Introduction to Rhinoceros

• 1. Opening Rhinoceros
• 2. User Interface
  • 1. Command Line
  • 2. Object Snap
• Start Drawing
  • 1. Line and Polyline
  • 2. Rectangle
  • 3. Circle
  • 4. Trim
• Exercise

1. Opening Rhinoceros

1. Find the Rhinoceros 5 (64-bit) or Rhinoceros 4 icon.

   

2. When Rhinoceros opens, choose either of these templates:

   1. Large Objects – Millimetres, or
   2. Small Objects – Millimetres.
   

2. User Interface

We will focus on three main parts of the interface:

1. Command line
2. Object Snap
3. Status bar

1. Command Line

• Drawing applications contain many functions spread across several menus and toolbars. A search box or command line lets users run commands directly and quickly.

2. Object Snap


• Pay particular attention to Osnap, short for Object Snap. The image above shows both its English and Chinese labels.
• Grid Snap is also useful when you want the cursor to lock onto grid points.


• Osnap locks the cursor onto specific geometric points, such as an endpoint, midpoint or centre.

Start Drawing

1. For this exercise, use only the Top viewport. Double-click the Top label to maximise it.
2. Hold the right mouse button and drag to pan the view.

1. Line and Polyline

Line

1. Enter the Line command.
2. Select the starting point.
3. Select the endpoint.
4. To repeat the Line command, right-click or press the space bar.

To draw a line of a specific length:

1. Select the starting point.
2. Enter the length—for example, 10.
3. A white line follows the cursor, while a black preview shows the specified 10 mm length.
4. Hold Shift to constrain the line horizontally or vertically.
5. Left-click to confirm the line.

To draw a line at a specific angle and length:

1. Select the starting point.
2. Enter <60 and press Enter to constrain the line to 60° from the x-axis.
3. Enter 10 and press Enter to set its length to 10 mm.
4. Left-click to confirm and finish.

Polyline

Use the Polyline command to draw several connected line segments.

2. Rectangle

1. Use the Rectangle command to draw a rectangle.
2. There are three drawing methods.

Diagonal Mode

This is the default mode. Select two opposite corners of the rectangle.

Three-Point Mode

After starting Rectangle, enter P or click 3 Point on the command line. You can then define the rectangle with three points.

Centre Mode

In Centre mode, first define the centre of the rectangle and then define a corner.

3. Circle

1. Use the Circle command to draw a circle.
2. Several drawing methods are available.

Centre Mode

This is the default mode. First select the centre, then choose R or D to define the radius or diameter.

Two-Point Mode

In 2 Point mode, select two points to define the circle's diameter.

4. Trim

Use Trim to remove unwanted line segments.

1. Enter the Trim command.
2. Select the cutting objects, then press the space bar or Enter, or right-click to confirm.
3. Select the segments you want to remove. Press the space bar or Enter, or right-click when finished.

Exercise

1. Each grid square is 10 × 10 mm.

   Download the [PDF version](week 1.pdf).


Translation notice: This English page was generated automatically by AI and has not yet been reviewed by a human. It will be checked and revised page by page when time permits.