intro to 3d modeling lesson 7 - help.autodesk.com · microsoft word -...

Introduction to 3D Modeling

Abstract Introduction to 3D modeling is a beginner level CAD course focusing on easing the transition from 2D to 3D design skills, using Autodesk Fusion 360 CAD CAM. The course includes introductions to industry standard 3D modeling techniques and skills and covers four main types of 3D modeling in Fusion 360. These are Sketching and Parametric modeling, Freeform modeling and sculpting, Direct modeling and Assembly Modeling. Whether you are a designer, engineer, machinist, maker, artist, teacher, student, or just plain curious, this course will help you to take your first steps and make the transition to professional 3D modeling. Through a series of easy to follow video tutorials and 3D modeling exercises, the course will equip you with the necessary professional competencies required for 3D modeling and design.

Introduction to 3D Modeling .................................................................................................... 3 Lesson 7. Direct Modeling ......................................................................................................... 4

Tutorial Video 1: Direct modeling versus Parametric modeling .................................................... 4 Step 1: Open file, turn off the visibility of model elements. ........................................................... 4 Step 2: Edit Sketch to create desired change in model geometry. .................................................. 6 Step 3: Use Direct Editing tools to create desired change to model geometry. .............................. 8

Tutorial Video 2: Direct modeling imported 3D CAD models ...................................................... 12 Step 1: Locate and upload datatset. .............................................................................................. 12 Step 2: Use Move/Copy and Delete to Direct model. ................................................................... 14 Step 3: Use Press Pull to Direct model. ......................................................................................... 18 Step 4: Save model to Introduction to 3D Modeling project. ........................................................ 24

Introduction to 3D Modeling The main aim of this course is to help ease the learning transition from 2D design to 3D modeling. 3D modeling using CAD is a superb additional skillset for any product designer, engineer, or machinist and being able to use Fusion 360 CAD/CAM will enable you to take an excellent idea from a concept, through to a working 3D CAD model for manufacture, testing and production. Fusion 360 and Autodesk Design Academy provide extensive learning resources which make it incredibly easy to use CAD and learn how to 3D Model. Furthermore, Fusion 360 is free to students and educators, works on both Apple and PC operating systems, on multiple devices and platforms. If you are looking to make the transition from 2D to 3D modeling -‐ this course has been developed to guide you through the process and have you up and running, developing design for professional 3D models after a few short lessons.

Lesson 7. Direct Modeling In this lesson, you will use direct-‐editing tools in Fusion 360 to Press-‐Pull, Move/Copy and Delete geometry on an existing model of the Reciprocating Saw casing with and without design history, in order to modify the design.

Tutorial Video 1: Direct modeling versus Parametric modeling Watch this video to learn how making direct modeling edits to 3D CAD models can be more effective than parametric edits, when making design changes later in the design process. After completing this lesson, you will be able to:

• Use the browser to organize the visibility of the reciprocating saw 3D model elements for direct modeling.

• Use parametric modeling to edit the 3D model’s geometry in Fusion 360. • Use Press Pull to modify and edit the 3D model’s geometry in Fusion 360.

Step 1: Open file, turn off the visibility of model elements.

1. Click to show the data panel.

2. Double-‐click to open Reciprocating_Saw.

3. Click to hide the data panel.

4. In the browser, toggle off the visibility of all elements, leaving on the visibility on for the Analysis and one single body: Body19.

5. In the Viewcube, click Front.

6. In the navigation bar, click Fit and zoom closer to the model.

Step 2: Edit Sketch to create desired change in model geometry.

1. In the browser, expand the Sketches and right-‐click Sketch48, and then select Edit Sketch.

2. In the toolbar, click Sketch > Sketch Dimension.

1. Click to select and change the dimension for the width of the first column of slots to 12 mm. Press return.

2. Click Stop Sketch.

3. The parametric design updates. However, note the errors.

4. In the file menu, click Undo > Undo Edit Sketch.

5. In the browser, toggle off the visibility of Sketch48.

Warning errors Warning errors

Step 3: Use Direct Editing tools to create desired change to model geometry.

1. In the navigation bar, click Zoom Window and drag a window around the slot area.

2. Orbit to obtain a slightly angled view.

3. Right-‐click the left inside face on the top slot and click to select Press Pull.

4. Drag the manipulator arrow to the left approximately 3.5 mm and click OK.

1. Click OK. Note that there are no errors. Note the new feature on the timeline: OffsetFaces5. This is the direct edit to the slot face.

2. Right-‐click the left inside face on the second slot and click to select Press Pull.

3. Hold Shift and click the inside face of the third slot.

1. Click the inside face of the top slot. Do not hold shift while doing this. Note that the second and third faces are offset to the same distance as the top slot.

2. Click OK.

3. In the navigation tools, click Fit.

Tutorial Video 2: Direct modeling imported 3D CAD models Watch this video to learn how to make direct modeling edits to imported 3D CAD models without a design history in Fusion 360. After completing this lesson, you will be able to:

• Locate and upload a 3D model to the Introduction to 3D Modeling project on the Fusion cloud.

• Use Press Pull, Move/Copy and delete to modify and edit a 3D model’s geometry in Fusion 360.

Step 1: Locate and upload datatset.

1. Click to show the data panel.

2. Click upload.

1. Locate the file from the dataset Saw_Handle_Casing and then click Open.

2. Click Upload.

3. Click Close.

4. In the data panel, double-‐click on the Saw_Handle_Casing to launch it in Fusion 360.

5. Click to hide the data panel.

Step 2: Use Move/Copy and Delete to Direct model.

1. In the timeline, note that there is no parametric history for this 3D model. Only: Base Feature 1. This is often the case with files imported from other more traditional CAD programs.


Timeline

3. In the navigation bar, click Zoom and zoom closer to the top left of the handle casing 3D model.

4. Holding Shift, click and select the four faces of the support then right-‐click on a selected face and select Move/Copy.

5. Use the arrow to move the support to the left approximately -‐16.5 mm.

6. In the dialog, click Set Pivot.

7. On the 3D model, click to select a new pivot location.

Timeline

Timeline

8. Click to confirm the pivot location.

9. Use the manipulators to rotate the support 30 deg.

10. Click OK.

Confirm pivot

11. Holding Shift, click and select the four faces of the support again. Right-‐click on a selected

face and select Delete.

Step 3: Use Press Pull to Direct model.

1. Use the navigation tools to move closer to the cylinder support and right-‐click the front face of the cylinder and click to select Press Pull.

2. Use the arrow to pull the face forward approximately 32 mm. This ‘grows’ the length of the cylinder form.

3. Click OK.

4. Right-‐click to select the front edge of the cylinder form and click to select Press Pull.

5. Use the arrow to create a fillet.

6. Click OK.

7. Right-‐click to select the outer face of the cylinder form and click to select Press Pull.

8. Use the arrow to edit the width geometry of the outer face of the cylinder, by growing the material. Note that the internal face of the cylinder isn’t altered.

9. Click OK.

10. Right-‐click to select the edge of the support and click to select Press Pull.

11. Use the arrow to grow the edge by adding a fillet.

12. Click OK.

13. Click to select the fillet face and press delete. The fillet is deleted.

14. Right-‐click to select the inside face of the cylinder hole and click to select Press Pull.

15. Use the arrow to change the diameter of the hole.

16. Click OK.

17. Use the navigation tools to Zoom out a little and holding Shift, select all 10 faces of the supporting plate.

18. Right-‐click and select Move/Copy.

19. Use the arrows to move the position of the support. Click OK.

Step 4: Save model to Introduction to 3D Modeling project.


2. In the navigation bar, click Fit.

3. Note that the timeline has tracked all the changes in the design history. We can use the timeline to make any future edits and we can use direct modeling techniques.

4. In the file menu, click Save.

5. Click OK.

intro to 3d modeling lesson 7 - help.autodesk.com · microsoft word -...

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