Autodesk Inventor Training Sketching & Part Modeling

1. Autodesk Inventor TrainingSketching & Part Modeling John Helfen Education Solutions Specialist

2. Agenda • Jump Right In • Sketch Constraints • Heads Up Display • Sketch Tools • Dimensioning

3. Objectives At the end of the class you should be able to: • Create a simple version of the Trebuchet A-Arm. • Explain the purpose of sketch constraints. • Demonstrate how to apply and remove sketch constraintsto control the shape of the Trebuchet A-Arm. • Demonstrate how to apply dimensions to a sketch to control the size of the Trebuchet A-Arm.

4. Jump Right In

5. Easy Like Sunday Morning New Part, New Sketch, New Feature…. 1. 2. 3.

6. What Just Happened? Was it magic… New Part Created • Used the default units selected during install New Sketch • Selected a default origin plane • Constraints added to rectangle automatically New Feature • E = Finish Sketch, Extrude • Enter = accepted default extrude distance

7. Sketch Constraints con·straint n. 1. The threat or use of force to prevent, restrict, or dictate the action or thought of others. 2. The state of being restricted or confined within prescribed bounds 3. One that restricts, limits, or regulates; a check

8. Sketch Constraints Control the sketch shape and represent design intent. • Sketch Constraints Control Shape • Dimensional Constraints Control Size • Remove Degrees Of Freedom (DOF)

9. Sketching Constraint Tips Review what’s going on with sketch tools. All Degrees of Freedom • Shows degrees of freedom in a sketch • Excellent Learning tool Show All Constraints • Review constraints in the sketch • F8 = Show All Constraints • F9 = Hide All Constraints. Application Options • Sketch Tab, Turn off Grid Lines

10. Demonstration(Show/Hide Constraints, Show All DOF, Apply Constraints, Remove Constraints, Dimensions)

11. Activity • View and hide sketch constraints in the Sketch Practice.ipt. (Tip: F8 = Show F9 = Hide) • View all degrees of freedom in the Sketch Practice.ipt. (Leave visible for activity 3) • Apply sketch constraints in Sketch Practice.ipt. • Apply dimensions to objects in the Sketch Practice.ipt • Remove a sketch constraint. (Hint: The X next to the icon is not the answer)

12. Heads Up Sketching Shhh….Listen! The system is speaking to you. Heads Up Display • Constraint Glyphs • Dimensions • Inferred Alignment • Snap • Line Colors

13. Demonstration(HUD, Dimensioning, Drawing Tools)

14. Sketching

15. Activity • Draw 3 circles and dimension the each radius. (Right-click to change between radius and diameter) • Draw 3 Lines connected to the centers of the circles. • Dimension the distance between one lower circle and the upper circle.

16. Activity • Show all degrees of freedom and test the sketch with click and drag. • Make the 2 lower circles horizontal to each other (Hint: Use the center points) • Make the line centerlines(Hint: Icon is on the far right side of the ribbon bar)

17. Activity • Add symmetric constraint • Add the angle dimension • Add the 2 inch diameter circle in the middle (Tip: Be careful not to constraint to the mid-point of the vertical line)

18. Activity • Connect the dots…. • Left-click + Hold + Drag from circle to circle (Tip: Watch for the tangent icon near the cursor when completing each line.)

19. Objectives You are now able to: • Create a simple version of the Trebuchet A-Arm. • Explain the purpose of sketch constraints. • Demonstrate how to apply and remove sketch constraintsto control the shape of the Trebuchet A-Arm. • Demonstrate how to apply dimensions to a sketch to control the size of the Trebuchet A-Arm.

20. Next Class... Assembly Dynamic Simulation