Catia v4 help pdf

Repeat the same process described in Line 1 Steps 8, except use 1,1 as the Start Point and 2,1 1,1 as the Ending Point. This will create the bottom Line 2 horizontal line as shown in Figure 1. Double clicking on the Line icon will allow you to create multiple lines without being required to repeatedly select the Line icon. With the Line icon double clicked, create line 3, Start Point 2,1.

The End Point for line 3 is 2,1. Double clicking on the Line icon still requires you to select a Start Point and an End Point every time, but you will not have select the Line icon for every line. Note: If you make a mistake when creating one of the lines you can use the Undo icon. The Undo icon is located at the bottom of the screen. The Undo tool allows you to undo multiple steps. Another option to a mistake is deleting it. This can be done using the Cut icon also located at the bottom of the screen.

Highlight the entity to be deleted then select the Cut icon. The Profile. The connected lines will continue to be created with every point selected until you double click.

Double clicking the Ending Point will end the Profile command. The lines created are separate entities, but the command that created them is recognized as one, so if you select the Undo command all the lines created in one Profile operation will be undone. Create lines 4, 5 and 6 by selecting the following coordinates in succession, select 2,1. The finished profile should look like Figure 1. NOTE: This particular exercise does not require any features with radii but the Profile tool has the ability to create them.

Instead of selecting an End Point and a Starting Point for line creation, select the point where the arc is to begin , hold down the left mouse button and drag it away from the starting point, then release the mouse button. You will notice as you drag the mouse button around the arc radius and location change. Move the mouse around to where you get the radius you want then select that point on the screen.

Steps 12 through 16 give instruction on how to use additional tools to modify the entities you have created. In this step you will learn how to break a line. Step 13 will instruct you on how to trim line 6 back to line1. To break line 6, simply select the Break icon from the Operation tool bar.

Select line 6 as shown in Figure 1. The line will highlight then select a location on the line where you want the line broken. For the purpose of this lesson select approximately three Graduation lines from the left end point Figure 1.

The line is now broken. The easiest way to verify this is to select the broken line, only one of the two line segments will highlight. Select the Measure icon then select apply to the line you want to measure. This would tell you how long the selected broken line is. Select the left line Figure 1. It will highlight, now select the scissors located at the bottom left of the screen. The highlighted line will disappear Figure 1.

You could also select the Cut command from the top pull down menu under Edit or hit the Delete key. This deleting erase process is similar in all windows functions Select here and applies to any entity you want to delete as long as it is highlighted.

Extending line 6 past line 1 does not close the profile properly. If you were to exit Sketcher Work Bench at this point and try to extrude the profile you would get an error, because line 6 is over running line 1.

To fix this problem select the Trim icon and select line 6 on the right side of line 1. Now select line 1, line 6 is automatically trimmed to the second line selected. See Figure 1. This tool modifies existing entities; in this case it will put a specified radius in the place of a square corner.

The following instructions step you through the process of creating corners fillets. Your part should now look similar to the part shown in Figure 1. If your radius dimension does not match the one shown below it is ok, it will be modified later. The value is the radius of the corner you just created. Step 19 modifying constraints will supply us with the tools to make this radius exact.

This is a two dimensional corner. Lesson 2 will explain another method of creating a corner using a Part Design Work Bench. This procedure assumes you know what a chamfer is. The steps required to create a chamfer are almost identical to creating a corner. The length of the chamfer will shrink as you move it back towards the intersection.

If you move the mouse to the top left quadrant you will notice the chamfer also moves to that quadrant.

For this lesson use the bottom left quadrant. NOTE: The chamfer has two green colored dimensions attached to it. Both dimensions have values attached to them. One dimension is the chamfer length and the other is the chamfer angle. Reference Step 19 modifying constraints on how to modify the values to exactly what you require for your chamfer.

This chamfer is a two dimensional entity. Lesson 2 also explains a method of creating chamfers on three-dimensional entities, using a Part Design Work Bench.

As you select the line hold the mouse button down, now drag the mouse up. Notice that the entire profile expands and contracts as you drag the mouse button around. All the other lines can be modified in position, length and angle.

You cannot modify the location of lines 1 and 2 because they are linked to Point. The green dimension lines that were created with Point. It is the constraint values that tie Point. Constraints are restrictions on one entity to another entity. The Anchor tool restricts the entities movement in relationship to the coordinate location only.

Line 1 and 2 are not truly anchored because the constraint is tied to their relationship to Point. The effect is the same, line 1 and 2 can not be moved. If you want to constrain the location of an entity without constraining any other entity the Anchor tool is a good option. You can restrict line 6 by Anchoring it. Elements can be anchored by completing the following steps. For this lesson select line 6. This will bring up the Constraint Definition pop up window.

For this lesson select the Fix constraint. Notice that line 6 will turn green meaning that it is constrained and the Anchor icon also shows up on the line, this signifies what kind of constraint is applied Figure 1. Allowing the quick and sometimes uncontrolled modification to a sketch can be a Figure 1.

As the design nears completion the ideas are being locked down, there are fewer variables. As variables become known constants you can constrain them. The purpose of this step was to give you a brief introduction to how CATIA V5 allows you to move and modify the sketched entities. It also introduces you to how to constrain the entities. The only way to fully understand all the tools available to you is to test them yourself. Step 18 covers constraints in more detail.

One reason is that you or any one else could accidentally select a line and move it out of position, as you experienced in Step Constraints keep the required relationships between the Sketcher entities that make up the profile. Hopefully this step will convince you that constraints can be a powerful tool. You have already applied a constraint and may not even know it. The Anchor icon in Step 17 is a constraint. The values attached to the Chamfer and Corner are constraints.

To apply Dimensional Constraints complete the following steps: This will bring up the Constraint Definition pop up window shown in Figure 1. This window shows the existing value for the Sketcher element. This value can be edited by typing the new value over the existing value.

Then select OK or hit the Enter key. The entity linked to the constraint will automatically be updated to the new value. If the constraint is between Figure 1. The constraint value will appear near the constraint.

To move the constraint value, follow Steps Once you select the Auto Constraint icon a pop up window comes up prompting you to select which entities you want to constrain Figure 1. You can select one entity at a time, multi-select or select only a few specific entities that you want constrained.

After making your selection select OK, located at the bottom of the pop up window. The entities selected will show up in green with the constraint value box. Getting complete control of this tool will take some practice and patience. A Constraints Definition box will pop up Figure 1. The box will contain all the possible constraints but not all will be selectable.

The only selectable constraints are the ones that apply to the entities selected. For example, if you selected Figure 1. Relationships between entities can also be established using this tool. This is a windows multi-select task, which is accomplished by, holding down the CTRL key while selecting both lines. Both lines will highlight. This is a very helpful tool but be aware you may not always end up with what you started with. Remember, entities will not always stay attached as other entity values change.

CATIA V5 will remember the relationships the different entities have with each other, if they were created with a relationship.

For example, if the end point of one line is the same as the start point of another line it does not mean there is any relationship between the two lines. To use this tool follow the steps listed below: This will start the animation from the starting limit to the ending limit. The Animate Constraint window has other options that you can test. Notice: If your profile has entities created without relationship to other entities the Rewind button could result in a different profile than what you started with.

It can help you visualize the change. It allows you to visualize without committing to a particular value. Your profile updates automatically. Select the More button to get detailed constraint information. Double click on the constraint on the bottom line of the base leg.

From the Constraint Definition window select the More button. The pop up window gives you information on other entities the selected constraint is connected linked to. It gives you the opportunity to change the name of the constraint that shows up on the Specification Tree.

It is possible to over constrain a profile in Sketcher Work Bench. The two constraints can be correct individually but collectively have conflicting values. Purple is the default color for over constrained sketches. Remember an over constraint condition is not a good thing. The easiest way to get out of the over constrained condition is to Undo or Cut the last constraint created, the constraint that caused the over constrained condition.

You must reconsider which constraints are necessary to accomplish what you want. If your profile is not over constrained, you are ready to move on to the next step.

If the instructions were followed an over constrained condition will not exist. As a reminder the following conditions will not allow you to successfully extrude your profile once out of the Sketcher Work Bench.

Notice the profile has a gap in it. Notice there is a line not attached to any other entity, it is floating.

Notice both profiles are closed profiles but there are two of them. The two profiles have to be separate sketches. Notice this example shows that one line is being dimensioned two different ways. The Exit icon is located in the top right of the Sketcher Work Bench. The Sketcher Work Bench grid disappears. The tools on the right hand tool bar will change, as shown in Figure 1. The only tools available for your use at this time are Pad, Shaft, Rib and Loft.

The Pad tool is covered in Step 22 and Lesson 2. The next step will tell you how to use the PAD tool. If your screen looks similar to Figure 1. This is where you find out if there are any problems with your profile sketch created in the Sketcher Work Bench. If it is not still highlighted, select the profile or select the Sketch branch from the Specification Tree. When the profile is highlighted you can select the Pad icon.

This will bring the Pad Definition window up Figure 1. As the Pad Definition window pops up you should notice your profile becomes 3 dimensional. At this point you can specify how long to extrude the profile. You can type it in or select the up arrow and watch the part grow.

Select the down arrow and watch it shrink. If these are not enough options you can select the More button in the Pad Definition window Figure 1. The More button will let you specify the start location First Limit: and the ending plane Second Limit: of the profile being extruded. The More button will allow you to select an extruded direction other than the default direction, which would be normal to the sketch plane.

If you are not satisfied with the result select the Cancel button. If you are satisfied select the Ok button. The Ok button will create a three dimensional part from your sketch.

Your extrusion should look like Figure 1. Before saving and exiting make sure you have finished all operations you have started. CATAPart extension. The extension is automatic. What is the definition of a constraint? What is meant by an unclosed profile? Can an unclosed profile be extruded? What does anchoring the profile do in the Sketcher Work Bench?

How many different ways can you select the XY plane? Explain how you would change the Sketcher units of measurements from mm to inches. The Sketcher Grid is made up of two different entities, one is the Primary Spacing, name the other? What is the advantage of constraining a profile in the Sketcher Work Bench? How do you modify a constraint?

Is it a good thing to over constrain a profile? Explain your answer to question How can you view all the default tool bars in Sketcher Work Bench? The actual process of extruding a profile adds what branch to the Specification Tree?

List as many types of constraints as you can. Catia v5 Advance Design and Analysis tutorials. Currently, he is working in the sheet metal industry as a designer. Additionally, he has interested in Product Design, Animation, and Project design. He also likes to write articles related to the mechanical engineering field and tries to motivate other mechanical engineering students by his innovative project ideas, design, models and videos. Your email address will not be published.

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