Scale /Shrinkage Compensation : Options and Results

Access: Open this function from one of the following locations:

Select Solid > Objects > Scale from the menu bar.
Select Parting > Layout Tools > Shrink from the menu bar.
Select Parting Layout Tools > Shrink from the Mold Design Guide Toolbar or Parting Guide Toolbar.

Scale	Scale geometry larger or smaller.
Shrinkage Compensation	Apply Shrinkage Compensation to compensate for part shrinkage during the mold material cooling process, after removal from the mold and cooling to room temperature.

Scale or Shrinkage Compensate. These two functions are very similar; the main difference is that Scale can be performed multiple times, whereas Shrinkage Compensation is usually performed only once to compensate for part shrinkage during the cooling process.

In the Feature Tree, the Scale feature appears for both the Scale and Shrinkage Compensation functions, however they are separate features displaying different feature icons. This enables scaling and shrinkage compensation on the same part.

Scale operations may be performed multiple times, resulting in multiple Scale features.

Shrinkage Compensation is usually performed only once; any additional shrinkage compensation operation always updates the existing Shrinkage Compensation (Scale) feature (if one exists).

Note: When creating a Non-Uniform Scale, the Automatic Preview operation may be time-consuming. A checkbox in the Preferences enables you enable/disable the Automatic Preview option in the Feature Guide when executing the Scale function.

Demo: Press the button below to view a short movie demonstrating the function:	Practice: Press the button below to open Cimatron with a practice ELT file similar to that used to create the movie (if the relevant feature already exists in the ELT file, you can either edit it or delete it and create a new feature).

The following part is used:

Required Step 1

Pick objects, sketches, or faces and then <exit><exit>(middle mouse button). The following options are displayed:

All Objects / By Pick

This is a toggle option All Objects / By Pick, enabling geometry selection.

All Objects	All the objects of the active part are automatically selected. This is the default option.
By Pick	Pick one or more objects (open or closed), faces, sketches or UCS's (except the Model UCS).

Press <exit><exit>(middle mouse button) when all objects are selected.

Required Step 2

Select the pivot point for the scaling and then <exit><exit>(middle mouse button).

Prior to selecting the scaling pivot point; choose the selection method:	After selection and <exit><exit>(middle mouse button); the pivot point is marked:

Parameters

Free Selection /
Center of Selected Geometry

This is a toggle option Free Selection / Center of Selected Geometry, enabling the pivot point selection.

Free Selection	Pick the required point. This is the default option.
Center of Selected Geometry	The system selects the center of geometry of the selected object/entities. This point is associative and changes if the selected geometry is changed.

Required Step 3

Set the scale parameters. The options for this step depend on the scaling type selected: Uniform Scale or Non-Uniform Scale.

Uniform Parameters

None as Factor:		Factor as Factor:		Factor as Percentage:

Non-Uniform Parameters

None, By Ratio as Factor:		None, By Ratio as Percentage:		None, By Bounding Box as Factor:

For more, see:

The Reverse Scale parameter only appears in the Scale function.

Click OKOK or ApplyApply in the Feature Guide to complete the function. The scaling is applied to the object.

To verify the results of the function, you can use the measuring tools to check the object dimensions.

When completed, the Scale feature (together with the scaling data defined as a factor or a percentage) appears in the Feature Tree as follows:

Uniform - As Factor:	Uniform - As Percentage:


Non-Uniform - As Factor:	Non-Uniform - As Percentage:

Scale operations may be performed multiple times, resulting in multiple Scale features.

Shrinkage Compensation is usually performed only once; any additional shrinkage compensation operation always updates the existing Shrinkage Compensation (Scale) feature (if one exists).

Scale attribute: Cimatron Explorer - Preview & Properties, Advanced tab

A Scale attribute displays whether or not a scaling operation has been performed on the part.
The value of the Scale attribute is 1.0 if a scaling operation has not been performed. If the part has been scaled, the value of the last scale operation is displayed as shown below.

Some functionality may be dependent on the product package. Contact your Reseller if you require a license.