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Okay, let's get started and build our very first part. First things first, we need to choose a face or a plane to start drawing on. When you first open a new model there's no faces, you only have these planes and you have these three fundamental planes shown here. You have the front plane, the right plane and the top plane. You want to think of those. Similar to the real world. The top plane might be the top of your desk, or the ground. The front plane might be a wall in front of you, and the right plane might be something on the right-hand side of you. So when you're building something, think through how those things would actually be built. If you're going to build, for instance, like a stand for something, you might start with the top plane, so the stand would be mounted to the ground, and then you might design something on the front plane that would be something that would be standing up in front of you.
So think through that, because when you start putting things together in an assembly, all those orientations will automatically be coming in. And if they're oriented a different way it might make it a little more difficult to put everything together. It's not really that big of a concern becuase you can always rotate things in the assembly level, but to get started I generally like to choose the top plane or the front plane for my models. So notice as I hover over the outside edge of the planes they highlight in orange. I want to use the top plane, so I click on that plane. Notice it highlights. It's got these little spheres in the corner that I can drag around if I need to.
But those are really just markers showing you were the plane is. And when I am ready to get started I can click on sketch here or I can go up here to the sketch tab on the ribbon bar and click Sketch. Or even here on the top plane, I can left-click and click on Sketch. So any one of those three methods will quickly get into a sketch mode and as soon as I click on that, watch what happens. It spins around, so I'm looking straight down on that plane and I'm ready to get started with my sketch. Notice they've got all these other different planes shown. Sometimes that's a little bit distracting. So what you might want to do is go over here to the different planes. And hide the planes you're not seeing or using.
So you're not being confused. Now you have a blank work environment starting with just the origin in the middle of your screen. Now we're going to cover a few tools here. I'm going to show or demonstrate a couple of the tools. And we're going to be covering those in future chapters. But first, I just want to go through the steps of actually creating our very first model. So in this case here I'm going to use the rectangle tool. It's a center point rectangle. I'm going to start at the origin. I'm going to drag it out. There it is. It automatically adds relationships which we'll be covering soon. And I come up here to smart dimension. I'm going to add a couple dimensions. I'm going to say, this is six inches, 6.0, and over here it's going to be four inches, so 4.0.
And notice as I do that. All the lines turn black, which means they're fully defined, and again we'll be covering that soon. And, as soon as I'm happy with this, I can either go to exit sketch here, or I can jump right into a feature. So features are going to be like extrude. Choose extrude and notice it turns me into a 3D space, and I can grab this little arrow and I can drag it up, see my part. And as I do that, notice it gets little heads up. Measuring tape that pops up and it shows me exactly how long these parts are. Or, I can just come over the left, type in the number I want, 3.0.
And there's the number. Now I have a couple of other options, here. I can look at going in a different direction, or I can change it to a thin feature. But for right now, let's just get started with the most very basic, basic extrude, and create a block. When you're happy with that, click on the green check mark here, or the one over here. And there's our very first 3D part model in Solidworks. Spin it around, so just to review, first you choose a face or a plane. You start a sketch, draw the sketch then click on Features and go to Extrude.
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