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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.
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Introduction to 3D Modeling .................................................................................................... 3 Lesson 5: Parametric Modeling in Fusion: from 2D to 3D ......................................................... 4
Tutorial Video 1: Extrude the 2D sketch to 3D model the saw trigger. .......................................... 4 Step 1: Extrude the trigger sketch in two parts to create two separate bodies. ............................. 4 Step 2: Create fillets for the trigger rod post. .................................................................................. 8 Step 3: Create fillets for the trigger main body. ............................................................................ 10 Step 4: Combine and join both trigger bodies to make one single trigger body. .......................... 11 Step 5: Create a fillet for the joined section of the new body. ...................................................... 12 Step 6: Rename new trigger body in the browser. ........................................................................ 13 Step 7: Save new file and navigate to Data Panel to view saved file. ............................................ 14
Tutorial Video 2: Managing Physical Materials and Appearances ............................................... 16 Step 1: Use the Marking Menu to Apply Physical Materials. ........................................................ 16 Step 2: Use the Material Editor ..................................................................................................... 18 Step 3: Use the Marking Menu to Assign Appearances. ............................................................... 19 Step 4: Change the color of the appearance. ................................................................................ 19 Step 5: Save the Trigger design ..................................................................................................... 21
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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.
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Lesson 5: Parametric Modeling in Fusion: from 2D to 3D In this lesson, you will use the parametric sketch of the Reciprocating Saw Trigger, which you created in the previous lesson to begin solid modeling. Using the sketch you will Extrude, Fillet and join the two bodies to create a solid model of the saw trigger. At the end of the lesson, you will consider when and learn how to apply Physical Materials and assign Appearances to your 3D models.
Tutorial Video 1: Extrude the 2D sketch to 3D model the saw trigger. Watch this video to learn how to extrude and 3D model the Reciprocating Saw trigger sketch, using an attached canvas image for reference in Fusion 360. After completing this lesson, you will be able to:
• Extrude the trigger sketch to create two bodies. • Add fillets, combine and organize bodies in the Browser. • Use the attached canvas image for reference.
Step 1: Extrude the trigger sketch in two parts to create two separate bodies.
1. In the browser, toggle off the visibility of the attached canvas.
2. In the Veiwcube, click home then use the navigation bar to Zoom out a little.
3. In the toolbar, click Create > Extrude.
Click
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4. Click to select the main trigger profile sketch and in the Extrude dialog, change Direction to Symmetric.
5. Click the arrow and drag to set the extrude distance to 10 mm. Note that the trigger main shape extrudes in both directions with a total distance of 20 mm, due to the applied symmetry.
6. Click OK.
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7. In the browser, toggle on the visibility of Sketch1.
8. In the toolbar, click Create > Extrude.
9. Click to select the rod post profile sketch.
10. In the Extrude dialog, change Direction to Symmetric.
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11. Click the arrow and drag to set the extrude distance to 2.5 mm. Note that the trigger rod post extrudes in both directions with a total distance of 5 mm, due to the applied symmetry.
12. In the Extrude dialog, set the Operation to New Body and click OK.
13. In the browser, note the two bodies. Body1 is the trigger main shape and Body2 is the trigger post. Toggle the visibility of the two bodies off then on. Note the visibility of the sketches in the CAD model.
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14. In the browser, toggle off the visibility of the two sketches.
Step 2: Create fillets for the trigger rod post.
1. In the toolbar, click Modify > Fillet.
2. Click and select all 8 edges on the rod post. Use the navigation tools to orbit, if necessary.
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3. Click and drag the arrow to create the fillets, or enter the fillet radius of 1 mm directly in dialog.
4. Click OK.
5. In the browser, toggle off the visibility of the trigger rod post body (Body2).
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6. In the Viewcube, click Home.
Step 3: Create fillets for the trigger main body.
1. In the toolbar, click Modify > Rule Fillet.
2. Click and drag a selection window around the entire trigger main body to select all 5 edges on the trigger main body.
3. In the Rule Fillet dialog set, • Radius: 2 mm • Scope Options: All edges. • Topology: Any. • Click OK
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Step 4: Combine and join both trigger bodies to make one single trigger body.
1. In the browser, toggle on the visibility for Body2.
2. In the toolbar, click Modify > Combine.
3. Click the main trigger body then the trigger rod post.
Click to toggle on
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4. In the dialog set, • Target Body: Main Trigger Body (Body1). • Tool Body: Rod Post (Body2). • Operation: Join. • New Component: No. • Keep Tools: No. • Click OK.
5. Note that in the browser, the two bodies have been combined to make only one (Body1).
Step 5: Create a fillet for the joined section of the new body.
1. In the Viewcube, click Home.
2. In the toolbar, click Modify > Fillet.
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3. Click to select the entire loop edge joining the rod post to the trigger main body.
4. Enter 1 mm for the fillet radius, and then click OK.
5. Use the navigation tools to orbit and survey the new 3D model of the saw trigger.
Step 6: Rename new trigger body in the browser.
1. In the browser, double-‐click on the trigger body (Body1) and rename it to Trigger then press return.
Rename to Trigger
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Step 7: Save new file and navigate to Data Panel to view saved file.
1. In the file menu, click Save.
2. Name the file Trigger and save to the Introduction to 3D Modeling > master then click Save.
3. Click to show the data panel.
4. The Trigger 3D Model has been saved to the Introduction to 3D Modeling project on the Fusion cloud.
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5. Click to hide the data panel.
6. In the browser, toggle on the visibility of the Attached Canvas.
7. In the Navigation bar, click Fit.
8. Use the navigation tools, such as orbit to view and survey the new 3D Model of the Reciprocating Saw trigger.
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Tutorial Video 2: Managing Physical Materials and Appearances Watch this video to learn when to apply and manage Physical Materials and Appearances in Fusion 360. After completing this lesson, you will be able to:
• Assign and manage Physical Materials and Appearances in Fusion 360. Step 1: Use the Marking Menu to Apply Physical Materials.
1. Right-‐click on the Fusion canvas to launch the Marking Menu, and then click Physical Material.
2. In the dialog, at the top, note the default material of Steel In This Design. Also note the Library contains multiple types of materials and many profiles for each type, when expanded.
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3. Click to expand Plastic in the Library. There are multiple options for various plastic profiles, which we can assign. Click ABS Plastic.
4. To apply the material. Simply click, drag and drop onto the trigger body, either in the browser or on the 3D model directly.
5. In the dialog, note that the new material ABS Plastic appears at the top, In This Design. Click ABS Plastic In This Design.
Click Drag Drop
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Step 2: Use the Material Editor
1. Click Advanced to launch the Material Editor.
2. Click to explore Identity, Appearance and Physical Properties. Click Cancel to return to the Physical Material dialog.
3. Click Close to close the Physical Material dialog.
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Step 3: Use the Marking Menu to Assign Appearances.
1. Right-‐click on the Fusion canvas to launch the Marking Menu, and then click Appearance.
2. In the dialog, at the top, note the default material appearances of Steel (Satin) and ABS (White) In This Design. Also note the Library contains multiple types of appearances and many profiles for each type, when expanded.
3. To apply an appearance. Simply click, drag and drop onto the relevant body, either in the browser or on the 3D model directly.
Step 4: Change the color of the appearance.
1. Double-‐click on the ABS (White) appearance In This Design for more options.
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2. Use the slider and picker tools to change the color. Note that the appearance color changes in real time on the 3D model.
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4. Click Done.
5. Click Close to close the Appearance dialog.
Step 5: Save the Trigger design
1. In the file menu, click Save.
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2. Click OK.