The Hong Kong University of Science and Technology MECH 251 CAD/CAM MECH251 LABORATORY CLASS SolidWorks & 3D printer learning

The Hong Kong University of Science and Technology MECH 251 CAD/CAM LAB Regulations No eating and drinking No smoking Turn off your mobile phone or use vibration alert only, avoid mobile using inside the room Leave the lab after the class unless you have access card of 4225C

The Hong Kong University of Science and Technology MECH 251 CAD/CAM Name: Quan lulin, Christine Practice hours: Tuesday 10:30AM- 13:30AM LAB TA’s information

The Hong Kong University of Science and Technology MECH 251 CAD/CAM To learn a popular and powerful 3D CAD software -- SolidWorks To experience designing a real product by using SolidWorks To experience optimizing a design by using Matlab To experience manufacturing a real product by using 3D printer To relate basic concept learnt in the lectures to the CAD/CAM software Objectives of MECH251 LAB

The Hong Kong University of Science and Technology MECH 251 CAD/CAM Attendance/Classwork 20% Homework 30% –Homework must hand in before the next class Projects –Project 1 10% –Project 2 10% –Project 3 30% –Project must finished before 9 May 2011 Grade Policy of LAB Class

The Hong Kong University of Science and Technology MECH 251 CAD/CAM SolidWorks: 8 weeks Matlab: 1 week Rapid Prototyping manufacturing: 2 weeks Projects: begin from the 7 th week Schedule

The Hong Kong University of Science and Technology MECH 251 CAD/CAM Projects Given a part Experience to draw it in Solidworks Know the design parameters Project 1 Optimize the part in Matlab Related to optimization principals Project 2 Optimize the part in Solidworks Based on the stress analysis Project 3 Design an assembly product including this part Manufacturing the product using 3D printer

The Hong Kong University of Science and Technology MECH 251 CAD/CAM SolidWorks Fundamentals Parts, assemblies, and drawings.

The Hong Kong University of Science and Technology MECH 251 CAD/CAM Solidworks Fundamentals Feature based Dimension Driven

The Hong Kong University of Science and Technology MECH 251 CAD/CAM 3D Design Solidworks Fundamentals

The Hong Kong University of Science and Technology MECH 251 CAD/CAM Feature Modeling Solidworks Fundamentals

The Hong Kong University of Science and Technology MECH 251 CAD/CAM Terminology

The Hong Kong University of Science and Technology MECH 251 CAD/CAM User Interface Windows Function

The Hong Kong University of Science and Technology MECH 251 CAD/CAM SolidWorks Document Windows User Interface

The Hong Kong University of Science and Technology MECH 251 CAD/CAM User Interface SolidWorks Document Windows

The Hong Kong University of Science and Technology MECH 251 CAD/CAM Toolbars( Tools Customize… ) User Interface

The Hong Kong University of Science and Technology MECH 251 CAD/CAM System Options Tools Options… User Interface

The Hong Kong University of Science and Technology MECH 251 CAD/CAM Design Method Sketches. Create the sketches, and decide how to dimension, where to apply relations, and so on. Features. Select the appropriate features, determine the best features to apply, decide in what order to apply those features, and so on. Assemblies. If the model is an assembly, select what components to mate, what types of mates to apply.

The Hong Kong University of Science and Technology MECH 251 CAD/CAM All sketches include the following elements: Plane Sketches

The Hong Kong University of Science and Technology MECH 251 CAD/CAM Sketches All sketches include the following elements: Origin

The Hong Kong University of Science and Technology MECH 251 CAD/CAM All sketches include the following elements: Dimension Driving Dimension Sketches

The Hong Kong University of Science and Technology MECH 251 CAD/CAM All sketches include the following elements: Dimension Driven Dimension Sketches

The Hong Kong University of Science and Technology MECH 251 CAD/CAM All sketches include the following elements: Relation Sketches

The Hong Kong University of Science and Technology MECH 251 CAD/CAM Fully Defined. All the lines and curves in the sketch, and their positions, are described by dimensions or relations, or both. Over Defined. Some dimensions or relations, or both, are either in conflict or are redundant. Under Defined. Some of the dimensions or relations in the sketch are not defined and are free to change. You can drag endpoints, lines, or curves until the sketch entity changes shape. No Solution Found. The sketch is not solved. The geometry, relations, and dimensions that prevent the solution of the sketch are displayed. Invalid Solution Found. The sketch is solved but results in invalid geometry, such as a zero length line, zero radius arc, or self-intersecting spline. Sketches Definitions

The Hong Kong University of Science and Technology MECH 251 CAD/CAM Sketching Selecting a starting plane for a sketch Starting a new sketch Accessing and using the sketching tools Dimensioning the sketch and adding and deleting geometric relations Fully defining sketches

The Hong Kong University of Science and Technology MECH 251 CAD/CAM Selecting a starting plane for a sketch Sketching

The Hong Kong University of Science and Technology MECH 251 CAD/CAM Accessing and using the sketching tools Sketching

The Hong Kong University of Science and Technology MECH 251 CAD/CAM Sketch Entities Line Sketching

The Hong Kong University of Science and Technology MECH 251 CAD/CAM Sketch Entities Circle Exercise: Use two methods to sketch the circles below Sketching

The Hong Kong University of Science and Technology MECH 251 CAD/CAM Sketch Entities Parallelograms Press Ctrl while dragging to create a parallelogram at any angle. Drag without pressing Ctrl to create a rectangle at an angle Sketching

The Hong Kong University of Science and Technology MECH 251 CAD/CAM Sketch Entities Polygon Parameters: Number of Sides Center X Coordinate Center Y Coordinate Circle Diameter Angle Sketching

The Hong Kong University of Science and Technology MECH 251 CAD/CAM Sketch Entities Arcs Centerpoint Arc Tangent Arc 3 Point Arc Sketching

The Hong Kong University of Science and Technology MECH 251 CAD/CAM Sketch Entities Ellipse 1 Click in the graphics area to place the center of the ellipse. 2 Drag and click to set the major axis of the ellipse. 3 Drag and click again to set the minor axis of the ellipse. Sketching

The Hong Kong University of Science and Technology MECH 251 CAD/CAM Sketch Entities Parabola Text Sketching

The Hong Kong University of Science and Technology MECH 251 CAD/CAM Sketch Entities Spline Simply Spline Insert Spline Point Sketching

The Hong Kong University of Science and Technology MECH 251 CAD/CAM Exercise Goal: Use sketch entity tool Add relation Dimension Sketching