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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 2: A Simple Exercise: modeling from 2D sketches to a 3D CAD Model ......................... 4
Tutorial Video 1: How to sketch and edit simple 2D rectangles using lines, constraints and Centre Rectangle. ................................................................................................................................... 4
Step 1: Create new design. .............................................................................................................. 4 Step 2: Sketch four lines and add constraints to create a rectangle. .............................................. 5 Step 2: Add dimensions to the rectangle. ....................................................................................... 9 Step 3: Sketch another simple 2D Model using the Centre Rectangle tool. .................................. 10 Step 4: Edit the dimensions of the 2D Model. ............................................................................... 11
Tutorial Video 2: How to create and edit a simple 3D Model using extrude, fillet and timeline features. .................................................................................................................................... 13
Step 1: Extrude the rectangle to create a 3D model of a Cube. .................................................... 13 Step 2. Add a fillet to the top edges. ............................................................................................. 16 Step 3. Sketch then Extrude (cut) a rectangle through the Cube. ................................................. 17 Step 4. Use the timeline to edit model features and dimensions. ................................................ 20 Step 5: Save the model to the Introduction to 3D Modeling project. ........................................... 22
Tutorial Video 3: How to create technical drawings and document the 3D Model. ..................... 24 Step 1: Open the model in the Documentation Environment and set a base view on a new drawing sheet. ............................................................................................................................... 24 Step 2: Create technical drawings and projected views. ............................................................... 25 Step 3: Move and edit views on the drawing sheet. ..................................................................... 26 Step 4: Document dimensions. ...................................................................................................... 28 Step 5: Add a text Leader. ............................................................................................................. 29 Step 6: Edit the Title Block. ............................................................................................................ 30 Step 7 Output drawing and documentation in multiple formats. ................................................. 31 Step 8: Save the documented model to the Introduction to 3D Modeling project. ...................... 31
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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 2: A Simple Exercise: modeling from 2D sketches to a 3D CAD Model Watch this video series to create a simple 3D CAD model in Fusion 360. After completing this lesson, you will be able to:
• Use Fusion 360 to sketch a 2D CAD Model, using simple parametric tools, such as lines, rectangles and constraints.
• Create a simple 3D CAD model in Fusion 360, using simple tools such as extrude and Fillet. • Use the timeline to edit model features and dimensions. • Use the Documentation Environment in Fusion 360 to create technical drawings and output
in various formats.
Tutorial Video 1: How to sketch and edit simple 2D rectangles using lines, constraints and Centre Rectangle. After completing this lesson, you will be able to:
• Use Fusion 360 to sketch and edit simple 2D CAD Models, using simple parametric tools, such as lines, rectangles and constraints.
Step 1: Create new design.
1. Click File > New Design.
2. Click to flick through the tabs at the top and note that we can have multiple files open in Fusion 360.
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Step 2: Sketch four lines and add constraints to create a rectangle.
1. Click Sketch > Create Sketch.
2. Click to select plane to work on.
3. Note when we are in the Sketch environment, the Sketch Palette will launch. The Sketch Palette includes both Options and Constraints.
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4. In the Toolbar, click Sketch > Line.
5. Click to place first point, move the mouse 40mm horizontally and click to specify the next point.
6. Sketch the remaining 3 lines randomly, at different angles and lengths. Ensure that the final line end point is placed on the first point of the first line.
7. This creates an enclosed shape.
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8. In the Sketch Palette, click Perpendicular.
9. Now click the top line, then the right-‐hand line on the enclosed shape. This constrains the two lines to form a right angle in the top right corner. Note that the Perpendicular symbol indicates this in the top right corner of the enclosed shape.
10. With the Perpendicular constraint tool still selected, click the left-‐hand line, then the top line on the enclosed shape. This constrains these two lines to also form a right angle in the top left corner. Note that the Perpendicular constraint symbol indicates this in the top left corner of the enclosed shape.
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11. In the Sketch Palette, click Parallel.
12. Now click the top line and the bottom line on the enclosed shape. This constrains these two lines to be parallel to each other. Note that the Parallel constraint symbol indicates this, just below each of the lines.
13. In the browser, expand the sketches to reveal Sketch1. Toggle off and then on the visibility of the sketch.
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Step 2: Add dimensions to the rectangle.
1. In the Toolbar, click Sketch > Sketch Dimension.
2. Click to select the top line then the bottom line, drag to the right, click again and enter 50 mm and then press return on your keyboard.
3. With the Sketch Dimension tool active, repeat for the left and right lines, drag down and enter 50 mm then press return on your keyboard.
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4. In the toolbar, click Stop Sketch.
Step 3: Sketch another simple 2D Model using the Centre Rectangle tool.
1. Click Sketch > Create Sketch.
2. Click to select plane to work on.
3. Click Sketch > Rectangle > Center Rectangle.
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4. If necessary, use the Pan tool to pan to the left and click to place the center point of the second rectangle to the left of the first rectangle. Drag out to specify the size of the rectangle, or enter the dimensions directly.
5. To enter dimension directly, enter 50 mm, then tab on the keyboard, enter 50 mm and then press return.
Step 4: Edit the dimensions of the 2D Model.
1. Double-‐click the measurement, enter a new measurement then press return on the keyboard.
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2. In the Browser, note Sketch2. This is the second sketch – the Center Rectangle.
3. Click to toggle on and off Sketch1 and Sketch2 in the browser.
4. In the toolbar, click Stop Sketch.
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Tutorial Video 2: How to create and edit a simple 3D Model using extrude, fillet and timeline features. After completing this lesson, you will be able to:
• Create a simple 3D CAD model in Fusion 360, using simple tools such as extrude and Fillet. • Use the timeline to edit model features and dimensions.
Step 1: Extrude the rectangle to create a 3D model of a Cube.
1. In the browser, click to toggle off the visibility of Sketch2.
2. In the Viewcube click Home.
3. In the toolbar, click Create > Extrude.
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4. Click to select the 2D enclosed rectangle.
5. Use the arrow to drag to 50 mm or enter 50 mm directly and press return on the keyboard.
6. In the Viewcube, click Home.
7. Use the navigation tools to orbit the 3D model of the cube.
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8. In the Viewcube, click Home.
9. In the browser, expand Bodies to reveal Body1. This is the cube.
10. Toggle off the visibility of Body1. Note the visibility of the 3D model on the canvas.
11. Toggle on the visibility of Body1. Note the visibility of the 3D model on the canvas.
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Step 2. Add a fillet to the top edges.
1. In the Toolbar, click Modify > Fillet.
2. Select the top four edges on the cube.
3. Click and drag the arrow or enter the radius of 1 mm directly.
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4. Click OK to close the dialog and confirm the fillets.
Step 3. Sketch then Extrude (cut) a rectangle through the Cube.
1. In the Viewcube, click Top.
2. In the toolbar, click Sketch > Rectangle > Center Rectangle.
3. Click to select the top face of the cube.
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4. Click and drag to set the dimensions of the rectangle to 20 mm by 20 mm, or enter them directly then click OK.
5. In the toolbar, click Create > Extrude.
6. Click to select the sketch.
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7. Click the arrow and drag it down through the cube. Note that the extrude color will change to red indicating the ‘cut’.
1. Ensure that the extrusion cuts the rectangle all the way through the cube and use the orbit tools, if necessary. In the dialog, the operation will change to cut. Click OK.
8. In the Viewcube, click Home.
9. Use the navigation tools to orbit and survey the 3D model of the cube.
Operation is cut
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Step 4. Use the timeline to edit model features and dimensions.
1. In the timeline, click and drag the marker to view the different steps and stages of the 3D model design process.
2. Click to play the timeline.
3. In the timeline, double-‐click or right-‐click the third Sketch feature to edit it.
4. Double click the height dimension and enter 10 mm.
5. In the Toolbar, click Stop Sketch.
Click to play
Drag marker
Sketch feature
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6. Note that the extrude dimensions of the 3D model updates with the edit.
7. In the timeline, double click or right-‐click the second extrude feature to edit.
8. Use the arrow to change the distance of the extrusion.
9. Click OK.
Extrude feature
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10. Note that the height of the 3D model updates with the edit.
Step 5: Save the model to the Introduction to 3D Modeling project.
1. In the file menu, click Save.
2. Name the file Simple_Cube and specify the location as Introduction to 3D Modeling > Master, then click Save.
3. Click to show the Data Panel.
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4. The file is saved to the Introduction to 3D Modeling project on the Fusion cloud.
5. Click to hide the data panel.
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Tutorial Video 3: How to create technical drawings and document the 3D Model. After completing this lesson, you will be able to:
• Use the Documentation Environment in Fusion 360 to create technical drawings and output in various formats.
Step 1: Open the model in the Documentation Environment and set a base view on a new drawing sheet.
1. Click Model > Drawing > From Design.
2. In the dialog set, • Full Assembly: Yes • Drawing: Create New • Template: From Scratch • Standard: ISO • Units: mm • Sheet Size: A3 • Click OK
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Step 2: Create technical drawings and projected views.
1. In the dialog, change the Scale to 2:1 and the Style to Shaded with Hidden Edges.
2. Click to place the base view in the top left corner of the drawing sheet.
3. Click OK.
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4. In the toolbar, click Drawing Views > Projected View.
5. Click to select the base view as the parent view.
6. Drag and click to place the two views on the sheet.
Step 3: Move and edit views on the drawing sheet.
1. In the toolbar, click Modify > Move.
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2. Click to select the view to move.
3. In the Move dialog, click Transform.
4. Click to select point on the view.
5. Move the view and then click to place the view.
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6. Click OK to close the Move dialog.
Step 4: Document dimensions.
1. In the toolbar, click Dimensions > Dimension.
2. Click to specify two points of measure on the drawing, drag to left and click to place the dimension.
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3. Repeat for other dimensions.
Step 5: Add a text Leader.
1. In the toolbar, click Text > Leader.
2. Click a point on drawing view, drag out the leader, click to place text and enter text.
Click point Drag, place and enter text
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3. In the dialog make necessary changes to the text style and click Close to confirm.
Step 6: Edit the Title Block.
1. Double-‐click the title block on the sheet.
2. In the dialog, enter information in the fields then clock OK to confirm the edits.
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Step 7 Output drawing and documentation in multiple formats.
1. In the toolbar, click Output and select format from PDF, DWG, Drawing Template and CSV.
Step 8: Save the documented model to the Introduction to 3D Modeling project.
1. In the file menu, click Save.
2. Enter Simple_Cube_Drawing for name, save to Introduction to 3D Modeling project on the Fusion cloud and click Save.
3. Click to open the show the data panel.
4. The drawing is saved to the Introduction to 3D Modeling project on the Fusion cloud.
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5. Click to close the data panel.
1. fourth point at approximately 85 deg and 37 mm.
