Join Gabriel Corbett for an in-depth discussion in this video Sweeps and Lofts, part of Cert Prep: Certified SOLIDWORKS Associate.
- In this movie, we're going to be going over lofts and sweeps. To get started, let's look at this loft here. So I've basically just taken the top line and drawn a circle on it. Now, any time we think about it, a loft, we're going to be transitioning from one shape to another. So I need to have at least two sketches, first, before I can start creating that shape. So I have my first sketch here, so I want to go create a new sketch up above this one. So there's no plane there, so that's the first thing I need to do, is go ahead and create a new plane. So let's go up to "Reference Geometry", click on "Plane", and as my first reference, I'm just going to choose that top plane that's already there which is pre-selected here, and then give it a value.
So if I click on this, I can just move this up, and I'm going to choose 90 milimeters. Click "Okay". Now I have a new plane up above that. Choose that plane, and go back to sketch and start a sketch. Now I'm just going to draw one more circle here -- there's my circle -- and then exit out of that sketch. So you can see, I've got one big circle on the bottom, one small circle on the top, and I'm going to transition a shape from one to the other, and that's going to be called a loft. So, go over to "Loft", choose my profile, so "Sketch2", and "Sketch1", there it is.
You can see those come together. Now, keep in mind -- See this little green dot here? Make sure that that lines up the right way so you get a nice shape, because what happens if you get that twisted around, you can get a weird shape, because it's connecting those two dots together. So, let's make sure that those are lined up, and then click on "Okay". So that's the basics for a lofted feature. Now, they can get a lot more complicated than that. You can have multiple sketches and multiple transitions that are going to be going through. But on the exam, I don't see a lot of loft features, more going to be extrude than revolves, but it is very important so you know this just in case they throw a curve ball at us and add a loft or sweep to the exam.
Now, back to the sweep. The sweep is going to be one constant profile that's swept along that path. So you can see here I've got "Sketch1" as just a circle, and then I have "Sketch2" which is kind of this sweeping line here. So, to do a sweep, it's pretty straight-forward. Just click on "Swept Boss/Base". For my profile, I'm going to choose this one down here, and for my path I'm going to choose this one right here. And just that easy, I've created that shape. Now, if that's not what you want to create, you just click on it and click "Delete".
Now, if I wanted to do it the other direction, I could start from this point here, and a quick way to do that is click on the endpoint itself, then hold down "Control", and choose the lines connected to that point, and then click on "Reference Geometry", "Plane". What that does it put a plane on the very end of that. Notice where it is... At that point, on that arc. There it is. Then I can draw or start a new sketch on there. So I'm going to draw a rectangle. You can connect it however you'd like, but there's my rectangle.
And then go back to "Features", exit out of that, and go to "Swept Boss/Base". That's my profile, this is going to be my path. There it is. And just that quickly, I was able to create a different type of sweep, all from the basic same sketch entities. So, those are the profiles and paths that I need to create a shape. There are all types of other things I can do with this command. I can twist it along the path, I can add guide curves, and all kinds of other things, but that's your basics that you're going to need to know.
Along the way, he'll cover creating effective sketches, using equations to modify parts, weighing parts, building assemblies, assigning the correct materials and units, and creating drawing views. At the end of the course, there are two sample exams to practice what you've learned.
- CSWA requirements review
- Working with sketch entities (Line, Circle, Rectangle, and Arc)
- Making offset, convert, and construction lines
- Reviewing the boss and cut features
- Sweeps and lofts
- Smoothing corners with Fillet and Chamfer
- Creating linear and circular patterns
- Dimensioning techniques
- Setting mass properties
- Selecting and using materials
- Inserting components
- Setting up reference geometry
- Establishing standard drawing views
- Annotating your drawings