How to Repeat Transforms in SketchUp ?

Repeating transformations in SketchUp, often called memory copy, is a powerful feature that allows you to duplicate objects or apply transformations systematically without re-entering commands. Here’s how you can do it:

1. Using Move + Copy Command for Repetition

The Move tool in SketchUp can create multiple copies along a direction with consistent spacing.

Steps:

1. Select the Object:
   • Click on the object or group/component you want to duplicate.
2. Activate the Move Tool:
   • Press the M key to select the Move tool.
3. Create a Copy:
   • Press and hold the Ctrl key (or Option on Mac) while moving the object. This changes the Move tool to the Move + Copy tool.
4. Set the Spacing:
   • Click to define the starting point, drag to the destination, and click again. After releasing, type the distance (e.g., 5m) and hit Enter.
5. Repeat the Transformation:
   • Type *n (where n is the number of copies) and press Enter. For example, *6 will create six evenly spaced copies.

2. Rotating Copies Around a Point

If you want to create circular patterns, the Rotate tool works similarly to the Move tool.

Steps:

1. Select the Object:
   • Select the group or component you want to rotate.
2. Activate the Rotate Tool:
   • Press the Q key to select the Rotate tool.
3. Set the Center of Rotation:
   • Click to set the rotation pivot point.
4. Make a Rotational Copy:
   • Press and hold the Ctrl key (or Option on Mac), then rotate the object to a new position. Release the mouse and type the angle (e.g., 45°) and press Enter.
5. Repeat the Rotation:
   • Type *n to create multiple rotations. For example, *7 will create seven rotational copies.

3. Linear Array with Memory

To create a linear array, use the same Move + Copy technique but add the x modifier:

Steps:

1. After setting up the first copy with a specific spacing, type x<n> (e.g., x4) and hit Enter. This will create additional evenly spaced copies in the same direction.

4. Tips for Accuracy and Efficiency

• Components vs. Groups: Use components for repeating elements so that changes in one update all copies.
• Guidelines: Use guides to align your copies accurately.
• Undo: If you make a mistake, press Ctrl + Z (or Cmd + Z on Mac) to undo the last action.

Practical Applications

• Furniture Placement: Repeat tables or chairs along a dining area.
• Staircases: Use the Rotate tool to create spiral staircases.
• Decorative Patterns: Use rotational arrays for designing repetitive motifs.

By mastering these steps, you can efficiently create detailed and repetitive designs in SketchUp!