# Dimensioning holes and curved features

## Video: Dimensioning holes and curved features

There's some special tools and techniques for

## Dimensioning holes and curved features

There's some special tools and techniques for using the dimension tools with holes and curves. By default, hole dimensions relate to the center of a hole. However, in some conditions, you might want to actually add a dimension to the edge of the hole. I'm going to show you how to do that. So I've got the Dimension Tool turned on right now. And I'm going to zoom in here on this model. And I'm going to dimension to this hole. So by default, if I dimension from this edge here to any one of these outside edges of the hole, it automatically chooses the center point of the hole. And what you can't do if you delete that. If you choose the first baseline dimension and then you hold down shift, it actually allows you to either choose the inside of the hole and place the dimension there.

Or, you can choose a baseline dimension, hold down shift and pick the outside of the hole. And it'll pick the outside of the edge. So this is really handy when sometimes you're using a specialty type of hole. And you don't want to specify exactly the spacing to the center point, but maybe to the edge, or the gap distance between that and the edge to make sure you've got enough clearance. So, it's a great way to use that. By the way, you can also use the same exact technique when you're actually using sketching to draw out holes. Instead of automatically always choosing the center point, you can always then choose one of the edges of the hole. It's a great way to use that tool.

Next thing I want to point out is if you have something like a curve right here, and you wanted to dimension to it. Normally you'd dimension here, and you'd try to like say, well, I'm dimension to this curve here, but that's going to kind of give you this line segment here, and going to the midpoint of that line or to the center point of that arc. That might not be what you want, a lot of times what you want actually dimension is to this virtual sharp that's out here, and you just don't see that virtual sharp. So what you need do is create a virtual sharp, and there's no real tool. You see up here, there's nothing that says, hey, create a virtual sharp. So it's a little bit of a cryptic technique, but what you do is you click on the first line, hold down Ctrl, choose the second line that you actually want to create the virtual sharp between.

And then just go up here and click on the Point command. And as soon as you do that, notice it continues these lines and actually produces a virtual sharp. Now that I have this virtual sharp here, I can use it to dimension. I also want to point out, if you go up here to the Options. If you come over here to Document Properties, now to Virtual Sharps, you can show it how you would like to actually display that sharps. So I can make it a plus, or any of these other styles. Click OK. And then my sharp turn into just a point. And now when I want to dimension. I can dimension from here to that point and again from here to the point over here.

But we don't have, again, a virtual sharp. So let's go back, click on this line here, click on this line here, click on the point. Produces a new virtual sharp, and now you can define the length from this point to that point, along that edge. It's a nice way to add virtual sharps to your designs, and it's great for using sheet metal for machine parts whenever you need to actually dimension to a virtual sharp. And then you can come back and add, for instance, a radius dimension here, showing what that is. You can click on this little point here, or this little dot to bring the dimension at the inside or the outside, depending on how you want to display it, and then click OK.

A couple of really neat ways to work with curves and holes with a few things that are kind of hidden inside of SolidWorks that you might not automatically know about. The commands are the same for working with holes. However, there are a few simple modifiers that are not overly apparent. This movie should give you a good overall view of the tools and techniques.

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#### This video is part of

SolidWorks 2014 Essential Training

97 video lessons · 6426 viewers

Author

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1. ### Introduction

1m 51s
1. Welcome
1m 7s
2. Using the exercise files
44s
2. ### 1. Touring the Interface

31m 13s
1. Launching SolidWorks for the first time
3m 55s
2. Accessing and customizing the Ribbon
4m 14s
3. Touring the shortcut bar and identifying essential keys
7m 27s
4. Saving, renaming, and managing files
10m 28s
5. Working with the new view cube, or View Selector
2m 36s
6. New features in SolidWorks 2013 and 2014
2m 33s
3. ### 2. Getting Started with 3D

14m 11s
1. Understanding the 3D world
2m 31s
3m 15s
3. The virtual, parametric prototyping environment
1m 56s
4. The FeatureManager and feature-based modeling
3m 43s
5. History-based modeling and the rollback bar
2m 46s
4. ### 3. Basic Solid Modeling

28m 32s
1. Starting a new sketch
6m 50s
2. The six steps used in almost all modeling features
52s
3. The Line and Centerline tools
3m 25s
4. Using the Circle tool
1m 51s
5. Adding and removing relationships and dimensions
6m 56s
6. Understanding relationship types
3m 58s
7. System options, units, and templates
4m 40s
5. ### 4. More Drawing Tools

18m 28s
1. Drawing rectangles
5m 31s
2. Creating arcs in a sketch
4m 8s
3. Drawing splines in a sketch
4m 57s
4. Sketching polygons
3m 52s
6. ### 5. Sketch Editing Tools

36m 5s
1. Trimming and extending portions of a sketch
3m 54s
2. Creating offset geometry
3m 13s
3. Moving, copying, rotating, and scaling elements
3m 13s
4. Erasing, undoing, and redoing actions
2m 24s
5. Using the mirror tools
2m 24s
6. Creating repeating patterns in a sketch
4m 55s
7. Using construction lines to build robust sketches
3m 25s
8. Applying fillets and chamfers to a sketch
2m 32s
9. Working with slots
3m 46s
4m 1s
11. Using the Convert Entities command
2m 18s
7. ### 6. Reference Geometry

9m 33s
1. Working with planes
5m 28s
2. Placing and using axes
2m 22s
3. Placing a coordinate system
1m 43s
8. ### 7. Building 3D Geometry

17m 50s
1. Extruding a sketch into a 3D object
4m 36s
2. Using Revolve to create 3D parts
2m 42s
3. Using Loft to create complex shapes
4m 40s
4. Refining a loft shape with guide curves
2m 22s
5. Using the sweep to create wire and pipe shapes
3m 30s
9. ### 8. Removing Material

20m 23s
1. Modifying parts using the Extruded Cut tool
5m 42s
2. Working with the Revolved Cut tool
6m 19s
3. Using the Lofted Cut tool
3m 32s
4. Cutting holes and grooves with the Swept Cut tool
4m 50s
10. ### 9. Refining Geometry

21m 5s
1. Using fillets and chamfers to smooth corners
5m 58s
2. Creating repeating rectangular patterns
3m 16s
3. Creating a circular pattern
2m 27s
4. Mirroring objects
4m 0s
5. Using the Shell and Draft tools
3m 52s
6. Scaling parts
1m 32s
11. ### 10. Blocks

9m 39s
1. Working with reusable sketches and blocks
2m 47s
2. Creating blocks
3m 51s
3. Designing with blocks
3m 1s
12. ### 11. Assembly: Putting It All Together

29m 45s
1. Understanding the tools for beginning a new assembly
4m 46s
2. The basic steps in creating an assembly
3m 18s
3. Mating parts together in an assembly
6m 43s
4. Working with subassemblies
2m 9s
5. Linear and circular assembly patterns
4m 56s
3m 32s
7. Using Toolbox
4m 21s

15m 8s
1. Mating parts with coincident, parallel, and distance mates
4m 35s
2. Mating parts with width mates
5m 53s
3. Mating parts with path mates
2m 5s
4. Mating parts by aligning planes
2m 35s
14. ### 13. Hole Wizard

10m 20s
1. Getting started with the Hole Wizard
4m 38s
2. Positioning holes in layout sketches
5m 42s
15. ### 14. In-Context Modeling

15m 27s
1. Linking sketches to other parts
4m 28s
6m 48s
3. Using the Hole Wizard in context
4m 11s
16. ### 15. Creating Threads on Parts

17m 15s
7m 17s
2. Using a helix and Swept Path to create a thread
4m 2s
5m 56s
17. ### 16. Equations and Design Tables

17m 25s
1. Using equations to drive a sketch
5m 5s
2. Working with complex calculations
2m 6s
3. Integrating Microsoft Excel to manage design tables
7m 10s
4. Building assemblies using part configurations
3m 4s
18. ### 17. Part Drawings

23m 17s
1. Working with drawing templates
6m 49s
2. Setting up drawing options and sheet properties
3m 43s
3. Choosing the correct projection angle
2m 21s
4. Adding model views to a drawing
10m 24s
19. ### 18. Dimensioning

16m 8s
1. Creating general dimension notations
6m 37s
2. Creating ordinate and running dimensions
3m 0s
3. Dimensioning holes and curved features
3m 8s
4. Using the autodimension tools
3m 23s
20. ### 19. Adding General Annotations

14m 38s
1. Creating holes and callouts
5m 8s
2. Adding center marks and centerlines to a drawing
3m 46s
2m 57s
4. Making drawing revisions
2m 47s
21. ### 20. Assembly Drawings

11m 42s
2m 10s
2. Including a bill of materials
1m 42s
3. Adding balloons to specify parts on an assembly drawing
1m 39s
4. Adding a title block and sheet properties
2m 8s
5. Building an exploded view for an assembly drawing
4m 3s
22. ### Conclusion

1m 2s
1. Next steps
1m 2s

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