PASADO Y PRESENTE
2. Antecedentes de la formación en interpretación
Cast parts can be some of the most difficult to modify if draft and complex fillets have not been inserted early on with design intent.
11. Using the Mold Tools toolbar.
Objective:
Modify the casting to enable mold
creation.
33 12. Draft Angle Analysis.
Face Classification
(source: SolidWorks help)In the graphics area, each face displays a color based on the Draft angle you selected.
Draft analysis results listed under Color Settings are grouped into four categories, when you specify Face classification:
Positive draft. Displays any faces with a positive draft, based on the reference draft angle you specified.
A positive draft means the angle of the face, with respect to the direction of pull, is more than the reference angle.
Negative draft. Displays any faces with a negative draft, based on the reference draft angle you specified.
A negative draft means the angle of the face, with respect to the direction of the pull, is less than the negative reference angle.
Draft required. Displays any faces that require correction.
These are faces with an angle greater than the negative reference angle, and less than the positive reference angle.
Straddle faces. Displays any faces that contain both positive and negative types of draft.
Typically, these are faces that requires you to create a split line.
NOTE: Display colors may vary. The first time you use draft analysis, the system uses default colors.
If you modify the colors, the system will use the new colors you specified.
13. Here we can see that no draft is present on the current part.
14. Applying Draft. Select the Draft icon, and then select the top planar face of the object.
35 15. Applying “setback” fillets. Select the three intersecting edges, and then select
the intersection vertex.
6. Apply the following parameters.
16. Add draft and fillets where required. Run a draft check to ensure all faces have draft. Typical Radii - .125”, .060”. Typical Draft 1.
17. This is how the finished model should appear after rendering.
37
EXERCISE 15
Cavity & Core Creation
Cavities and Cores can be created using SolidWorks.
18. Start a new assembly and name it E15. Insert the E14 Finished part file into the new assembly at the origin. Insert a new part, name it Cavity, and drop it onto the “Top” plane of the E15 assembly. Draw the following. Note the origin location.
39 19. Extrude-boss 6”.
20. Select the Cavity Icon. The next screen should look like this… Select the E14 part file either from the screen or feature tree.
21. Once the cavity has been initiated you will get the “Resolve Result Ambiguity” box. Just hit okay. This allows you to select the cavity or core separations available.
22. Hide the E14 component and you should now see the cavity.
41
EXERCISE 16
Configurations with Design Tables
Design Tables can be very useful for designing multiple variations of the same part.
1. Sketch the following on the “Front” plane. Extrude 2”.
2. Sketch the circle and extrude cut through all.
Objective: Create
43 3. RMB click on the Annotations folder in the tree. Select “Show feature
dimensions”.
4. Also, go to, “View/Dimension Names”
5. You should now zoom out and see all the dimensions. Arrange them so they are clear to see.
6. Go to “Insert/Design Table and select New”.
7. Type in the Small thru Large text in the left column. Then select cell 2-B and then double click on the dimension you wish to enter into the table.
45 8. Once the four cells are filled in, type the following specification into the cells
below.
9. It should look like this when complete. Click in the view area and you will receive the following message if it was successful.
10. Click on the configurations manager tab and you will see the new configurations. Double click on any of the configurations to see it.
11. You are finished with the model. Make the Drawing.
47
49 EXERCISE 17
Advanced Equations
1. Here is an example of how to use equations. The images below represent the same model, but can easily be changed by double clicking on a dimension, and typing in a new value. This normally would create rebuild errors because the rib stack would need to be adjusted as well. Equations can be set up to automatically perform this task.
20. Sketch the following on the “Front” plane. Dimension in the order as show.
Objective: Using
21. Extrude 1.5”. Add 1 of draft when ready. (Note: Do not extrude with draft)
22. Start a sketch on the bottom surface, and draw the following. Extrude with 1 of draft when ready.
51 23. Create a linear pattern.
24. Create a new sketch; Draw the following with coincident relations on both sides of the cylinder. Let it become a driven dimension. Rebuild. Rename sketch to “Target gap distance”.
25. Activate the “View Feature Dimensions” and “Show Dimension Names”.
26. Rename the dimensions as seen below. This can be done by simply RMB click on any dimension you would like to change. Go to Properties and entering different names in the box on the top right.
27.
Creating Equations
. Go to Tools/Equations. Then select double click in the cell below “Equations”. Click once on the desired dimensions to have the names automatically insert into the equations editor.53