Pro/Engineer Short Course Michael Greminger October 1, 2002 Starting Pro/Engineer The first thing that we will do is to create a directory where we will store the files we will create in this tutorial. The following command will create this directory: mkdir proe_tutorial Now we need to move to the directory we just created with the following command: cd proe_tutorial Now we can go ahead and run Pro/Engineer by issuing the following two commands: module add proe proe Creating the Pencil Eraser 1. Create a new part • File→New... – Enter eraser for the name of the part. – Click Ok Button Notice that when you create a new part Pro/Engineer creates a default set of reference planes called Top, Front, and Right. These three planes are mutually orthogonal and will be refered to as datumn planes by Pro/Engineer and this tutorial. These datumn planes are used to place the part in 3D space. It is also important to note that each of the datumn planes have two distinct sides. One side is yellow (the side you are seeing now) and the other side is red. The importance of the red and yellow sides of the datumn planes will become clear later. 1
Transcript
Pro/Engineer Short Course
Michael Greminger
October 1, 2002
Starting Pro/Engineer
The first thing that we will do is to create a directory where we will store thefiles we will create in this tutorial. The following command will create thisdirectory:
mkdir proe_tutorial
Now we need to move to the directory we just created with the followingcommand:
cd proe_tutorial
Now we can go ahead and run Pro/Engineer by issuing the following twocommands:
module add proe
proe
Creating the Pencil Eraser
1. Create a new part
• File→New...
– Enter eraser for the name of the part.
– Click Ok Button
Notice that when you create a new part Pro/Engineer creates a defaultset of reference planes called Top, Front, and Right. These three planesare mutually orthogonal and will be refered to as datumn planes byPro/Engineer and this tutorial. These datumn planes are used to placethe part in 3D space.
It is also important to note that each of the datumn planes have twodistinct sides. One side is yellow (the side you are seeing now) and theother side is red. The importance of the red and yellow sides of the datumnplanes will become clear later.
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2. Extrude the Shape of the eraser
The eraser we will create consists of an extruded cylinder. We will createthis cylinder by drawing a circle and sweeping this circle along a straightline.
– Select the Front datumn plane. This datumn plane will be theplane that the circle will be drawn on.
• Click Ok for the indicated direction
• Click Top
– Select Top datumn plane.
Pro/Engineer is now in sketcher mode. Sketcher mode is the 2Dmode where we will draw the circle which will be the cross section ofthe cylinder. Notice that we are looking at the Front datumn planeand that the yellow side of the Top datumn plane is pointing up.Pro/Engineer by default chooses the Top and Right datumn planesas references as indicated by the References dialog box.
• Click on the circle icon on the sketcher toolbar
– Click where the Top and Right datumn planes cross
– Move the mouse to create the circle and then click the left mousebutton again to complete the circle
Notice that by default, Pro/Engineer creates a diameter dimensionfor the circle.
• Click on the Modify icon on the sketcher toolbar
– Click on the diameter dimension
– Change the diameter dimension to 0.3
• Click on the Check mark icon on the sketcher toolbar to signifythat the sketch is complete
• (blind)→Done
• Enter 0.5 for the length of the eraser
• click ok in Protrusion:Extrude dialog box
3. Save the eraser part
• File→Save...
• eraser.prt will appear, hit the enter key to save the part
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Viewing the Eraser Model
Now that the eraser model is complete, we will go over some of the options thatPro/Engineer provides for viewing this model. The mouse can be used to zoomin and out, rotate and pan the 3D model.
• Control key + Left mouse button will zoom in and out
• Control key + Middle mouse button will rotate the model
• Control key + Right mouse button will pan the model
Pro/Engineer also provides different view modes depending on which viewmode icon is selected on the main Pro/Engineer toolbar.
• The icon will display the model in wire-frame mode
• The icon will display the model in hidden-line mode with hidden linesshown lighter than other lines
• The icon will display the model in no-hidden-line mode where all ofthe hidden lines are removed
• Click on the line icon on the sketcher tool bar.
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Figure 1: Hexagon for the cross section of the pencil
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– Sketch a hexagon as shown in Figure 1. Click the left mousebutton to start drawing the hexagon and click the middle mousebutton to stop drawing the hexagon. In other words click theleft mouse button for each vertex of the hexagon and when thehexagon is completed click the middle mouse button to stopdrawing. Draw the hexagon as it was drawn in Figure 1, withtwo of the vertices placed on the datumn plane labeled Top.
• Now we need to tell Pro/Engineer that we want all of the sides ofthe hexagon to be of equal length. To do this, we first click on the
Add Constraints icon located on the sketcher toolbar.
– Click on the Equals sign icon in the Constraints dialog to indicatethat we want to constrain sides to be equal in length.
– Choose one side of the hexagon. It can be any side, but thisis going to be the side that you set all of the other sides equalto. Click on the side you chose and then click on another sideof the hexagon. You will notice that both of the sides now haveL1 beside them. This L1 is how Pro/Engineer shows that it isconstraining the two sides to be of equal length. Now click onthe side you chose and one of the remaining sides without an L1beside it until all of the sides have L1 beside them.
• Now we need to specify the interior angles of the hexagon. To do thiswe need to create an angle dimension. Start by selecting the create
dimension icon .
– Click on two consecutive sides of the hexagon
– Click with the middle mouse button to place the dimension
• Click on the Modify icon on the sketcher tool bar
– Click on the angle dimension you just created
– Change its value to 120
• Click on the Modify icon again
– There will be a dimension generated by Pro/Engineer from oneof the vertices of the hexagon to the datumn plane labeled right.Click on this dimension.
– Change its value to 0.1
• Click on the Modify icon again
– There will be a dimension geneated by Pro/Engineer for thelength of one of the sides of the hexagon. Click on this dimension.
– Change its value to 0.2
• Click on the Check Mark icon to signify that the sketch is com-pleted
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• (Blind)→Done
• Enter 5 for the length of the protrusion
• Click Ok in the Protrusion:Extrude dialog box
3. Create the point of the pencil
Up until now we have only added material to the solid model. Now wewill remove material to create the tip of the pencil.
• Feature→Create→(Solid)→Cut→Revolve→(Solid)→Done
• (One Side)→Done
• (Setup New)→(Plane)
– Select Datumn plane labeled Top. This is the plane where wewill sketch the material to remove for the revolved cut.
• Click Okay for the direction indicated
• Click Top
– Select Datumn plane labeled Right. The yellow side of this da-tumn plane will face the top of the screen when we are in sketchermode.
• We are now in sketcher mode. The first thing that needs to be donewhen doing a revolution in Pro/Engineer is to define the center lineof the revolution (in other words, the axis about which Pro/Engineerwill revolve the area).
To create a centerline, first click on the arrow to the right of the Line
icon and then click on the Centerline icon
– We will create the centerline along the datumn plane labeledRight. To create the centerline, click on datumn right at twolocations on oposite sides of the screen.
• Next, we need to define the area we are to remove to form the pointof the pencil. This area will be a triangular area as shown in Figure 2
The begin drawing this area, click on the line icon (you may needto click on the arrow to the right of the now active centerline icon
to get to the line icon.)
– Draw the triangular region as shown in Figure 2, making sure toput all of the triangle vertices on the boundaries of the pencil.
– When prompted to align highlighted entities, click Ok. Pro/Engineeris simply confirming that you intended to place the triangle ver-tices directly on the boundaries of the pencil.
• Pro/Engineering should have created one dimension in the horizontaldirection. Change the value of this dimension to 0.75 in by clicking
on the modify icon .
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Figure 2: Triangle to remove to create the point of the pencil
• To signify the sketch is completed, click on the check mark icon .
• There should now be a red arrow facing the inside the triangle youjust created. This arrow indicates the region of material that will beremoved by the cut operation. Since we want to remove the materialwithin the triangle, click Ok to continue.
• Click 360 since we want to revolve the cut all the way around thepencil, then click Done
• Click Ok the the Cut:Revolve dialog box.
4. Round the end of the pencil opposite of the point
We will again be making a revolved cut on the pencil. This cut willround the end of the pencil where the eraser is attached.
• Feature→Create→(Solid)→Cut→Revolve→(Solid)→Done
• (One Side)→Done
• Click Use Prev because we will be using the same sketcher view aswe used in the previous cut, then click Ok
• Again, create a centerline along the datumn plane called Right
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Figure 3: Rectangular region to be removed from pencil
• Draw the retangular region that will be removed, as shown in Fig-ure 3. Align one side of the rectangle to the top of the pencil, andthe other side of the rectangle to the right side end of the pencil, asshown in the Figure.
• When prompted to align highlighted entities, click ok.
• We now need to align the rectangle with the end of the pencil. First
click on the constraint icon in the sketcher tool bar.
– Click on the align icon in the Cosntraints dialog.
– Select one one of the rectangle vertices that you want to align tothe end of the pencil.
– Select the end of the pencil to align the vertex you just selectedto the end of the pencil
• Pro/Engineer by default created two dimensions for the rectangle.We will add a dimension for the radius of the cut. First click on the
dimension icon .
– As shown in Figure 4, click on the edge of the rectangle that saysfirst click.
– Click on the center line where Figure 2 says Second Click
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Figure 4: Creating radius dimension
– Click the middle mouse button to place the radius dimension
• Change the radius dimension you just created to 0.15
• There is one other dimension for the length of the cut, change thisdimension to 0.4
• Click on the check mark icon to signify that the sketch is done.
• Click Ok to indicate that you want to remove the area within therectangle.
• Click 360 since we want to revolve the cut all the way around thepencil
