Join Gabriel Corbett for an in-depth discussion in this video Equations, part of Cert Prep: Certified SOLIDWORKS Professional (2015).
- Equations is one of those skills that's going to make it very easy for us to transition our part from question to question in the exam. To get started with equations, we want to make sure we've got a couple things turned on inside of SOLIDWORKS. Over here on the left, you can see I have a folder called "Equations." That might not be showing up on your computer so let's make sure that it does. Go up to the top, right-click, click on "Hidden Tree Items," and then click on "Hide/Show Tree Items." You can see I have one called "Equations" here, and I have it by default showing, but you might have it as Automatic or Hidden, so make sure it says "Show" there, and then click "OK." Then I can right-click on my Equations.
Click on "Manage Equations" and I'll get the "Equation Editor" that pops up here. I also have the option to add a toolbar here. So you can see over here on the right hand side I have a toolbar, and there is the Equations tab, so it just jumps right into there. So an easy way to turn that on is right-click anywhere up here in the grey space, and come down to tools and turn on that toolbar. That way you'll have these buttons available to use as well. We're also going to be using the "Weigh" or "Mass Properties" button quite a bit, so it's nice and handy to have it. It's also available under "Evaluate," for "Mass Properties," right here, So, "Equations" and "Mass Properties," again, are going to be used all of the time.
So to get started with Equations, let's go ahead and click on the "Equation Editor." Now notice I have global variables up here, so I can click and add a variable, so I can say "a," and then it's going to ask me what it's going to be equal to, so I can say 80, and now I have a variable. So as soon as I click "OK," go to the next one, it's going to allow me to add another one, so I can say "b," and I can say, let's say it's 152, and do the same thing over here, click, and then "c," is going to be 42, for instance.
Alright, just that easily I've added these global variables and then I can use them in my part, so a lot of times when you're starting with a new part or a new question, I can create my variables first, and then I can go ahead and design a part around them. So I'm going to start a sketch and just go ahead and draw a rectangle out. Here's my rectangle and then define a few lengths. As you see here, I have a dimension I'm going to add, and instead of typing a dimension here, I'm just going to say "Equal to," and as soon as I click on the Equals button on my keyboard, notice I get "Global Variables," "Functions," and "File Properties," so I can link to anyone of those things, and notice I've already defined that "a," "b," and "c" value so I can just click on "a," and click "OK" and it just links those two together, so that's now controlled by that equation. Now, over here on the right-hand side, I can do the exact same thing, as soon as I click on equal, I can choose one of those global variables that I've already created, or, I can create a new one. So let's try "d." Equal to "d," and notice as soon as I choose "d," it gives me this little pop-up icon that says "Create a Global Variable," so yes, I would like to do that, and I'm going to make that one 50, and then click "OK." So now it's also a global variable, and I've created a completely different way right in context of creating the sketch. So I'm going to exit out of there, and then take a look at my equations. So you can see, just that easily, I created "d" as well. So you can do it either way, creating them ahead of time, or creating them on the fly. Either way, I get all of my global variables set up right here, and then I can use them in the parts and link everything together, and then If I want to modify the part, all I need to do is go ahead open up this dialogue box, change a few of the values, click on "OK," click on "Rebuild," and my part automatically updates.
So that's the key components for using Equations in your designs. It makes it much, much faster to transition from part to part.
He also breaks down the three segments of the test (part modeling, configurations, and assemblies), providing strategies that will help you pass each section. At the end of the course, there are two sample exams to practice what you've learned.
- CSWP requirements review
- Working with sketch entities, tools, and relations
- Using the boss and cut features
- Performing sweeps and lofts
- Smoothing corners with Fillet and Chamfer
- Creating linear and circular patterns
- Setting up equations
- Creating multibody parts
- Setting mass properties
- Working with materials and constraints
- Inserting components
- Setting up reference geometry
- Arranging features to change the part
- Working with suppression states
- Using a design table to build configurations
- Establishing standard drawing views
- Annotating your drawings