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Working with the Grid Snap modeling aid

From: Rhino 4 Essential Training

Video: Working with the Grid Snap modeling aid

In this video, we'll review the first of Rhino's modeling aids, in order of location on interface, called Snap. It's important to note that this modeling aid is snapping to the grid, so actually it might have been better called Grid Snap, but it's not and don't ask me. The point is, do not be confused between Snap to the grid and the Osnap, a couple of options down. That is snapping two objects, which we'll cover a little bit later. We're also going to check the control panel, and see where you can make changes to the grid's appearance.

Working with the Grid Snap modeling aid

In this video, we'll review the first of Rhino's modeling aids, in order of location on interface, called Snap. It's important to note that this modeling aid is snapping to the grid, so actually it might have been better called Grid Snap, but it's not and don't ask me. The point is, do not be confused between Snap to the grid and the Osnap, a couple of options down. That is snapping two objects, which we'll cover a little bit later. We're also going to check the control panel, and see where you can make changes to the grid's appearance.

Let's start off by maximizing the Front viewport. I'm seeing a lot of extra grid lines here, so I'm going to modify those settings by going to tool's options, and we have the minor grid lines set to 1 unit. I'm going to change that to 10. The grid will automatically update. A little tip here: you want to have the Snap spacing the same number. Otherwise it's snapping to lines you cannot see. Hit OK to accept. I've got some reference geometry in the scene to help guide me building this robot head.

So, let's start off with a Polyline command, and I haven't turned the Grid on, so I'm not able to Snap to any of those intersections. Let's turn that on. We can go down to the toggle, and if it's bold, it will now Snap to those points. The shortcut for that is F9. I'm just going to draw the head, so this should end up being symmetrical if we count an equal number of grid spaces each direction of the axis. Now note we can still do further editing if we highlight it.

Turn the control points on with F10 and just drag those two other points on the grid, put it back to the original position, turn it off with F11. Let's continue with another polyline and draw the robot mouth. So, we've only drawn few lines, but we've made several important first steps. First, we know how big the model is, since we set each grid square to 10 units, as opposed to some other number. So we've avoided surprises later.

Secondly, we made our symmetry accurate since we just counted equal number of grid units to each side of the origin, and finally, we created geometry that's clean and closed.

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This video is part of

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Rhino 4 Essential Training

67 video lessons · 16829 viewers

Dave Schultze
Author

 
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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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