Download and open FeatureEditBlock.ipt

This block has a number of Extrusions and Features that can be edited. As you move your cursor down the list of features in the Browser, notice how those features are highlighted on the part.

Editing Sketches

First, let’s edit the base dimensions. That is Extrusion 1 in the Browser.  Right click on Extrusion 1 and choose Edit Sketch.

Notice that the entire solid seems to have disappeared, leaving only the initial Sketch of the base visible.  Most of the Browser is grayed out with the exception of Sketch 1 – indicating that Sketch 1 is the Active Sketch and can be edited.

The base was a square with sides of 2 inches each.  Double Click on the 2 and change it to 2.5 inches.

Click the green checkmark to finish the sketch, your changes will appear.

 Now let’s edit Extrusion 2, so that the cylinders move back to the center of the block.  Repeat the steps listed above, in the Browser:

Right click on Extrusion 2 > Edit Sketch.

Without changing the size of the circle, center the circle on the block by changing the dimensions.  You will need to determine how to center this on your own!

Click . Notice that the cylinders shifted, but the Holes around the base cylinder did not. (This is due to the way that the original block was built and dimensioned.)

Let’s move the Holes back onto the large diameter cylinder.  These Holes were made in 2 parts.  First, a Hole was made and then a Circular Pattern was used to repeat the Hole Feature around the base cylinder.  If we edit the placement of the original Hole, the others will also shift.

Right Click on Hole 2 in the Browser and choose Edit Sketch.  Make the changes noted in in the image to the right.

When you click the green check, all the holes have been moved back into position.

Editing Features

Editing features will allow you to change the 3D operation that you applied to the part (extrude, revolve, sweep, loft, etc.).

Let’s change the number of holes in the Circular Array.  This is a Feature Edit as compared to a Sketch Edit like those we just completed.  Right click, in the Browser on , and choose Edit Feature.

Change the Count from 7 to 10. 

Right-click on Extrusion 3, click Edit Feature.  

Change the extrusion height to .5"

Click OK.

Our final edit will be the Counterbore Holes.  Right click on Hole 3 in the Browser and Edit Feature. The Hole dialog box appears.  Change the Counterbore Depth to .125 inches, as shown to the right.

Save as "Feature Sketch Edit Part 1"