This function enables the user to constrain the dimension of the strip and the angle of blank relative to the strip direction. The tab is illustrated in Figure 6.6.14.

Figure 6.6.14  Constraints

COIL DIMENSION

LENGTH

Fix Length is used to restrict the strip length. The user can click on  to calculate the strip length. After Calc button is hit, the Calculator dialog box illustrated in Figure 6.6.15 is displayed. The Unit in the dialog box depends on the Unit selected in blank nesting. The user can select ID and OD value, which is configured by coilinfo.txt file in installation directory. After these two values are selected, the strip length will be displayed in the Length field.

Figure 6.6.15  Calculator dialog box

WIDTH

Fix Width is used to restrict the strip width. The user may enter a strip width value to restrict the nesting drawing. The value will be marked on the nestdefinng result drawing.

STEP OPTION

X-Y STEP

This function is used to set the translation step of blank along X and Y directions. During nesting calculation, the program will move the blank according to the defined translation step within the defined range to obtain a series of results. The default X-Y Step is 10.

ANGLE STEP

This function is used to set the angle step of blank rotating about the center. The default angle step is 2 degrees. During nesting calculation, the program will rotate the blank according to the defined angle step within the defined range to obtain a series of results.

RANGE OPTION

This option uses the range values to constrain the parameters such as rotation angle, width, pitch, cut-off profile angle, and cut-off profile arc radius.

ANGLE

Min./Max.: Use an angle with a certain range to constrain the blank rotation and strip width. After entering the minimum and maximum values of angle, blank nesting calculates a series of results according to the defined range of the rotation angle.

WIDTH

Constrain the width of the strip or sheet.

Min./Max.: The width range is used as the width constraint. The user defines the allowable range of the blank width (Min and Max). Blank nesting calculates a series of results according to the defined range of the width.

PITCH

Constrain the pitch value during nesting.

Cut-off die

L Angle: The angle between the left side of parallelogram, isosceles trapezoid and trapezoid with the positive direction of X-Axis. Use an angle value within a certain range to constrain the shape of the parallelogram, isosceles trapezoid and trapezoid profiles. After entering the minimum and maximum values of angle, blank nesting calculates a series of results accordingly.

R Angle: The angle between the right side of trapezoid and the positive direction of X-Axis. Use an angle value within a certain range to constrain the shape of trapezoid profile. After entering the minimum and maximum values of angle, blank nesting calculates a series of results accordingly.

Radius: The radius of the arc profile. Use an angle value within a certain range to constrain the shape of arc profile. After entering the minimum and maximum values of angle, blank nesting calculates a series of results accordingly.

BLANK OPTION

Fix Angle is used to specifically define a constant rotation angle.

Fix Pitch is used to specifically define a constant pitch.

Fix Width is used to specifically define a constant width.

Width >Pitch: During nesting, width is greater than pitch. This option will automatically change to Width >Pitch*0.5 to constrain part when the user selects Two Pair, Mirror, Isosceles-trapezoid and Trapezoid.

APPLY

Click on the Apply button illustrated in Figure 6.6.14 to calculate the nesting result and show it on the screen according to the current blank position, as illustrated in Figure 6.6.16. The user may also click the Manual button to adjust the blank and blank profile. Click the Save button to save the nesting result.

Figure 6.6.16  The Result of One-up Nesting