BLANK FITTING

 

This function enables the user to fit the estimated blank outline by using four straight lines. The dialog box is shown in Figure 7.3.4.

 

Figure 7.3.4 The Rectangular Fitting dialog box

There are two types of BLANK FITTING: AUTO FIT and MANUAL FIT.  If AUTO FIT is selected, the Angle (rotation) and Area (rectangular blank) will be automatically determined. An example of rectangular blank outline is shown in Figure 7.3.5.

a) Auto Fit                                  b) Manual Fit

Figure 7.3.5 Rectangular blank outline created by Rectangular Fit

To create the rectangular blank outline:

¡¤         Select a type of RECTANGULAR FIT (AUTO or MANUAL)

¡¤         If MANUAL FIT is toggled, click on DEFINE ORIENTATION to define blank orientation.

-         Click and hold the left mouse button at the cross hair.

-         Move the mouse to rotate the rectangular outline.

-         Stop moving the mouse and release the left mouse button after obtaining the desired orientation.

¡¤         Select the estimated blank outline by clicking on the SELECT LINE button. Alternatively, the user can select the blank elements generated by BLANK GENERATION.

¡¤         Click APPLY button.

BLANK FIT TYPE

RECTANGLE

If the user selects this blank fitting type, the program fits the blank with a Rectangle as shown in Figure 7.3.6

Figure 7.3.6 Rectangle Fit

TRAPEZOID FIT

If the user selects this blank fitting type, the program fits the blank with a Trapezoid as shown in Figure 7.3.7.

Figure 7.3.7 Trapezoid Fit

TRAPEZOID IN RECTANGLE

If the user selects this blank fitting type, the program fits the blank with a Trapezoid in a smallest Rectangle as shown in Figure 7.3.8. The difference between TRAPEZOID IN RECTANGLE and TRAPEZOID is insignificant. However, for some specific examples, the TRAPEZOID IN RECTANGLE type helps to avoid the shape angle.

Figure 7.3.8 Trapezoid in Rectangle Fit