Join Shaun Bryant for an in-depth discussion in this video Using the new centerline commands, part of AutoCAD: Tips & Tricks.
- [Instructor] So here we are again, in the world of AutoCAD and tips and tricks. And what we're going to look at now, is the ability to use the new Centerlines panel in AutoCAD 2017. Now this is all part of your annotation on an AutoCAD drawing. And what I've done, I've really simplified it here. We've got a little cylindrical object with a beveled edge. And you can see a side or elevation view of it on the left and you've got a little end view there, on the right hand side, with the circles as well.
Now, sometimes, you want to place centerlines quickly and easily onto an AutoCAD drawing. Now these objects here, you'll notice, have been placed on the OBJECTS layer, and these objects here are obviously also on the OBJECTS layer. So we need to change the layer. Now, before we do that, just make note of the drawing name at the top of the screen there, it's 8_UsingCENTERLINES.dwg You can download that and use it to follow along with the video itself. So how do we use our centerlines? Well let's go to the Home tab on the ribbon first, jump into our Layers panel here, and go to Layer Properties.
Now I've got two layers in this drawing, apart from the 0 default layer. We've got the OBJECTS layer, which is obviously white. And I've got a CENTERLINES layer. I'm going to double-click on the CENTERLINES layer to make it current. And you can see the little green tick appears next to it, top-left corner of the Layer Properties Manager tells me that CENTERLINES is the current layer. More importantly though, make a note of the Linetype of the CENTERLINES layer. It is the Continuous Linetype. So I'm not using any center linetype at all.
So let's close the Layer Properties Manager. Now, I can add vertical and horizontal centerlines and also center marks for circles if I want to. Let's have a look at how that works. Going to go to the Annotate tab now, on the ribbon, like so, and you'll notice there in the Dimensions panel, it's using the current layer, which in this case, obviously, is the CENTERLINES layer. So if I was placing any dimensions, I could override back to the CENTERLINES layer there if I wanted to.
Normally though, you would use the current layer and you would use your DIMS layer for dimensioning. Notice to the right of that, you now have a new Centerlines panel where I can add a Center Mark or I can add a Centerline. So let's have a look now at the left-hand view. The side elevation view there. So Centerlines, I go to the Centerline command, come into the drawing area and select the first line where I want to place the centerline between. So it's going to be that line then it's going to be that line.
And there's my centerline. What do you notice about that centerline? Oh, hello, it's using a centerline linetype. Even though the layer isn't. Now if I hover over that, it is actually an object called Centerline, it's on the layer CENTERLINES because we set that, but notice it overrides it with its own linetype, which in this case, is CENTER2, which is the default setting. So I can just zoom in now, click on my centerline, and just click on the grip there, and just drag it out a little bit.
Let's take it out by, say, five, just use the Direct Distance Entry there, and I can drag. Now you'll notice, that's kind of done something weird. Just click and make sure you drag in the right direction and type in five and Enter, and it's actually making that end of the centerline five long. What I need to do, is just hit Escape there, click on it again and zoom in. There's two arrows there, can you see? One at each end. Click and then drag, and you can make the centerline longer.
So I'll take that out that way somewhere and click there, make that a little bit longer so it goes all the way through. Again, I'm not worrying about exact distances but if you zoom in, you'll notice it does actually take it over that line there. So it does actually expand it over the object, over the edge of the object. I'm just going to click there, click on the arrow, just take that out a little further like that, hit Escape to deselect. So that's really rather neat, when you think about it. It's almost like a dynamic block, but not quite. So I'll just zoom out a tad, pan across.
Let's have a look at the Center Mark, similar process. So I'm going to select the outside edge of the circle there, and it center marks it for me, again, using that CENTER2 linetype. So notice there, Select circle or arc to add a centermark, I can do another one if I want to, I'll just press Enter to finish, and again, if I zoom in, it's gone just slightly over the circle. Can you see that? So it does take it slightly outside for you. But the lovely thing is another Center Mark, like so, using that CENTER2 linetype.
Show extension, it says there, yes. So it is showing the extension. So what's really nice about that now, is you've got an actual physical AutoCAD object called a centerline or a center mark and the lovely thing is, it automatically uses a center linetype and provided you put it on its own separate layer, in this case, CENTERLINES, you can centerline and center mark to your heart's content in AutoCAD using annotation in your AutoCAD drawings.
Skill Level Intermediate
Q: Why can't I earn a Certificate of Completion for this course?
A: We publish a new tutorial or tutorials for this course on a regular basis. We are unable to offer a Certificate of Completion because it is an ever-evolving course that is not designed to be completed. Check back often for new movies.