Air Purifier Filter Frame with Snap Fit

Create a 3D CAD model of a plastic air purifier filter frame. **1. Main frame** - Create a square frame with a grid of exactly 20 rows and 20 columns, totaling 400 square openings. - The grid openings must be evenly spaced. - The frame should be thin, lightweight, and suitable for injection molding. - Design the frame to hold filter material behind the grid. **2. Top mounting tabs** - Add two small rectangular mounting tabs on the top edge. - The tabs should be short and narrow, designed to fit into corresponding slots in the air purifier housing. - Position the tabs symmetrically near the left and right sides. - Keep the tabs smaller and less prominent than the bottom snap-fit. **3. Bottom snap-fit mechanism** - Add one integrated cantilever snap-fit hook at the bottom edge of the frame. - The snap-fit must be part of the same continuous plastic component as the frame, not a separate part. - Design it as a flexible cantilever arm with a small hooked tip at its free end. - The hook should deflect when the filter is inserted into the air purifier housing and return to its original position to lock the filter in place. - The hook must be releasable by pressing or flexing the snap-fit arm, allowing the filter to be removed by hand. - Include a suitable retaining shoulder and lead-in ramp to facilitate insertion and secure locking. - Provide a clearance gap around the flexible arm so it can bend without colliding with the frame. - Do not model the snap-fit as a hinge, spring coil, roller, or cylindrical pin. It must be a simple plastic cantilever snap-fit. - Ensure the snap-fit has realistic proportions and a manufacturable geometry. **4. Dimensions and manufacturing** - Use millimeters as the unit. - Create a single integrated CAD part. - Use rounded edges where appropriate. - Avoid unnecessarily complex geometry. - Make the geometry suitable for plastic injection molding. - If exact dimensions are not specified, use reasonable engineering proportions and make all dimensions editable. **5. Required output** - Generate an editable 3D solid model. - Export the model as a STEP file (.step or .stp). - Include front, rear, side, and isometric views. - Ensure the 20 × 20 grid contains exactly 400 openings, not 20 total openings.

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.