Robot Modelling and Assembling Day 3
-
Upload
sulaiman-dawood -
Category
Documents
-
view
92 -
download
0
Transcript of Robot Modelling and Assembling Day 3
![Page 1: Robot Modelling and Assembling Day 3](https://reader033.fdocuments.net/reader033/viewer/2022042715/558ce9efd8b42aa0498b4608/html5/thumbnails/1.jpg)
Week 2 Day 1
Workshop by
![Page 2: Robot Modelling and Assembling Day 3](https://reader033.fdocuments.net/reader033/viewer/2022042715/558ce9efd8b42aa0498b4608/html5/thumbnails/2.jpg)
Highlights of Previous Lecture
• What is CAD and its advantages?
• Introduction to Pro/ENGINEER and its environment
• Introduction to Sketch mode and its tools
![Page 3: Robot Modelling and Assembling Day 3](https://reader033.fdocuments.net/reader033/viewer/2022042715/558ce9efd8b42aa0498b4608/html5/thumbnails/3.jpg)
Today’s Lecture
• Dimensions– Definition
– Weak Dimensions
– Strong Dimensions
– How to use Dimensions to give a required shape
• Constraints– Definition
– Types of Constraints
• Practicing Dimensions and Constraints
![Page 4: Robot Modelling and Assembling Day 3](https://reader033.fdocuments.net/reader033/viewer/2022042715/558ce9efd8b42aa0498b4608/html5/thumbnails/4.jpg)
Dimensions
• Definition
– Measurement of entities
• Length
• Radius, Diameter
• Angles
![Page 5: Robot Modelling and Assembling Day 3](https://reader033.fdocuments.net/reader033/viewer/2022042715/558ce9efd8b42aa0498b4608/html5/thumbnails/5.jpg)
Weak vs. Strong Dimensions
• Weak Dimensions– Are grey in color
– made automatically by the software
– Can be modified by dragging the edges of shape(s)
• Strong Dimensions– Are in white color
– Have to be entered manually
– Locks the shape, i.e. the feature cannot be dragged to change
![Page 6: Robot Modelling and Assembling Day 3](https://reader033.fdocuments.net/reader033/viewer/2022042715/558ce9efd8b42aa0498b4608/html5/thumbnails/6.jpg)
Dimensioning a Shape
• Draw a rectangle, randomly of any size
• Now we want to make its size
• Double click the weak dimensions
– They will become editable
– Enter the desired values
![Page 7: Robot Modelling and Assembling Day 3](https://reader033.fdocuments.net/reader033/viewer/2022042715/558ce9efd8b42aa0498b4608/html5/thumbnails/7.jpg)
Radius & Diameter Dimensions
• To this rectangle, add Fillet of dimension 3 units
– Fillet measuring dimension is Radius
• Now add a circle at the center of this shape of diameter 5 units or radius 2.5 units
![Page 8: Robot Modelling and Assembling Day 3](https://reader033.fdocuments.net/reader033/viewer/2022042715/558ce9efd8b42aa0498b4608/html5/thumbnails/8.jpg)
![Page 9: Robot Modelling and Assembling Day 3](https://reader033.fdocuments.net/reader033/viewer/2022042715/558ce9efd8b42aa0498b4608/html5/thumbnails/9.jpg)
Angular Dimensions
• Draw 2 lines of any dimensions, both meeting at one point
• Click the Dimension tool
• Select the two lines
• Now click the MMB between these lines
![Page 10: Robot Modelling and Assembling Day 3](https://reader033.fdocuments.net/reader033/viewer/2022042715/558ce9efd8b42aa0498b4608/html5/thumbnails/10.jpg)
Constraints
• Definition
– A limitation or restriction
• Why they are used?
– To give our drawings a definite shape
• Types
– Horizontal, Vertical, Perpendicular, Tangent, Equal Parallel, Symmetric
![Page 11: Robot Modelling and Assembling Day 3](https://reader033.fdocuments.net/reader033/viewer/2022042715/558ce9efd8b42aa0498b4608/html5/thumbnails/11.jpg)
Using Constraints
• Click the constraint icon
• pops-up a window, with title “Constraints”
• Draw different shapes and apply them
• Represented by letters and symbols
![Page 12: Robot Modelling and Assembling Day 3](https://reader033.fdocuments.net/reader033/viewer/2022042715/558ce9efd8b42aa0498b4608/html5/thumbnails/12.jpg)
Horizontal Constraint
• Makes any line horizontal
• Represented by letter “H”
Horizontal constraint
![Page 13: Robot Modelling and Assembling Day 3](https://reader033.fdocuments.net/reader033/viewer/2022042715/558ce9efd8b42aa0498b4608/html5/thumbnails/13.jpg)
Vertical Constraint
• Makes any line vertical
• Represented by letter “V”
Vertical constraint
![Page 14: Robot Modelling and Assembling Day 3](https://reader033.fdocuments.net/reader033/viewer/2022042715/558ce9efd8b42aa0498b4608/html5/thumbnails/14.jpg)
Parallel Constraint
• Makes two line Parallel to each other
• Represented by the symbol “//”
Parallel constraint
![Page 15: Robot Modelling and Assembling Day 3](https://reader033.fdocuments.net/reader033/viewer/2022042715/558ce9efd8b42aa0498b4608/html5/thumbnails/15.jpg)
Perpendicular Constraint
• Makes two lines perpendicular to each other
• Also called “Orthogonal” constraint
Perpendicular constraint
![Page 16: Robot Modelling and Assembling Day 3](https://reader033.fdocuments.net/reader033/viewer/2022042715/558ce9efd8b42aa0498b4608/html5/thumbnails/16.jpg)
Equal Constraint
• Makes two entities equal to each other
• Applied to radius (R), diameter, length (L), angles measurement
Equal constraint
![Page 17: Robot Modelling and Assembling Day 3](https://reader033.fdocuments.net/reader033/viewer/2022042715/558ce9efd8b42aa0498b4608/html5/thumbnails/17.jpg)
Tangential Constraint
• Makes a point tangent to the curve
• Represented by letter “T”
Tangential constraint
![Page 18: Robot Modelling and Assembling Day 3](https://reader033.fdocuments.net/reader033/viewer/2022042715/558ce9efd8b42aa0498b4608/html5/thumbnails/18.jpg)
Applying Constraints
• Equilateral Triangle
• Isosceles Triangle
![Page 19: Robot Modelling and Assembling Day 3](https://reader033.fdocuments.net/reader033/viewer/2022042715/558ce9efd8b42aa0498b4608/html5/thumbnails/19.jpg)
Equilateral Triangle
![Page 20: Robot Modelling and Assembling Day 3](https://reader033.fdocuments.net/reader033/viewer/2022042715/558ce9efd8b42aa0498b4608/html5/thumbnails/20.jpg)
Isosceles Triangle
![Page 21: Robot Modelling and Assembling Day 3](https://reader033.fdocuments.net/reader033/viewer/2022042715/558ce9efd8b42aa0498b4608/html5/thumbnails/21.jpg)
Practice Drawing 1
![Page 22: Robot Modelling and Assembling Day 3](https://reader033.fdocuments.net/reader033/viewer/2022042715/558ce9efd8b42aa0498b4608/html5/thumbnails/22.jpg)
Practice Drawing 2