CAD

• Morphing can be used to manipulate your 3D design so that it can be manufactured effectively
• Morphing is like a 3D model being surrounded by mesh which you can pull, stretch, scale etc.
• Extrude Along a Path is a 3D command that enables a profile to follow a path
• A fillet is a curve to smooth off an edge
• A chamfer is a 45 degree cut on an edge
• an irregular chamfer is when the angle is adjusted at either end of the feature
• and irregular fillet is when the edge is tapered
• Lofting is creating surfaces or solids between 2 or more profiles/curves on different work planes
• Solid Models are made by drawings 2D shapes and using a 3S feature to create various 3D forms which can be edited
• The starting point of a solid model is a closed shape
• Surface modelling begins with a line which can be extruded or revolved and given a thickness in order to create a surface
• Surface Modelling allows for more freedom and organic structures than an object that was created with solid modelling
• solid models have to be geometrically correct
• surface models have no thickness and the object can be geometrically incorrect
• There are different kinds of constraints:

  • Mate
  • Align
  • Centre Axis Align
  • Tangent
  • Orientate
  • Offset