Creo Extrude Tutorial 3: Hole, Fillets and Rounds

By: Matthew Jourden

Brighton High School

1. Open Creo Parametric

2. File > Open > extrudetutorial (From Creo Extrude Tutorial 1)

3. Optional: Remove Color a. If image has color like the following and color would like to be removed

b. Select Render Tab > Click down arrow below Appearance Gallery > Select Clear Appearances > Clear All Appaearnces > Yes (This will turn the part back to default grey)

NOTE: Minimum of 2 other extrudes were added to this part. NOTE: Color may have been added to the part as well. See the following steps to remove color

4. Suppress Features: suppressed features will hide the feature on the part without deleting it.

This allows the user to hide a feature(s)

a. Select the Features user created from Tutorial 2 > Right Mouse Button; Select Suppress > Feature will disappear from the model tree. (NOTE: Include Extrude 2, 3 and the other extrudes created by the user) NOTE: Any features that reference the suppressed feature will also suppress

b. Showing suppressed features on Model Tree

Select Settings Menu from the Model Tree (Icon > Check

Suppressed Features from pop up menu > Click OK

Check Suppressed Objects

c. Suppress all features except for Extrude 1 d. Suppressed objects will appear and have a Black Box Next to the

Feature Type. e. To unsuppress object Right Mouse Button on Feature > Select

Resume.

4. Reference: Dimension Values for Arced Shapes

a. Holes will need 3 Dimensions i. 2 Locators: Measuring from an Edge to the Center of the Hole ii. Leader Line showing Diameter of Hole

Diameter NOTE: Two arrowheads represent a diameter dimension.

Locators

Single Arrowhead represents radius (See Below)

b. Fillets and Rounds: Measured in radius i. Fillets = Inside Edges (Adds material from on a corner) ii. Rounds = Exterior Edges (Subtracts material from on a corner)

Fillet

Round

5. Creating a Hole

Two methods to creating a Simple hole

i. Extrude ii. Hole Tool

a. Hole Creation: Extrude Tool iii. Select Extrude > Select the shown surface

iv. Select Circle Tool > Draw Circle on the surface > Notice the software provides locators

and diameter. Locators should always measure to the center of a hole for accuracy

purposes. Software will allow user to create a dimension tangent to the edge of a

circle. Avoid this at all times. To ensure dimensions goes to the center of a hole Select

the Center Point of the hole (NOT the edge). > Set the dimensions as shown

v. Green Check the Sketch > Set Extrude distance to .500

vi. Select Flip to send the extrude distance into the part

cutting material

b. Hole Creation: Hole Tool

i. Select Model Tab > Select Hole Tool > Select same surface as the Extrude Hole

Adjust Diameter.

Can also select the dimensional value to type in

desired size. Can also adjust

size in the Hole Info Bar

Adjust Height of Hole.

Can also select the

dimensional value to type in

desired size. Can also adjust

size in the Hole Info Bar

Green Anchors set the locators for the hole.

Set them in the following Locations. Hold Left Mouse Button on Green Anchor > Drag to edge to be measured from.

To change Double Click on Values to change dimensional Vale

Creates Counterbore and

Thread Countersink Holes

Representation

Diameter of Simple hole

Hole

Height of Hole

Adjust Locator Dimensions

ii. Set Hole Dimensions to the following

iii. Green Check to set hole c. Add a hole in the following location use Hole or Extrude Tool

6. Creating Fillets and Rounds

a. Select Model Tab > Select Round Tool (NOTE: Round Tool will create Rounds and Fillets.)

Radius of Arc

Groups Edges

together for same

radius size.

Hold CTRL Key to

have edges part of

the same SET

b. Select the following Edges (Green Edges) with a Radius of .375 (Hold Control (CTRL) Key while selecting

c. Start a New set i. Select “New Set” from Set Menu in Round Info Bar

ii. Let Go of Control (CTRL) Key select an edge and repress Control (CTRL)

Key to group other edge with the new Set.

iii. Select the following Edge (Green Edge) with a Radius of .25

Save File

6. Creating an Arc Feature a. Select Extrude > Select Bottom Surface of Part

Reference Edges

Bottom Surface of Part

Using Line Tool Draw a Line on this Edge from End Point to Endpoint

b. Draw a Line Shown below from point to point > Select Line > Right Mouse Button Select Construction

Construction Line creates a line that is for Reference based on a Line Drawn. This line will not print or be part of the closed profile.

Draw a line connecting these two points > Right Mouse Button > Construction

c. Select Circle Tool > Place Cursor at the Midpoint (An M should appear) of the construction Line > Left Click and

Place Cursor to the endpoint of the part (This will form a tangent point (circle and a line share one point)) Creating a arc/circle that is the same size as the part. NOTE: This scenario the diameter of the circle does not need to be stated since we used the reference lines as the end points of the circle/arc

a. Option 1: Leave the full circle and extrude material inside of material

b. Option 2: Cut the circle/Arc into the desired number of degrees.

Mid-Point of Construction Line

d. Green Check > Set Extrude distance to 1.00 > Make sure the material is adding up into the part.

NOTE: If the Back Arc Fills in the Hole on the side; there are two options to fix it Option 1: Cut the Back Arc in half so it only extrudes solid material into air (See Option 2 from previous page when building arc) Option 2: Reorder Model Tree: by Holding Left mouse key and dragging the Extrude for the arc above the extrude/hole tool for the hole

Notice how the arc fills in the hole: Chose Option 1 from above

Select Feature that is the arc Hold Left Mouse Key to drag Arc above the hole feature

Let go of Left mouse button to place feature

Completed Part

Save Part Design Solid Model 11, 12, and 13