Solid Modeling SolidWorks Layout 2D Sketching ENGR 1182 SolidWorks 01

Solid Modeling In The Real World Mechanical and Aerospace engineers need solid models of jet engine components and assemblies to do analysis on for component strength under high stresses and temperatures. This method of analyzing components for strength is called finite element analysis and is growing more popular in industry as a tool for predicting part viability.

Today’s Objectives Introduction to: Layout of SolidWorks 2D Sketching Starting SolidWorks Part File Layout 2D Sketching SW01 In-Class Activity View Block First 2D Profile SW01 Out-of-Class Homework Assignment

SolidWorks Layout ENGR 1182 SolidWorks 01

SolidWorks Layout Starting SolidWorks Part File Layout Three Main Options Part File Layout Tool Ribbon 3D Part Creation Model Tree View Options Mouse Options

Starting SolidWorks The new file icon will bring up the following dialog box SolidWorks is started from the Start menu. The 3 new files icons represent part files, assemblies, and drawings. Currently we’re going to start with the basic building block of any project and that is part files. Also notice the Tutorials icon for extra help learning SolidWorks

SolidWorks Part File Layout Tool bar ribbon View Options Model Tree

SolidWorks Part File Layout Status Bar Information Line Units Control

SolidWorks Tool Ribbon Two most commonly used tabs: Features and Sketch Features tab is 3D operations, Sketch is 2D. Operations that are not currently available are gray.

SolidWorks 3D Part Creation The tool ribbon shows the tools available for creating 3D parts from 2D sketches

The left hand side of your SolidWorks menu is known as the Model Tree SolidWorks Model Tree The left hand side of your SolidWorks menu is known as the Model Tree In a new part file it only shows the original 3 reference planes and the origin The model tree shows the creation of the part from top to bottom. The top is the beginning operations and the bottom is the last operations.

SolidWorks Model Tree The Model Tree keeps track of the model creation by showing the sketches or features used in order from top to bottom Notice that the sketches are no longer shown once used for a feature but can be accessed by clicking the plus sign next to that feature The model tree shows the creation of the part from top to bottom. The top is the beginning operations and the bottom is the last operations.

SolidWorks Viewing Options Viewing Option Layout In the top middle of the workspace there is a view menu Top Left Front Right Back “Normal to” view option orients to a selected plane or surface The layout of available views is not labeled but it should be easy to recognize the views from their layout. Bottom

SolidWorks Display Options The other icons control zoom, section views, display type and other advanced options Shadows and RealView Graphics (reflections) should be turned off before printing assignments

SolidWorks View Selector Cube The View Cube allows the user to see and select model views.

SolidWorks Mouse Buttons Left Click and Drag is a Selection Tool The Mouse Wheel Rotate wheel to zoom in/out on cursor Push down and hold on the wheel to rotate objects in 3 dimensions

SolidWorks Layout Wrap Up Starting Solidworks Part Assembly Drawing Part Layout Tool Ribbon  Features and Sketch Model Tree View Options  “Normal To” Mouse Shortcuts Homework Assignment SW01-OUT:

SolidWorks Layout Practice Open this file in SolidWorks and familiarize yourself with the view options as well as zooming in and out. Also become familiar with navigating with the middle mouse button

2D Sketching ENGR 1182 SolidWorks 01

2D Sketches Profiles: Closed loop shape that is drawn on a flat 2D plane (referred to as a datum) and is used to create 3D objects. 2D Profiles consist of: Points Lines Circles Arcs Etc.

Orientation of Sketch Pick Starting Plane Top planes Consistent shapes from top to bottom Front and Right planes Consistent shapes from left to right The orientation of the 3D part is first determined by the location of the 2D sketch The designer can select the appropriate plane to start the sketch depending upon the desired shape Top planes can be used to create base features that are consistent shapes from top to bottom Front and Right planes are used to create base features that are consistent shapes from left to right

Design Sketching User inputs (mouse clicking) are approximate values that are interpreted by the parametric design software to exact locations. These “guesses” by the computer are usually desired in order to create a closed loop profile and have the endpoints of lines match up

Acceptable Profiles Closed Loop Created from Lines, Circles, and Arcs Nested Loops Errors A closed loop profile is a profile that has a concise number of 1D pieces that define a desired 2D shape Solid lines are 1D entities that must be connected to other lines in order to create a closed loop Nested loops are profiles where the space between the outer and the inner lines defines the space Errors occur when there 1D entities that do not form a closed loop and examples are shown to the right

SolidWorks: Main Interface The tool bar ribbon options will update automatically to match the current status of the model

SolidWorks: Sketching Basic Tools Tool Ribbon Lines and Circles are the most important tools Also important are Arcs and Fillets Most objects can be created using these options The dropdown arrows next to each icon contain more options for each tool type

SolidWorks: Sketching Advanced Tools Tool Ribbon Trim can be used to remove excess lines Offset can be used to duplicate a profile either inside or outside the original These tool options are not required but can help reduce the time it takes to create a sketch

SolidWorks: Sketching The Line tool will continue to start a new line from the previous end point until ESC is pressed Circles and Arcs can be added to the profile

SolidWorks: Trimming “Trim to closest” is the option that was used to remove part of the circle Another option for creating the arc is to start with a full circle and then trim away the excess material

SolidWorks: Trouble Shooting Extra lines can be deleted by left-clicking and using the delete key Processes can be reversed by the Undo Function (Ctrl Z) or a list of operations can be viewed using the undo menu at the top of the user interface

Fillets can be added to two lines that originally intersect SolidWorks:2D Fillets Adding a fillet shortens the two lines and the sharp corner is replaced by a rounded corner Fillets can be added to two lines that originally intersect

SolidWorks: Exiting a Sketch Two options are available for Exiting a Sketch and saving any changes made

2D Sketching Wrap-Up Profiles closed loop shape that is drawn on a flat 2D plane Main Tools Circles Lines Acceptable Profiles Closed Loop Trim removes excess of lines The dimensions are not as important as the shape

Out-of-Class Assignment Re-create the shape from the lecture slides on the FRONT plane. Focus on shape and proportionality not dimensions (the fillet was chosen because of the relative size of the members, not for an exact dimension). Start with the simple shape but then if the student wants they can move on to the harder image

Important Takeaways Layout of SolidWorks Tool Ribbon Model Tree View Options 2D Sketching Basic and Advanced Tools The homework from todays class is to complete the in-class exercises. In future class sessions there will be an in-class activity and an out-of-class assignment. Only the out- of-class assignment will be collected.

What’s Next? Due Next Class: SW01 Out of Class HW Before next class, you will read about the extrusion and revolution tools of solid modeling The extrusion and revolution features are used to create 3D shapes using a 2D sketch. Take SolidWorks 2 Quiz on readings