mech251 laboratory class
DESCRIPTION
MECH251 LABORATORY CLASS. SolidWorks & 3D printer learning. 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. LAB Regulations. - PowerPoint PPT PresentationTRANSCRIPT
The Hong Kong University of Science and Technology
MECH 251 CAD/CAM
MECH251LABORATORY CLASS
SolidWorks & 3D printerlearning
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
• email: [email protected]
• 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 7th week
Schedule
The Hong Kong University of Science and Technology
MECH 251 CAD/CAM
Projects
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