Use the Grading Type options on the Grading dialog box (see page 29) to create different shoe sizes by selecting Group grading

and Zone grading as appropriate.

Grading dialog box

Use this to grade a shoe to give different sizes using Group Grading or Zone Grading.

Reference geometry selected (optional) - You can select geometry from where the increments will be referenced. When you select some geometry, changes to .

In general, you will want to apply the increments to the internal

dimensions of the sole and not the external dimension of the sole. In this case, you need to select the internal geometry as the reference geometry.

In the figure below, the internal geometry is also shown outside the shoe for clarity.

The reference geometry is used when converting between increments and scale factors when increments have been specified. If no reference

geometry is specified, the overall size of the geometry is used

Grading File - Select a grading file for the basis of your shoe sizing.

Specifications for the following shoe sizes are provided:

French - Children's, Men's, Women's, Youth's.

UK - Children's, Men's, Women's, Youth's.

US - Children's, Men's, Women's, Youth's.

- Save the grading table that you have modified as a .csv file. You should save the grading table to the shareddb folder that will typically be stored in C:/Program Files/Common Files/Delcam. Your filename will automatically be prefixed by PSGRADE_ and given a .csv extension.

When you return to grading, you will find that new_grading has been added to the Grading file list.

Select a standard - You can load a standard that contains the

definition of width fittings and mid sizes. The available options are UK Mens Shoe and US Mens Shoe.

The standards files are typically stored in stored as .csv files, typically in the C:/dcam/product/powershapeXXXX/file/grading folder, (where XXXX is the product version). The names of the standards files all start with PSGRADESTND_. You may create your own standard or customise an existing one. You should save your customised standards files to the shareddb folder with a filename that takes the form

PSGRADESTND_name.csv.

Destination - There are three possible output options for your graded model.

New level - Each size will be saved to a new level on the existing model.

Current model and levels - Sizes are saved to existing model and levels. Although this option lets you see all sizes together, the output can look rather cluttered if you are generating a lot of sizes.

New Model - Each size will be saved as a new model. The model name will take the form

Graded_size_XX.psmodel where XX is the shoe size.

Increments - This is the default option. Grading is defined by

increments, based on the increments that are displayed in Parameters for Grading.

Scale factors - Grading is defined by a table of pre-defined scale factors, based on the Main Size shoe. All shoe sizes that are larger than Main Size are scaled by a factor >1. All shoe sizes that are smaller than Main Size are scaled by a factor <1.

Sizes

First Size - Enter the size of the smallest shoe you want to create.

Last Size - Enter the size of the largest shoe you want to create.

Main Size - Enter the size of the shoe that is to be used as the basis of the grading.

Main Step - Enter the step size for the shoe sizes. For example, to create shoe sizes 10, 10.5 and 11 you will need to set Main Step to 0.5.

First Mid Size - Select a value from the drop down list to

represent the narrowest fitting. The values that are available for the Mid Size drop down lists are defined by the file that you selected from the Select a Standard drop down list. US options will display sizing of AAAA - EEEE. UK options will display widths A - H.

Last Mid Size - Select a value from the drop down list to represent the widest fitting.

Basic Mid Size - Select a value from the drop down list to represent the standard width fitting that this model represents.

Mid Step - Enter the step size for the shoe widths. For example, to create shoe widths AA, B, D and EE you would set Mid Step to 2 as shown below.

Grading Type - Select the grading mode from the drop down list.

Group is the only option currently available.

Parameters for Grading - Grading parameters define the scale factors or increments to be applied to produce the different shoe sizes

Main sizes -The X, Y and Z boxes give the values that are used to calculate the scale factors or increments to be used to create the main sizes. The values can be modified manually by entering a value in the box.

Mid sizes - The X, Y and Z boxes give the values that are used to calculate the scale factors or increments to be used to create the mid sizes. The values can be modified manually by entering a value in the box.

Grading Table - This table shows all the grading and sizing information for the range of sizes that you have selected in the other sections of the dialog box. By default, the grading table will have the columns shown below

In addition, is you have additional solids that you wish to use (for

example, an airbag in a sole), an additional column will be displayed for solid. This allows these solids to use different scaling factors for a

specific size. So, the sole airbag for a size 20 shoe may use the grading factors of a size 18 shoe.

Grade - Any shoe size that is defined by grading will be indicated by Yes by default, except the Main Size.

To omit a particular size, select Yes on the relevant row with the right mouse button and select Modify to display the Edit Grade dialog box. You can also display this dialog box by double clicking the relevant row.

Turn OFF the Grade option in the dialog box and close the dialog box. The Grade column in the grading table will be updated. You can select multiple rows using the normal CTRL and click

technique.

Size - There will be an entry in this column for every shoe size that falls in the range that you defined using First Size, Last Size, First Mid Size, Last Mid Size, Main Step and Mid Step.

X - X value grade data for the selected size. If you have selected reference geometry, and the type of grading is set to Increments, this value will be the position relative to the reference geometry.

To change this value, select it with the right mouse button and selecting Modify to display the Edit Factor dialog box. Select another value from the drop down list, or enter a new value in the X Value box.

Y - Y value grade data for the selected size. If you have selected reference geometry, and the type of grading is set to Increments, this value will be the position relative to the reference geometry.

You can modify this data using the Edit Factor dialog box.

Z - Z value grade data for the selected size. If you have selected reference geometry, and the type of grading is set to Increments, this value will be the position relative to the reference geometry.

You can modify this data using the Edit Factor dialog box.

OK - Grade the shoe according to the parameters defined in the dialog box.

Cancel - Close the dialog box without grading the shoe.