To Create a Part Model 1 Feature at a Time1 Example Plan for Modeling a PartSteps and the Order in Adding FeaturesAnother example of the steps in adding Features to make a ModelPowerPoint PresentationAnother example of the steps in adding features to make a ModelSketch GraphicsSheetCourse: Introduction to Engineering Graphics and Visualizationcopyright 2010, Georgia Institute of TechnologyTo Create a Part Model1 Feature at a Time1. Plan the order of creating the features to make the finished part2. Draw and fully constrain each 2-D closed sketch3. Create the first base feature using Extrude4. Add other Features5. Edit Features when necessary if the size or location needs to be changed.2SheetCourse: Introduction to Engineering Graphics and Visualizationcopyright 2010, Georgia Institute of Technology1 Example Plan forModeling a PartPlanning for how a part might change, what order to build features, and your design intent prior to building will save time in the end.For example, is it more important that the hole is 1 away from the top of the part or 1 away from the angled face? Perfectly centered all the time?Is the height of the part important or is it driving by the angled face and distance from the hole?Knowing these answers will change how you design the part!3SheetCourse: Introduction to Engineering Graphics and Visualizationcopyright 2010, Georgia Institute of TechnologySteps and the Order in Adding FeaturesBase ExtrusionAdd HoleAdd Fillet4SheetCourse: Introduction to Engineering Graphics and Visualizationcopyright 2010, Georgia Institute of TechnologyAnother example of the steps in adding Features to make a ModelBase ExtrusionHoleDo all 6 fillets as 1 Fillet feature since all are the same radiusDo both fillets as 1 Fillet featureAdd both holes as one Hole Feature5SheetCourse: Introduction to Engineering Graphics and Visualizationcopyright 2010, Georgia Institute of TechnologyBase Extrusion – Extrude downward Add a second Extrusion – Extrude upwardAdd both holes as one Hole FeatureChamferChamfer both edges as one Chamfer FeatureAnother example of the steps in adding Features to make a Model6SheetCourse: Introduction to Engineering Graphics and Visualizationcopyright 2010, Georgia Institute of TechnologyBase ExtrusionAdd both holes as one Hole FeatureDo all 5 fillets as 1 Fillet feature since all are the same radiusAdd FilletAnother example of the steps in adding features to make a Model7SheetCourse: Introduction to Engineering Graphics and Visualizationcopyright 2010, Georgia Institute of TechnologySketch Graphics Adding constraints and dimensions removes degrees of freedom (DoF) in the sketch. Arrows are removed to show these changes.Dragging the corner point of the sketch to the 0,0,0 point projected into the sketch restricts how the sketch entities can move. Not required, but is a good practice.Red DoF arrows are removed. Sketch entities change color showing that they are constrained.Colors shown will change based on the color scheme you are using, but there will always be a difference between constrained and unconstrained entities.Driven dimensions are shown with parenthesis. They are reference dimensions driven by other dimensions. They will update based on the other driving dimensions.In this example, changing the 10 dim to 12 would cause the driven dimension to change to (13) because the overall width is driven by the 25 dim at the bottom.The fx: 25 indicates that the dimension is linked to another dimension or is driven by a function.Display properties of sketch dimensions can be changed by right-clicking in the graphics window and selecting a new style form the “Dimension Display” fly out menu.The expression option will show the name of the dimension and the formula driving
View Full Document
Unlocking...