Create a 2D sketch using rectangles, lines, and arcs, and apply custom dimensions.
Tutorial resources
These downloadable resources will be used to complete this tutorial:
Transcript
00:03
All part models created in Autodesk Inventor start with sketches,
00:07
which you create by drawing geometric elements, such as points, lines, shapes, and arcs.
00:13
The sketch becomes the basis for sketched features,
00:17
such as extrusions, revolutions, lofts, coils, or sweeps, which add volume to the sketched part.
00:24
On the Home tab, open the Projects menu and click Settings.
00:29
In the Projects dialog, click Browse, and then navigate to where you saved the project files for this tutorial.
00:36
Select Steering Knuckle.ipj, and then click Open.
00:41
In the Projects dialog, click Done.
00:45
Then, in the Quick Access Toolbar, click New.
00:49
This opens the Create New File dialog.
00:52
Select Standard.ipt.
00:55
This template lets you create a 2D or 3D object.
00:59
Click Create.
01:02
Once the template is applied, the graphics window opens.
01:06
Now you can create a sketch.
01:08
To do so, right-click in the modeling window.
01:12
From the marking menu, select New Sketch.
01:16
This opens the sketch environment, which includes sketching tools and commands,
01:21
and the graphics window, where you work directly on your sketch.
01:25
It also includes the browser, which shows a sketch icon as soon as you create a sketch.
01:30
In the graphics window, set the X-Z plane as the sketch plane.
01:35
Using the ViewCube, use the rotation arrow to rotate the view until the word Top is horizontally displayed.
01:42
Right-click to open the marking menu again, and select Two Point Rectangle.
01:47
In the graphics window, place the first point at the origin point to start the rectangle, and then move your cursor to the upper right.
01:55
In the dynamic dimensioning boxes, enter 0.12 in for the horizontal value.
02:01
Press TAB, enter 0.5 in for the vertical value, and then press ENTER to create the rectangle.
02:09
Right-click, and from the marking menu, select OK to close the rectangle command.
02:15
Open the marking menu again, and this time, click Create Line.
02:21
Start the line by clicking the top right corner of the rectangle.
02:25
Move your cursor down and to the right.
02:28
In the dynamic dimension box, enter “ArmLength = .7 in” and press TAB.
02:35
This creates a parameter named ArmLength that can be referenced in other dimensions.
02:41
For the angular dimension, enter “ArmAngle = 180-52”.
02:47
This calculates the value for the ArmAngle parameter as 128-degrees.
02:53
Click to complete the line.
02:56
Click on the endpoint of the previous line and drag to create an arc off to the lower left of the last point.
03:04
Then, click the bottom right corner of the rectangle to add a final line segment.
03:09
Right-click, and from the marking menu, select OK to close the line command.
03:14
A critical aspect of sketching is making sure that your geometry is stable.
03:20
Inventor automatically applies some constraints to sketch geometry as you work, and you can also add geometric constraints manually.
03:28
Press and hold CTRL as you right-click the graphics window to open the constraint marking menu.
03:35
Select Tangent.
03:37
A Tangent constraint positions faces, planes, cylinders, spheres, cones, and ruled splines tangent to one another.
03:46
Select the arc and line segment to add a tangent constraint, and then press ESC.
03:51
Open the marking menu again and select General Dimension.
03:57
Select the arc, and then click to place the dimension.
04:01
In the dimension box, type 0.13 in.
04:06
Press ENTER.
04:08
You have now created a 2D sketch using rectangles, lines, and arcs.
04:15
Right-click, and from the marking menu, select Finish 2D Sketch.
00:03
All part models created in Autodesk Inventor start with sketches,
00:07
which you create by drawing geometric elements, such as points, lines, shapes, and arcs.
00:13
The sketch becomes the basis for sketched features,
00:17
such as extrusions, revolutions, lofts, coils, or sweeps, which add volume to the sketched part.
00:24
On the Home tab, open the Projects menu and click Settings.
00:29
In the Projects dialog, click Browse, and then navigate to where you saved the project files for this tutorial.
00:36
Select Steering Knuckle.ipj, and then click Open.
00:41
In the Projects dialog, click Done.
00:45
Then, in the Quick Access Toolbar, click New.
00:49
This opens the Create New File dialog.
00:52
Select Standard.ipt.
00:55
This template lets you create a 2D or 3D object.
00:59
Click Create.
01:02
Once the template is applied, the graphics window opens.
01:06
Now you can create a sketch.
01:08
To do so, right-click in the modeling window.
01:12
From the marking menu, select New Sketch.
01:16
This opens the sketch environment, which includes sketching tools and commands,
01:21
and the graphics window, where you work directly on your sketch.
01:25
It also includes the browser, which shows a sketch icon as soon as you create a sketch.
01:30
In the graphics window, set the X-Z plane as the sketch plane.
01:35
Using the ViewCube, use the rotation arrow to rotate the view until the word Top is horizontally displayed.
01:42
Right-click to open the marking menu again, and select Two Point Rectangle.
01:47
In the graphics window, place the first point at the origin point to start the rectangle, and then move your cursor to the upper right.
01:55
In the dynamic dimensioning boxes, enter 0.12 in for the horizontal value.
02:01
Press TAB, enter 0.5 in for the vertical value, and then press ENTER to create the rectangle.
02:09
Right-click, and from the marking menu, select OK to close the rectangle command.
02:15
Open the marking menu again, and this time, click Create Line.
02:21
Start the line by clicking the top right corner of the rectangle.
02:25
Move your cursor down and to the right.
02:28
In the dynamic dimension box, enter “ArmLength = .7 in” and press TAB.
02:35
This creates a parameter named ArmLength that can be referenced in other dimensions.
02:41
For the angular dimension, enter “ArmAngle = 180-52”.
02:47
This calculates the value for the ArmAngle parameter as 128-degrees.
02:53
Click to complete the line.
02:56
Click on the endpoint of the previous line and drag to create an arc off to the lower left of the last point.
03:04
Then, click the bottom right corner of the rectangle to add a final line segment.
03:09
Right-click, and from the marking menu, select OK to close the line command.
03:14
A critical aspect of sketching is making sure that your geometry is stable.
03:20
Inventor automatically applies some constraints to sketch geometry as you work, and you can also add geometric constraints manually.
03:28
Press and hold CTRL as you right-click the graphics window to open the constraint marking menu.
03:35
Select Tangent.
03:37
A Tangent constraint positions faces, planes, cylinders, spheres, cones, and ruled splines tangent to one another.
03:46
Select the arc and line segment to add a tangent constraint, and then press ESC.
03:51
Open the marking menu again and select General Dimension.
03:57
Select the arc, and then click to place the dimension.
04:01
In the dimension box, type 0.13 in.
04:06
Press ENTER.
04:08
You have now created a 2D sketch using rectangles, lines, and arcs.
04:15
Right-click, and from the marking menu, select Finish 2D Sketch.
