- [Instructor] SolidWorks has some great tools
for trimming and extending sketches.
If I'm in a sketch and you can see you've got a bunch
of different lines over here on the screen and a couple
or actually just one circle right up here.
I have the trim entity's tool.
And directly below that I have the extend entity's tool.
Let's go ahead and start with that trim entity's tool.
And right down here, you can see we have different modes
this tool operates in.
The first one is Power Trim, which is my favorite
and I pretty much use that exclusively.
So let's do that one last I've got the Corner Trim,
I've got the Trim Away Inside
Trim Away Outside and Trim to Closest.
And you can also do this thing called keep trimmed entities
as construction geometry,
or I can ignore trimming of construction geometry.
So a couple things I can turn or options
I can turn on or off here which are pretty cool.
But let's go ahead and choose that very first one here
Trim to Closest, your icon turns into a pair of scissors
and any little segment of line you go over,
notice it changes to a slightly red color in the center.
If I click on that it's going to trim away
to the next closest thing it can find.
That's why it's called Trim to Closest.
Same thing over here, if you do something in the middle
it's going to trim away that segment in the center
and it's going to trim it away.
Pretty straightforward and easy to use.
Let's go ahead and hit the undue command
a couple times here to bring all that back,
and let's go ahead and try that trim tool one more time.
This time I'm going to say Trim Away Outside.
Alright so what I'm going to do with this tool here
is I'm going to click on a line, couple of different lines here
and then what I'm going to do is I'm going to trim anything
that's on the outside of those lines.
Let's do that one more time.
So I'm going to choose the trimming tools right
or I can do it another way I can say
let's go up here and Trim Away Outside.
So I'm going to choose this line and this line
and then I'm going to trim away anything that's on the outside.
Notice the hover over there it's going to trim away
everything that's outside of that line.
So there it is.
There it is.
And there it is.
So that's Trim Away Outside.
Alright let's undo that one more time bring it all back,
trim to it one more time.
This time Trim Away to the Inside,
same thing I'm going to say this line and this line over here
are going to be my trimming tools right.
Then if I highlight over one of these lines
you can see it turns red showing me what's going to happen.
I'm going to trim this here it's going to trim these away.
Alright undo that, undo that again, bring those all back
trim to it one more time here we go.
Corner Trim, click on this line here,
click on that line there it's going to trim away everything
that's not inside that corner so pretty straight forward.
Now one more time, go back over here.
Now for my all time favorite Power Trim.
My Power Trim is a little bit harder
to understand how it actually works.
But think about you having like a little pencil
and right over here I'm going to start my pencil.
I'm going to start drawing notice that little gray line
that is following along with my cursor.
Well anywhere that little gray line goes
it's going to cut over something
and it's going to trim away to the closest thing it finds.
So same thing down here
I'm going to trim, trim, trim, trim, trim
and notice that little line
so you can see the path of what you're trimming away.
Alright I can trim over here back over here
anywhere I want to go my friendly little line will follow.
And if you let go, the trim path goes away.
So pretty straightforward.
Right of course you can bring that trim back.
I also want to point out that while we're in that trim tool,
Power Trim, right over here if I go back to that last
little red mark, right if I make a trimming error
if I go back to that, it'll bring back that trim.
So if I just go back and click over that
that's a cool way to go back
if you made the wrong trim command.
And especially if you're trimming a lot of things
if I trimmed a hundred things
and I trim the very last one was wrong
I could go back and bring that one back.
And it was so that's the basics for Power Trim.
Also down here is keep trimmed entities
as construction geometry.
Let's turn that one on
and then try just trimming a few things away.
Notice it just changes them to construction geometry
and they're not regular lines anymore so pretty cool.
Alright the other one I want to point out here
is if I'm out of the trim tool is the extended entities
click on that one there.
Now extend entities has to have something to extend up to
that's the main thing.
So this line right here, if I go over it
notice the closest thing it sees is this circle
so if I click on that, it's going to extend over to there.
Now this line over here, it can't extend anywhere
because there's nothing in front of it, right
so that is the requirement.
Right over here it's going to trim or extend all the way
over to here this one over here extend over to there,
this guy's going to extend over here,
this guy's going to extend there over here
and it's going to go and do that extend feature
from the closest edge.
So notice when you're clicking on something
it has to have something in front of it.
So let's go ahead and create like one more line.
So here's our line, right
If I go over here to extend on this side
it's going to try to extend, but over here it won't work
because there's nothing on that side.
But if I add something on that side, let's try it
make a line over here, go back to the tool,
if I go over here it's going to extend that direction.
If I go on that side it's going to extend that direction
depending on which side of this line you happen to be on
it will determine which side will be extend ended.
Anyways, both the trim and extend tools are pretty powerful.
And they're a great way to take some basic standard geometry
like circles, rectangle, squares, and lines and then create
exactly what you're looking for in your sketch.