 mm (Length/Y-axis) x 14.5 mm (Width/X-axis) x 5.0 mm (Height/Z-axis). Inner Cavity: A rectangular pocket cut out of the top face of the box. Cavity Dimensions: 15.5 mm (Length) x 11.5 mm (Width) x 3.0 mm (Depth). Wall Thicknesses: This cavity leaves 1.5 mm thick outer side walls and a 2.0 mm solid floor separating the inside of the cavity from the top of the C-clip. 3. The Interlocking Hinge Joints Front Edge (Male Hinge): Protruding from the front outer edge of the rectangular tray is a single horizontal cylinder. Outer Diameter: 4.0 mm. Through-hole: A 2.0 mm hole passing perfectly through the center axis of the cylinder. Length: 4.6 mm long, centered exactly in the middle of the tray's front face. Back Edge (Female Hinge): Protruding from the back outer edge of the tray are two horizontal cylinders acting as the receiving hinge. Outer Diameter: 4.0 mm. Through-hole: A 2.0 mm hole passing through the center axis. Positioning: These two cylinders are located at the far left and far right corners of the back edge. Each cylinder is roughly 4.5 mm long, leaving a 5.5 mm wide open gap directly in the center to receive the male hinge of the next connected piece. 4. Alignment and Clearances The top of the C-clip merges cleanly into the bottom center of the 2.0 mm thick solid floor of the rectangular tray. The 4.0 mm hinge cylinders are aligned so that their center axes are flush with the bottom face of the rectangular tray, keeping the hinge mechanism low-profile.

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.