Creo Extrude Tutorial 1: Profile Creation

Part 1: Setup and Initial Extrude

1. On the Desktop > Open Creo Parametric

2. When Creo is opened > a pop-up screen appear Security Alert Pop-Up > Click Yes > Close the Resource Center

Pop-Up screen

Clo se Resource Center Screen

Click Yes

3. Screen Overview

Standard Window Menus: I.E New, Open,

Minimize, Maximize, ETC

Built - In Internet/Computer Navigator Window: This will show the user files on the computer/external hard drives and browse the internet.

Dialogue Box: Provides instructions on what software would like you to select or shows error messages

4. Select New

a. A pop window will open and show different types of drawings the user can create. Listed are the

types of drawings can be created in Creo.

5. Creating a 3D part.

a. Select Part

b. Name the file extrudetutorial

i. File names need to be one string of characters. (NO SPACES)

ii. It is important to provide a consistent filing system for your file names in order to

keep drawings and folders organized. I.E DWG01, DWG02, DWG03, etc. Each

assignment will have two files, it is important to have a filing system in order to keep

these files together because they are dependent upon each other and it is just easier

to find them.

c. Click OK (if an error comes up you check your file name. Remember NO SPACES)

Types of Drawings

1. Sketch : Allows the user to create 2D objects

2. Part : Allows the user to create 3D shapes ( we will be using this a lot )

3. Assembly : Allows users to put multiple Part files together to create a larger object.

4. Drawing : Allows users to layout Part files in orthographic form

5. Format : Allows users to create forms that can be used multiple times. I.E Title Blocks

6. Other Drawing Types will not be used

6. The following screen should appear.

7. Creo Part Basics

a. Datums: Imaginery defined planes, edges, axis, points in space to help define location of a solid model

i. Each part starts with 3 Default Datums (Note: Each datum has 2 dimensons)

1. Right (Dimensions: Height and Depth)

2. Top (Dimensions: Length and Depth)

3. Front (Dimensions: Length and Height)

ii. All parts are predefined in inch scale

Tabs for various operations on the solid model File Name

Model Tree : Shows all of the operations you have created on the solid model.

Workspace : Where the model is being built.

8. Solid Model Navigation Tools

a. Mouse

Left Mouse Button: Selects objects

Roll Bar: Zooms in and out on the model screen.

Hold Down Roll Bar (Middle Mouse Button): Rotates Model

Hold Right Mouse Button Down: Gives pop out menu based on the design tab.

b. Hotkeys

i. a= Autoscale

ii. i= Isometric

iii. d= Turns Datums on and off

9. Various ways to create Solid Models (Note all processes can ADD and Subtract material)

a. Extrusion: Elongating a 2D Closed Profile in a linear distance (Length, Height, or Depth depending on the

orientation of the 2D Closed Profile)

b. Revolve: Rotating a 2D Closed Profile around an axis

c. Sweep: Elongating of a 2D Closed Profile along a user defined path

d. Blend: Connection of multiple profiles that are on parallel datum’s

10. Creating an Extruded Model

a. First step is to create a 2D Closed Profile this is called a Sketch. There are two types to create a Sketch

i. External Sketch: This separates the Sketch and the Extrude operations. We will be avoiding this method.

ii. Internal Sketch: This embeds the Sketch into the Extrude operation. Keeping the Sketch and Extrude

linked. Also called the Parent/Child Relationship.

b. On the Info bar at the top of the screen select the Tab Model > Select the Extrude icon.

c. The Extrude Info Bar

d. Select the Front Datum by either selecting it in the Workspace or in the Model Tree. The information

the Sketch Menu will fill in. (Do not worry about what the rest of it means)

e. The screen should rotate so the datum is perpendicular to your view

Solid Model: Glasses: Extrudes model

as a solid entity. Preview User Defined Distance

Surface: Extrudes profile

as a surface. Makes inside

hollow

Extrusion Types and Distance

1. Blind: User Defined Distance in one direction of the datum

2. Symmetric About Datum: Extrudes model on both sides on datum based on user defined distance

3. Extrude to Surface, Datum, P oint, and Edge: User selects a

Red X: Cancel Operation

Green Check: Finish Operation

Flips Extrusion from one side of the datum to the other

Changes to subtraction of material

Note: 3D Rotation can still occur in the sketch menu. To Return to a 2D State Click on the

f. Info Bar will change to the sketching window. These are the tools you will use to draw your 2D Closed Profile

g. Turn Off Datums by press the D Key. It is helpful to turn off the datums when sketching to avoid any potential

confusion between object lines and datums.

h. When drawing a profile it is recommended to draw in one of the four quadrants. For the first series of parts all

of the profile should be drawn in the 1st Quadrant (Top Right Area of the Graph). Select the Line Tool > starting

at the Origin (center of the screen) > Left Click once to start the line. To set the line Left Click at the endpoint

of the line. Draw a rectangle with the horizontal being longer than the vertical. DO NOT worry about the length

of the lines (length of the line will be adjusted later). Avoid making lines the same length (Symbol L1 will

appear when multiple lines if they are of equal length)

Sketch View: Turns screen from 3D into 2D Perpendicular to selected datum or surface

Reference Tool: Allows user to

select existing edges to snap to

Sketch Setup: Allows user to change

the selected datum and reference

Drawing should look a follows. NOTE: User dimensions DO NOT need to be the same as what is shown yet. Next step

will change the measurements of the object.

Notice the dimensional values are large. The software’s default zoom factor is base on measurements values

that are in millimeters not inches. By creating a rectangle first can help the user frame in their workspace.

Once the shape is closed click the Middle Mouse Button to stop the line and then Middle Mouse Button

(Second Time) to exit out of the line tool. The profile should be shaded in creating a Closed Profile.

Types of Profiles

Closed Profile: Shaded informing on solid shape of geometry. Can be Extruded

Open Profile: Non-Shaded form of geometry. Collection of lines that do not form a shape or have

intersecting lines. Cannot be Extruded

i. Changing Dimension Sizes

i. Blue Dimensions are called Weak Dimensions. Weak Dimensions represent the amount of dimensions

needed in order to create the part without overdimensioning/overconstraining. Weak Dimensions

may or may not change as part changes to meet the geometry constraints.

ii. Gold Dimensions are called Strong Dimensions. Strong Dimensions the user has done one of the

following on the part

1. Changed a Weak Dimensions Value

2. Placed a different dimension other than what is initialing provided by the software

Strong Dimensions are dimensions that lock geometry size into place and can only be adjusted if the

user changes the value.

iii. Change the rectangle dimensions to the following by using the left mouse key and double click on the

value > Type in the value from the worksheet (NOTE: IF the value is 0 places past the decimal then all

that needs to be entered is the whole number (I.E on Drawing Worksheet Dimension of 1.000; only

need to enter 1)) > Hit Enter Key to lock dimension in

j. Changing objects shape

i. Select Line Tool and draw the following two lines. (NOTE: Avoid hitting the midpoint of top horizontal

and right vertical line; a M will appear next to the line when midpoint is hit)

Draw the following

two lines

ii. Trimming the excess lines

1. Delete Segment Icon under Editing. You can either click Left Mouse Key on the line or hold the

Left Mouse Key and drag over the line(s) you want to delete > Middle Mouse Button to

exit from Delete Tool

Part should look as follows

Notice two more dimensions show up and in tutorials case the vertical measurements turned from Strong

Dimension to Weak Dimension. This is because the original connection point was deleted.

iii. Change Weak

iv. Dimension to Strong Dimension without changing the value.

a. Left Click once on the Vertical Dimension > Hold Right Mouse Button > Select

Strong Dimension Icon > Hit Enter Key

k. Change/Setting Dimensions

Two ways to place a linear dimension

- Left Click once on the line you want to place a dimension on and Middle Mouse Button to place

(Be sure to place the cursor off the line before middle mouse button)

- Left Click once on one line then Left Click on a parallel dimension then Middle Mouse Button to place.

Note: If you select two non-parallel lines then an angle dimension will appear.

If you place to many dimensions than error menu will appear. This means you are Over Constrained.

Select one of the options, the option will highlight on the part and hit delete.

a. Select Dimension Tool from the Sketch Tab > Left Click once on the Top Horizontal Line of the

part > Move Cursor above the line and Middle Mouse Button to place dimension; Notice one of the Weak

Dimensions was removed and replaced with the user declared dimension (NOTE: It is recommended to

place dimension away from the part and NOT on it.) > Set the dimensional value to 1.500 > Hit Enter Key

b. Moving Dimension: Left Click once on the dimensional value > Hold Down Left Mouse Button

on Dimensional Value > Drag to desired location > Let go of Left Mouse Button

c. Change and Move the other dimensions as shown

Example Error when

Over constraining or

Over dimensioning occurs

l. Press the letter A to autoscale the screen. This should center and zoom in your part. This will take you from

the Sketch Tab to Model Tab. Reclick on the Sketch Tab

m. Click the Green Check button to accept the sketch profile. (Red X will cancel the profile and delete everything

you have created.)

n. Place cursor on the part > Hold the Middle Mouse Button down > move the mouse to rotate the part.

o. Press i to rotate the part into an Isometric

p. Press a to Autoscale the part

q. In the User Defined Distance in the info bar type in the distance of 4

r. Click the Green Check to complete the Extrude. (Red X will delete the part)

Finished Part

11. Change the View State

a. Click on the Tab View > Click on Display Style Icon > A list will appear >

i. Shading with Edges= Shades objects and makes edges thick so they standout

ii. Shading with Reflections= Gives a rendered image as if a light was shining on the part

iii. Shading = Default, Colors the image and provides minor shading of surfaces to help define orientation

iv. Hidden Line= Shows object lines and hidden lines without solid color

v. No Hidden= Only shows object lines without solid color vi. Wireframe= Shows all lines object

and hidden as solid lines

Try a few of these types out to see what they look like. Rotate the part to see the differences on the object Hotkey

d= Click Letter d to turn off and on datum planes, axis, points, etc.

When finished hit Letter i (Isometric) and a (Autoscale) to reset the object.

SAVE FILE

Complete Parts 1-4. Parts need to be same size as

what is stated on worksheet.

Show Mr Jourden upon completing the parts