3, product modeling and assembly design
3.1 Product Modeling
The lower plate material is ABS plastic, which is formed by injection molding. It is mainly composed of inlet grille, ribs and hook cards. It uses Layer Setting, Create Sketch, Curve, and Section. Section Curve), Basic Curve, Project, Projected Projection, Intersection Curve, Constraints Curve fillet), Extruded Body, Revolved Body, Block, Hole, Pocket, Sweep along Guide, Pad Desk, Sew, Patch, Trim Body, Instance, Hollow, Edge Blend, Ruled, Swept, Quilt, Fusion, Trimmed Sheet, Taper, Replace Face, Mo Three-dimensional modeling is done by commands such as ve Face, Offset Sheet, Extract Geometry, Unite, Subtract, and Intersect. The brief modeling steps are as follows:
(1) Establish a datum plane, a datum axis, and a reference coordinate system;
(2) Layer setting and utilization (1-29 layer solid, 30-49 layer Sketch, each Sketch layer, 50-59 layer Datum data plane and data axis, 60-99 layer Curve and Other required Objects, 100-149 layers put other temporary Objects, 150-199 layers spare, 200-249 layers belong to the drawing range layer, 250-256 is reserved for use);
(3) Create the shape characteristics of the lower panel (using Curve, Project, Combined Projection, Extruded Body, Revolved Body, Pocket, Sweep along Guide, Pad, Sew, Patch, Trim Body, Instance, Hollow, Edge Blend, Ruled, Quilt, Extension , Trimmed Sheet, Taper, Offset Sheet, Extract Geometry, Unite, etc.);
(4) Establishing a thin wall (wall thickness of 2.8 mm) physical feature (Hollow);
(5) Establish intermediate and left and right wind barrier features (using Curve, Project, Combined Projection, Pocket, Sweep along Guide, Pad, Sew, Patch, Trim Body, Instance, Edge Blend, Taper, Offset Sheet, Extract Geometry, Subtract, etc.) command);
(6) Establish a hook card feature (using Extruded Body, Pocket, Instance, Edge Blend, Curve, etc.);
(7) Establishing the rib features on the back of the panel (Extruded Body, Edge Blend);
(8) plus unreleased draft 1° feature (Taper);
(9) Falling unfilled corner R0.5 (Edge Blend);
(10) Perform draft and thickness detection;
(11) Render the product. The final completed 3D cube of the lower panel is shown in Figure 1.
Figure 1 cabinet lower panel
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