Lecture content: 1. Fundamentals of constructive geometry, introduction to planimetry, stereometry and fundamentals of the CREO system from PTC. 2. Use of constructive geometry in CAD systems, display methods, coordinate systems, entering a point in various coordinates, curves, axes, planes, surfaces, (multisurfaces) - quilts, volumes, points. Sketchbook. 3. Principles of dimensioned projection, spatial curves, b-splines, curves by point and direction, extension and shortening of curves, connecting tangential and curvilinear curves, joining and dividing curves, intersections of curves, intersections of curves with a plane or surface. Offsets of curves. 4. Plane representation, intersection of two planes, stepping and folding of a line, intersection of a line with a plane, method of covering line, slope of a line, rotation of a plane, equations and graphs of curves both in plane and in E3 space. Measurement of distance, length, radius, angle, area and volume, moments of inertia of a cross section. 5. Projection and winding of curves onto surfaces - principles and basic properties of projection, parallel projection, orthogonal projection, central projection, affinity and collineation. Analysis of curves and surfaces, tangent, normal, binormal, type of curve, control points, polynomials. 6. Conic sections, ellipse, hyperbola, parabola, creation of plane, cylindrical, spherical and general surfaces, helical surfaces, NURBS surfaces, surfaces of complex shape. 7. Surface editing, quilting - merge, cut, trim, offset, smoothing surfaces, radius, bevels, projecting curves onto general surfaces, editing general surfaces, measuring deviations, sections, control points, interpolating surfaces points. 8. Volume modeling revolve, extrusion, hole, sketchbook, functional dimensioning, constraints. Editing elements, history tree, parent and child constraints, element swapping, editing crashed elements. 9. Field, mirroring, more complex elements sweep, blend, sweep blend, helical sweep. 10. Axonometry, solid section, broken and developed sections, cross-sections, developments. 11. Shell elements, draft, offset, ribs, threads - casting technology, workpiece. 12. Annotations, dimensional, geometric, surface roughness tolerances and other data and notes on the model. 13. Part drawing, assembly and assembly drawing, bill of materials. AV-standards, norms and calculations. 14. File export, interchangeable file types, renaming, deleting old versions, clearing memory. Exercise content: 1. Information about the subject, background, use of constructive geometry tools in a CAD system, basic orientation in procedures and functions, examples of using planimetry and stereometry in CAD. 2. Projection, coordinate systems and how to use them, types and conversions of coordinates from one coordinate system to another, creation of points and curves, reading from a file, creation of a plane and spatial curve, creation of a gear tooth. 3. Use of equations for creation of points, lines, curves, surfaces and solids, graph and function-controlled curves and surfaces. 4. Construction of projection of curves onto general surfaces, modification of general surfaces, geometric modeling of a household appliance in surfaces. 5. Construction of complex surfaces and solids, connection of surfaces and curves, geometric modeling of design surfaces. Design of a part of the surface of a household appliance. 6. Credit test: creation of a model using the principles of constructive geometry and 3D modeling. 7. Volume modeling revolve, extrusion, stick, geometric modeling of the shaft, functional dimensioning, dimensional tolerances. 8. Editing of elements, history tree, parent and child relationships, element replacements, modification of crashed elements in selected solids and parts. Creation of solid sections. 9. Geometric annotation, surface roughness, other notes. 10. Casting, workpiece - real part made of duralumin. 11.Assembly of shaft and standard parts, gears.
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