Join Gabriel Corbett for an in-depth discussion in this video Linked dimensions and equations, part of Cert Prep: Certified SOLIDWORKS Professional (2015).
- Knowing how to make equations and link to values is one of the most essential skills for taking the CSWP exam. The basic format for the exam is to create a part using some variables and then we're going to modify that part by changing those variables. We're going to remove some components, we're going to add some components, we're going to continually change those variables. So if you don't link your variables, if you don't create the equations, you're going to be doing a lot of extra work. So you're asking me how do we do this and how do we set up correctly? To get started, I'm going to click on 'New.' I'm going to use some of the templates that I provided for you, but you can go ahead and create your own, if you'd like.
I'm going to choose this one called '1020.' Click on 'OK' and now I have a blank document. Now, inside this blank document I have the ability to create equations. I would recommend doing that first. Before we do anything else, though, let's make sure we've got the right material. We do. And click on 'Equations.' Now take a look at this. I've already actually created a bunch of equations for us, just to make it so when we start the part we already have something there we can work from. Now if they're not there, if you're starting from a blank template with nothing in it, no problem, we can create them on the fly.
That's very easy. But like I said, this template I have provided does have some equations already with values in them. They're not, obviously, the right values, but we have an ability to easily change those. So go to 'Equations,' click on 'Manage Equations,' and here are my global variables. Now if I want to create a new global variable, all you need to do is click here, type in something like a Y, and then come over here and type a value of maybe 56. That easily I've created a new global variable. Now if I go over here to my part itself, let's take a look at what those variables are supposed to be.
So "A" is supposed to be 213. Now if you use 'Enter' on my keyboard, I can enter over to here and then to the next value. Two times to get down to there, so this is going to be 200, this is going to be 170, this is going to be 130, and then the "E" value is going to be 41. Then notice down here, I have an "X" and a "Y." For my "X"- I actually already created the "Y," so for "Y," let's go ahead and create an equation here. So it's going to say "B," so I'm going to link to my global variable "B." "B" / 3, I'm just typing this in on the keyboard, + 10.
Click away from there and let's go ahead and create that "X" value. So I'm going to say "X" and that's going to be = "A," so global variable "A" and then we're going to / 3. Just that easily, I've created all my variables right from the beginning, everything's there. Go ahead and click on 'OK.' Now I'm ready to start building my part. When I start using my equations, I'm going to start with a sketch.
Here's a very basic example. I'm going to draw a rectangle and then I'm going to link the value. So the bottom value here, I'm going to say this is equal to- I just clicked on = on my keyboard, and then click on 'Global Variable.' That's going to = "A," and then I click 'OK.' Same thing over here. This value here is going to be = Global Variable "B." Just that quickly I can define this shape and those values based upon those global variables and if I want to change them, it's very easy. Exit out of that, then we're going to modifying this from part to part.
So to get back into it, again, just right click on 'Equations,' 'Manage Equations,' jump in here, adjust the values, click 'OK,' and your part will automatically adjust to the correct size, based upon your new values, as you move through the exam.
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