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Rhino 4 Essential Training

Understanding the Project and Smart Track modeling aids


From:

Rhino 4 Essential Training

with Dave Schultze

Video: Understanding the Project and Smart Track modeling aids

In this video, we'll continue to talk about the final three options or modes that appear in the Osnap toolbar, which we will keep open and docked for the remainder of these lessons. The reason I'm calling them modes is that they work in conjunction with the ten other Osnap options. In fact, if you don't have any Osnap option selected, then neither the Project or Smart Track are of much use. So, we are closing in on the final design for this next shape, so there is less geometry in the way. I'm going to draw the first curve here, using the Project option.
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  1. 4m 13s
    1. Welcome
      1m 1s
    2. Using the exercise files
      28s
    3. Recommended hardware
      2m 44s
  2. 19m 8s
    1. Understanding the three types of entities: curves, surfaces, and solids
      5m 51s
    2. Comparing Bezier curves, B-splines, and NURBS objects
      3m 35s
    3. Comparing isocurve surfaces and mesh surfaces
      4m 50s
    4. Setting measurement units and tolerance
      4m 52s
  3. 18m 16s
    1. Introducing the viewport
      3m 20s
    2. Using construction planes to anchor model design
      5m 27s
    3. Changing the way a model is viewed using shading modes
      3m 11s
    4. Navigating the viewport with pan, zoom, rotate, and reset controls
      3m 24s
    5. Exploring help options
      2m 54s
  4. 29m 48s
    1. Understanding Rhino's command philosophy
      3m 10s
    2. Using toolbars and docking buttons to a toolbar
      3m 33s
    3. Navigating the geometry menus using a "department store" analogy
      3m 35s
    4. Using the command line and status bar to get feedback
      4m 56s
    5. Modifying the nudge control and setting other preferences
      6m 54s
    6. Using the Properties window
      3m 1s
    7. Opening and saving files
      4m 39s
  5. 14m 24s
    1. Creating basic objects: curves, surfaces, and solids
      4m 22s
    2. Performing basic transformations
      3m 14s
    3. Selecting objects
      3m 37s
    4. Organizing a project using layers
      3m 11s
  6. 21m 18s
    1. Understanding lines and polylines
      4m 10s
    2. Building rectangles and polygons
      5m 12s
    3. Creating arcs, circles, and ellipses
      7m 8s
    4. Drawing freeform curves
      4m 48s
  7. 47m 36s
    1. Comparing different types of 3D surfaces
      7m 11s
    2. Extruding surfaces to create features in a model
      8m 58s
    3. Creating surfaces with lofts
      7m 49s
    4. Using Revolve and Rail Revolve to create surfaces
      7m 42s
    5. Using Sweep Rail to create a 3D claw
      7m 49s
    6. Creating complex surface shapes using Network Surface
      8m 7s
  8. 46m 48s
    1. Introducing solids
      5m 42s
    2. Making solids with primitives
      5m 41s
    3. Extruding curves to create solids without primitives
      8m 59s
    4. Creating unique shapes with the union, difference, and intersection Boolean operators
      6m 46s
    5. Troubleshooting solids and Booleans
      8m 53s
    6. Editing with the solid edit tools
      6m 20s
    7. Creating and transforming holes in solids
      4m 27s
  9. 27m 8s
    1. Understanding Rhino's modeling aids
      3m 59s
    2. Working with the Grid Snap modeling aid
      2m 22s
    3. Using the Ortho modeling aid
      3m 4s
    4. Using the Planar modeling aid
      2m 4s
    5. Incorporating the Osnap modeling aid into your workflow
      6m 7s
    6. Understanding the Project and Smart Track modeling aids
      4m 42s
    7. Setting cursor constraints
      4m 50s
  10. 50m 14s
    1. Editing corners with Fillet and Chamfer
      7m 38s
    2. Trimming and splitting with curve Booleans
      5m 37s
    3. Moving and rotating objects with the Drag and Nudge tools
      7m 24s
    4. Copying and pasting objects
      4m 10s
    5. Understanding how Rhino uses Undo and Redo
      3m 42s
    6. Grouping objects
      3m 21s
    7. Scaling objects
      6m 40s
    8. Duplicating objects using the Mirror command
      6m 36s
    9. Making copies and structured sets using arrays
      5m 6s
  11. 20m 37s
    1. Using the Analysis toolbar to understand characteristics of a model
      6m 14s
    2. Defining degrees of curve and surfaces
      6m 6s
    3. Using Rebuild and Change Degree
      8m 17s
  12. 26m 21s
    1. Measuring and labeling values on a model using dimensioning
      5m 22s
    2. Creating screen captures for quick proofs
      5m 16s
    3. Creating 2D views of a 3D model
      6m 44s
    4. Rendering a project
      8m 59s
  13. 22m 5s
    1. Preparing a model for prototyping by confirming that all gaps are closed
      5m 17s
    2. Using the "shelling" technique to create wall thickness
      10m 54s
    3. Exporting to the STL format for 3D printing
      5m 54s
  14. 14s
    1. Goodbye
      14s

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Rhino 4 Essential Training
5h 48m Beginner Apr 08, 2010

Viewers: in countries Watching now:

In Rhino 4.0 Essential Training, author Dave Schultze shows how the 3D NURBS-based modeling tools in Rhino 4.0 are used to engineer products from toy robots to full-sized aircraft. This course concentrates on using Rhino 4.0 for industrial design and rapid prototyping, with a review of common 3D terminology using specific examples. Along with a comprehensive exploration of the Rhino interface, the course includes an introduction to building 3D objects with Rhino's three primary entities: the curve, the surface, and the solid. Exercise files are included with the course.

Topics include:
  • Understanding 3D terminology
  • Viewing a 3D model in Rhino 4.0
  • Manipulating objects with commands
  • Creating curves, surfaces, and solids
  • Applying transformations to 3D objects
  • Creating unique shapes with Boolean operators
  • Snapping to objects and planes
  • Defining curve and surface degree
  • Prototyping a 3D model
Subjects:
Architecture Modeling Product Design CAD 2D Drawing 3D Drawing
Software:
Rhino
Author:
Dave Schultze

Understanding the Project and Smart Track modeling aids

In this video, we'll continue to talk about the final three options or modes that appear in the Osnap toolbar, which we will keep open and docked for the remainder of these lessons. The reason I'm calling them modes is that they work in conjunction with the ten other Osnap options. In fact, if you don't have any Osnap option selected, then neither the Project or Smart Track are of much use. So, we are closing in on the final design for this next shape, so there is less geometry in the way. I'm going to draw the first curve here, using the Project option.

So, this works by searching for an Osnap anywhere and then forcing that point to be drawn flat on the construction plane. Let's start by making sure the End point Osnap is selected, which it is, and we're going to draw a Polyline from this intersection, and I want to, in the Front viewport, just draw to that perceived center. So, notice that it is searching for an intersection. It goes to the back end of that line.

It looks fine from the Front viewport, but in the Perspective viewport, it's not exactly where I wanted it. So, I'm going to hit Delete, and we're going to select the Project option and do the exact same line from the same two points. Polyline from the intersection here, and then when I click on this point that I prefer, notice what the Perspective window is doing. It's finding the End point snap but then flattening it back out to the Front view construction plane.

Next up, we'll talk about the Smart Track. I'm going to maximize this Front view by double-clicking the name, and here is the final geometry. We'll just take a look for reference before we build our own. Notice how comes down from the end point and that it aligns with this reference geometry here, and the final edge aligns with the mouth up above. That's what we want to recreate. I'm going to go ahead and hit Delete. Turn on Smart Track, so this creates a series of construction lines that fly out in several different directions looking for intersections to align to.

Let's get this geometry out of the way. I'm going to select and hit Delete. I'm going to go to the Polyline command, and just start form this End point. Now it's going to search for typically Ortho's, which are at every 90 degrees. Without clicking just come over here and have it take a peak. By that, I'm just pointing it, the End point lights up, and I come back and now I found an intersection that's got an alignment. So, let's do it one more time. I'm going to move.

I've clicked, and I'm going to continue over here. Just found an angle. Now I'm going to go do the same thing up here and just let it rest without clicking to indicate that's my Reference point. So, I'm going to come straight back down. It will find the Ortho projection from those last two points. So, I can click again and then complete it here at the bottom. Right-click to exit. Now I'm going to turn off Smart Track and just to explore little bit of a free form neck shape by using the Control Point Curve over here.

I'm going to go ahead and turn on couple of these object snaps, probably way more than you ever would. But just to demonstrate that we can draw shapes and not have everything snap to Perceived Intersections or Osnaps. You can do that one way by clicking Disable button, and as I draw, it will not find any of those. It's probably not as helpful because I couldn't start from anywhere accurate. So, I'm going to go ahead and escape out of this.

Deselect Disable and try a better way to do it. So, I'm going to restart the Free Form Curve. I do want to snap to this point here, so I'm going to use that. Now if it ever pops up again, I'm just going to hold down the Alt key and it'll ignore any Osnaps in the vicinity. So, I've got the Alt key pressed. Then I can just release and let those turn back on. Alt key is back on, so it's going to ignore, ignore, and then release, so I can snap.

So, the wide variety of Osnap options use in conjunction with Project and Smart Track will provide quick and efficient means to keep your curves where you want them to go. A final note: all of the Rhino provided modeling aids are there to help you, but you are never forced to use any of them. Some people actually prefer to bypass the features of Smart Track and Project and draw their own construction lines. But if you prefer to see the construction lines, then by all means use whatever method that makes the most sense for your project.

Find answers to the most frequently asked questions about Rhino 4 Essential Training.


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Q: I'm noticing several differences between the options that author shows in the video and my copy of Rhino. For example, I can't select curves on the edge of a surface or turn on control point when vertically extruding a closed surface like an ellipse. Also, I do not get the Sweep option. I'm running on Mac OS X Snow Leopard.
A: This course was recorded on a Windows computer. As of February 2012, Rhino for Mac is still in beta, so it is not yet a full-fledged product. Wait until the full version comes out to see if these issues are resolved.
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