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Modeling potato chips, champagne caps, and glasses has made us hungry. Why don’t we do some cooking?
The following exercise will allow you to practice using the Cut tool. You can make your egg before cutting it, or go directly to the cutting portion of the exercise.

      q Tool: 3D Primitives/Sphere
      q Do this:
      Select the Sphere tool and create… a sphere!
      q See the detailed explanations in the chapter:
      User Manual/Tools/Construction/3D Primitives/ Sphere

 

      q Tool: Deformer/Stretch
      q Do this:
      1. Select the Deformer tool.
      2. In the Assistant Palette, click on the Lasso and select the upper part of the gridded box.
      3. Validate.
      4. From the Deformer tool palette, select the Stretch tool and pull on the top of the sphere.
      5. Validate and put the tool aside.
      q See the detailed explanations in the chapter:
      User Manual/Tools/Modeling/Deformer/The local deformers/Stretch

      q Tool: Deformers/Taper
      q Do this:
      1. Select the Deformer tool again.
      2. Select the Taper tool.
      3. With the spacebar, toggle until the upper faces are highlighted.
      4. Click on the upper face and move your mouse to taper the top of the egg.
      5. Validate and put the tool aside.
      q See the detailed explanations in the chapter:
      User Manual/Tools/Modeling/Deformer

      q Tool: Smooth
      q Do this:
      1. Select the Smooth tool. From the sub-palette, select Bezier smoothing, and specify smoothing range 2 for the egg.
      2. Validate and put the tool aside.
      3. If you ran into problems, the finished file is: Coquille3.
      q See the detailed explanations in the chapter:
      User Manual/Tools/Modeling/Smooth

 

      q Tool: Cut (Extract)
      q Open the model file: Coquille3
      q Do this:
      1. Select the Cut tool.
      2. In the Assistant Palette, click on the Lasso (or right mouse click on PC, ALT+click on Mac).
      3. Surround the part to be cut with the Lasso.
      4. Validate.
      5. Put the tool aside: your object is cut into two parts. You can move one to check it.
      q See the detailed explanations in the chapter:
      User Manual/Tools/Modeling/Cut/Extract
      User Manual/Tools/Assembly/Move


      q Tool: Cut
      q Open the model file: Coquille3
      q Do this:
      1. Create a sphere that intersects with the egg. The sphere will be the current object.
      2. Select the Cut tool.
      3. Click on the egg. (Note: If the egg is the current object and you click on the sphere, you should get the same results.)
      4. You can see all the additions and subtractions between the two objects by pressing the “+” and “–” keys.
      5. Validate. Put the tool aside: half the egg is left.

      q See the detailed explanations in the chapter:
      User Manual/Tools/Modeling/Cut/Boolean

      q Tool: Cut
      q Open the model file: Coquille3
      q Do this:
      1. Select the Cut tool.
      2. Click where you want to start cutting Use the cursor to draw a polyline that will be the cutting line.
      3. Validate and put the tool aside. Your object is cut into two parts. You can move one of the parts to verify it.

      Here is another method you can use: Draw a curve with the drawing tool you want. Make the egg be the current object, then click on the curve. The cut will follow the line. This technique was used for the acoustic baffle.

      q See the detailed explanations in the chapter:
      User Manual/Tools/Modeling/Cut

      q Tool: Delete
      q Open the model file: Coquille4
      q Do this:
      1. Select the Delete tool.
      2. With this tool, click on the faces which close the inside of the egg.
      3. You will get two empty halves.
      4. Validate and put the tool aside.

      q See the detailed explanations in the chapter:
      User Manual/Tools/Modeling/Delete

      q Tool: Thickness
      q Open the model file: Coquille5
      Select the Thickness tool.
      With the “+” and “–” keys, specify a thickness.
      You may enter a numeric value by pressing the Tab key and entering the value.
      You may add the thickness from the inside or outside of the egg, simply by toggling the spacebar.

      q See the detailed explanations in the chapter:
      User Manual/Tools/Modeling/Thickness

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