EFECTOS PROCESALES DE LA INTERPOSICIÓN DE LA RECUSACIÓN

Translating is the process of moving selected entities or one or more copies of the entities to new positions without altering the orientation, size, or shape of the entities. You can move the entities within a plane or from one plane to another plane. You can translate all geometric and drafting entity types.

1. Choose Main Menu, Xform, Translate.

2. Select one or more entities to translate, then choose Done. Mastercam displays the Translate Direction menu.

3. Define a translation direction using rectangular coordinates, polar coordinates, two points, or two points relative to two views.

4. On the Translate dialog box, select the type of operation to perform (Move, Copy, or Join) and enter a value for Number of steps. Choose OK to translate the entities.

5. Repeat steps 2 through 4 to translate additional entities.

6. Press [Esc]to exit the function.

Notes:

¨ To view a graphic of a translation between views, see Defining a translation direction.

¨ You can quickly (but less precisely) translate entities using the Modify, Drag function.

Offsetting a single curve

When Mastercam offsets a single curve, it displaces it by a defined distance and direction. The direction is perpendicular to the curve at every point along the curve relative to the current construction plane.

1. Choose Main Menu, Xform, Offset.

2. On the Offset dialog box, select the type of operation to perform: Move or Copy.

3. Enter a value for Offset distance and Number of steps, then choose OK to close the dialog box.

4. Select a line, arc, or spline in the graphics window.

5. Click on one side or the other of the selected entity to indicate the offset direction. Mastercam offsets the curve.

Note: If you entered a negative offset distance on the Offset dialog box, Mastercam moves the entity in the opposite direction from the one you indicate.

6. Repeat steps 4 and 5 to offset additional curves or press [Esc] to exit the function.

Notes:

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¨ Offsetting a spline by a distance greater than the radius of the smallest curve in the spline may cause the spline to self-intersect.

¨ Offsetting an arc or circle creates a larger or smaller arc or circle, depending on the offset direction.

Offsetting outside the perimeter creates a larger circle. Offsetting inside the perimeter creates a smaller circle.

¨ The Create, Line, Parallel function gives you several options for offsetting single lines. For more information, see Creating parallel lines.

Offsetting chains of curves

When Mastercam offsets chains of curves, it displaces them by a defined distance and direction and optionally a depth. The offset is perpendicular to the chains of curves at every position along the curves relative to the current construction plane.

1. Choose Main Menu, Xform, Ofs ctour.

2. Select one or more chains of curves, then choose Done. Mastercam opens the Offset Contour dialog box.

Note: When making your selection, it is important to pay attention to the chaining direction. The offset direction that you will set in a following step is calculated relative to the chaining direction for each selected chain.

3. Indicate the type of operation to perform by choosing Move or Copy.

4. Enter a value for Number of steps to set the number of times to perform the operation.

5. Set the offset direction by choosing Right or Left in the Offset section of the dialog box.

6. Enter a value for Distance in the Offset section of the dialog box.

Note: This value is the distance that the chains will be offset in the XY directions (relative to the current construction plane). You can enter a positive value only.

7. Enter a value for Offset depth and indicate whether the depth is Absolute or Incremental.

Note: This value is the distance that the chains will be offset in the Z direction (relative to the current construction plane). You can enter a positive, negative, or zero value.

8. Set the remaining parameters on the Offset Contour dialog box, then choose OK to offset the chains.

9. Repeat steps 2 through 8 to offset additional chains of curves, or press [Esc] to exit the function.

Notes:

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¨ Offsetting a spline by a distance greater than the radius of the smallest curve in the spline may cause the spline to self-intersect.

¨ Offsetting an arc or circle creates a larger or smaller arc or circle, depending on the offset direction.

Offsetting outside the perimeter creates a larger circle. Offsetting inside the perimeter creates a smaller circle.

¨ When offsetting 2D chains using a depth other than zero, you can define the offset distance by entering a value for Taper angle. This parameter is directly related to the Distance parameter in the Offset section of the dialog box. The following graphic illustrates this relationship.

Stretching entities

Stretching is the process of moving (translating) entities or one or more copies of the entities to new positions and optionally lengthening or shortening selected lines. Lines are stretched when they cross or intersect the window used to select the entities. The line endpoints that lie within the selection window are translated, while the endpoints that lie outside the selection window maintain their original positions. You can perform the Stretch function on all geometric and drafting entities except solids.

1. Choose Main Menu, Xform, Stretch.

2. Use the Stretch Menu to select entities to stretch.

3. Define a translation direction using rectangular coordinates, polar coordinates, two points, or two points relative to two views.

4. On the Stretch dialog box, select the type of operation to perform (Move or Copy) and enter a value for Number of steps. Choose OK to translate/stretch the entities.

5. Repeat steps 2 through 4 to translate/stretch additional entities.

6. Press [Esc]to exit the function.

110 Notes:

¨ The following graphics show a rectangle that is stretched out of shape (bottom graphic) when two of its lines are intersected by a selection window (top graphic) and translated to a new position.

Rolling and unrolling entities

The Roll function lets you wrap lines, arcs, and splines about an axis as though around a cylinder or unwrap rolled entities to make them lie flat. To fit entities in a cylindrical shape when rolling them or to flatten entities when unrolling them, Mastercam breaks the entities relative to an angle tolerance. It then generates new geometry, called target geometry, based on the break points. You can choose to create points at the break points or lines or splines between the break points.

1. Choose Main Menu, Xform, Roll.

2. Select one or more entities, then choose Done. Mastercam opens the Roll dialog box.

Note: Your selection can include points, lines, arcs, and splines.

3. Indicate the type of operation to perform by choosing Move or Copy.

4. Determine the type of transformation to perform: Roll or Unroll.

5. Indicate the axis to transform the entities about. In Mastercam Design, Mill, and Wire, you can choose X axis or Y axis. In Mastercam Lathe, you can choose Z axis or X axis.

Note: The rotation axis is relative to the current construction plane.

6. Indicate the direction to transform the entities about the axis by choosing CW or CCW.

7. Enter a value for Rotary diameter. This value determines the size of the cylindrical shape about which the geometry is transformed.

8. Enter a value for Angle tolerance. This value determines how closely the transformed (target) geometry fits the original geometry. A smaller value results in a more precise fit.

9. Indicate the type of target geometry to create by choosing Points, Lines, Splines, or Nurbs.

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10. Set the position of the target geometry by taking one of the following actions:

¨ To position the target geometry relative to an angle value, choose Angle, then enter a value in the text box.

¨ To position the target geometry relative to a translation vector, choose Associate pts, then choose Select. Mastercam returns you to the graphics window. Define the translation vector by entering a point to translate from and a point to translate to. After you enter two points, the dialog box reopens.

11. Choose OK to close the dialog box and transform the geometry.

Squashing entities

The Squash dialog box allows you to project selected points, lines, arcs, and splines to the current construction plane. This means you can select entities in various positions in 3D space and squash them into a flat, 2D plane. The system converts arcs to NURBS splines if they are not parallel to the construction plane.

1. Choose Main Menu, Xform, Squash.

2. Select the entities to project using the General Selection menu and choose Done. The Squash dialog box displays.

3. Select an operation: Move, Copy, or Join.

4. Enter the Depth or choose:

¨ The Construction depth check box (so that the projected entities remain at the current construction depth)

¨ The Construction attributes check box (so that attributes of the projected entities use the current construction color, level, line style, and line width)

Note: You can choose either or both check boxes.

5. Choose OK.

6. Repeat steps 2 thru 5 to project additional entities.

7. Press [Esc] to exit the function.

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