Learn about using the trim surface tools in SOLIDWORKS.
- [Instructor] In this example, we're going to be looking at trimming a surface. Now, you can see on the screen, we've got a picture of the mouse that we've been working with. And you can see here, we've got this surface here. And I'd like to trim this surface, so it kind of starts over here, comes over here, and is kind of trimmed in a curvature that matches what you might see on the mouse. Now, right now, it's just a square surface on the side. So let's go ahead and get started. The first thing I want to do is, I want to create or look at a plane that might be perpendicular to the surface we have right here. Now this one is at a little bit of an angle, but that doesn't really matter, because it's perfectly flat as a surface.
So let's go ahead and choose something like the top plane. That looks pretty good. Now let's go ahead and start a sketch on that top plane. And I'm going to click on normal too, so I'm looking straight down at it. And you can see here, this kind of cuts in a little bit, so let's go ahead and hit normal one more time and flip it over, so now we're looking at the bottom of that surface, and you can see where they intersect. Now, I'd like to create either a spline or a regular line, or a combination of the two. So let's go ahead and start with a regular spline here.
And I'm going to snap to that point, right there. Let's go ahead and add a control point out here, and then maybe one, right over here. Now, I always like to add some type of a regular, like, a center line here, so I can make sure that it's going to be tangent. So click on tangency right here. Holding control, select those two and click on tangent. You can see it there. Now, same thing over here, we don't want that kind of sticking out past the surface. So let's go ahead and click on this line right there and this line right here, and click on equal curvature, similar to what we did earlier, and we can have the ability to kind of control this a little bit, if you want to.
We can move these points out and adjust that surface. You might have some type of a sketch you might be trying to follow here, to get to this shape. If you do, go ahead and just show that sketch and then drag it around. Or, just go ahead and try to get it looking somewhat similar to what the sketch looks like. Because more than likely, we're going to have to measure the length of the line, when we get finished, or the surface area of the finished surface. So in this case, let's go ahead and create that line, which we already did. Now let's go ahead and create a surface from it.
So let's go over here to surfaces. I'm going to go ahead and click on extruded surface. Let's go ahead and just drag that right down. So you can see here, that is cutting away through that surface. And that's pretty much what we're looking for. Click on OK, and you can see that cuts right through there. Now I can use that surface to go ahead and trim away this surface here. But the only problem is, I only have half of it as this point in time. So you might want to use the mirror command first. Let's go over here to features, let's click on mirror.
I want to mirror around, I believe it's the right plane. Let's see, actually the front plane. And instead of the features to mirror, it's actually a body, it's a surface body. Go ahead and mirror that over. And there it is, and then let's go ahead and use that surface to trim this other one. So go over to surfaces, click on trim surface, I'm going to use my trim tool, it's going to be this surface, right there. And the sections I'd like to remove is that one there, and, oop, not that one right there, I guess that's not working. So, let's make sure that those did get trimmed together.
So here's our surface mirror, oh, you know what, one thing we forgot to do is go back over here and say merge or knit surfaces. Let's go ahead and put those together. So now we have one surface, which is that surface, mirror one. Come back, go to the trimmed surface, using the trim tool, let's go ahead and choose that entire surface, and then remove that section there and that section there. Click OK, and there we have it. So, make sure you do knit those surfaces together if you mirrored over. If you're only doing half, you don't really need to do that. And then generally, you'll probably have to measure something like the surface area of the final surface.
Go over here and click on measure, click on the surface itself, and take a look at that area, and more than likely, that will be the input on the exam.
- Exam-taking techniques
- Surfacing tools
- Creating splines and 3D curves
- Building a boundary surface
- Extending and untrimming surfaces
- Knitting surfaces together
- Creating surface fillets
- Using the Thicken tool