Step 7.0: Why use a Design-Set; The Design Objective

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Step 7.0: Why use a Design-Set; The Design Objective

The Design Objective


Open the model from Tutorial 6A.1

Save the model as 7-A

What is the Design Objective?

The design objectives are:

1.The Pressure Angle must be less than ±30º  

2.The radius of the cam must be less than 100mm but more than 50mm

3.The position of the Cam-Shaft can move within Minimum and Maximum Limits.

Why use Design-Sets?

Let us imagine a design objective: Improve the pressure-angle between a cam and cam-follower roller.

If we do NOT use a Design-Set, you must:

1.Edit a Part...edit a dimension...close the Part-Editor...

2.Review the design objective - has it improved?

3.Edit a FB...edit a parameter...close the FB dialog-box...

4.Review the design objective - has it improved?

Repeat 1 to 4 again, and again, and again, ...

If we do use a Design-Set, you can:

1.Add to the Design-Set all of those dimensions and parameters that you believe can improve or influence the design objective.

2.Edit the dimensions and parameters within the Design-Set

3.... watch the design objective change (e.g. in a Graph FB) as you edit the dimensions and parameters

The Power of a Design-Set:

1.The effect on a design objective as you edit dimensions and parameters is immediate, and...

2.... the sensitivity of the design objective to each dimension and parameter is much easier to understand

3.... it is very convenient.

It is much easier for you, and for others who may need to update the model, in the future.

If you rename each Dimension and also the Design-Set FB, it is even easier to update the model in the future.

To show the name of each Function-Block in the graphic-area see:

Edit menu > Application-Settings > Graphics tab > Display Options > Display Function-Block names.