ENAR255
Computer Aided Design and Drafting
Syllabus
- Introduction (2 hours)
- AutoCAD interface
- Coordinate system icons, world coordinate system, user coordinate system
- Drawing units and scaling, drawing limits and MV setup
- Utility commands: help, end, quit, qsave, save as, save, savetime
- Drawing Aids and Commands (4 hours)
- Draw lines, polylines, rectangles, polygon, constructed lines, rays
- Curves, circles, arcs, ellipse, elliptical arcs, donuts and points
- Drawing aids: isometric, snap, grid, ortho, object snap, polar tracking, dynamic input, ISO plane
- Function keys
- Drawing Modification Tools and Commands (4 hours)
- Move, copy, rotate, scale, mirror, stretch, array, explode, erase
- Break, trim, extend, fillet, chamfer, offset, lengthen, join
- Editing: polyline, pedit, spline
- Undoing: redo, undo, oops, redraw
- Inquiry command list: dblist, id point, distance, area, volume
- Layer, Annotation and Hatching (8 hours)
- Layers management: properties, line type, ltscale, lineweight, color, isolate, unisolate
- Text and entity properties
- Dimension types, components and dimension style manager
- Hatching: boundaries, hatch pattern, hatch style and alignment
- Display Controls and Blocks, Attributes and External References (2 hours)
- Zoom, pan, managing multiple viewports
- Redraw, regen, regenall
- Creating and inserting a block, block editor and xref editing
- Layout, Plotting, Printing and Publishing (2 hours)
- Changing pen and line type parameters
- Changing plot model specifications and saving them
- Layout and page set up manager
- Plotting and publishing to PDF
- Basic Three-Dimensional Model of Solids (4 hours)
- Types of 3D models and three-dimensional coordinate system
- Three-dimensional modelling: box, cone, cylinder, sphere, wedges, pyramid
- Solid editing: extrude, union, subtract, intersect solids
- Solid modify: rotate 3D, mirror 3D, 3D array, 3D align, fillet, chamfer, slice, section
- Mesh, visualize, rendering
- Basic 3D Modelling of Building (4 hours)
- Introduction to Google SketchUp interface
- Draw tools, modifying tools, editing tools
- Camera: orbit, zoom, pan
- Window: entity info, materials, styles, scenes
- Export, print, animation, model info
Practicals
Thirty hours: drafting of a building (plan, elevation, section, wall section), municipal drawings preparation, and 3D model of a building.