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OptiSure Automated Optical Inspection 26 www.nordsonefd.com info@nordsonefd.com +1-401-431-7000 Sales and service of Nordson EFD dispensing systems are available worldwide. Example program that contains a Find Mark comma…

OptiSure Automated Optical Inspection

25www.nordsonefd.com info@nordsonefd.com +1-401-431-7000 Sales and service of Nordson EFD dispensing systems are available worldwide.

# Click Step Reference Image

• Right-click on any middle box

(item 1) of an arrow and then select

PARAMETER.

The AOI Arrow window opens.

11 • Select the ALL checkbox (to cause

the system to enter the same

settings for all arrows).

NOTE: If you want to enter settings

for each arrow individually, deselect

ALL.

• For Type, select CIRCLE CENTER.

12 • Adjust THRESHOLD until the all the

yellow circles are located on the

circumference of the circle.

13 • Select LIGHT TO DARK.

• Adjust PIXEL AVG to make the mark

image easier for the system to ﬁnd.

NOTES:

- Check CENTER if you want to

center the image based on the

image in the mark library.

- MAX and MIN are not used in this

example.

Continued on next page

Using the Arrow Types (continued)

Circle Center Example (continued)

To Create a Circle Center Mark Image (continued)

OptiSure Automated Optical Inspection

26 www.nordsonefd.com info@nordsonefd.com +1-401-431-7000 Sales and service of Nordson EFD dispensing systems are available worldwide.

Example program that contains a Find Mark command for a Circle Center mark

Using the Arrow Types (continued)

# Click Step Reference Image

• Close the dialog box to save the

settings.

The system adds the circle diameter

(item 8) and its value (item 9) to the

mark image of the circle.

The saved mark image now contains

additional data that will allow the

system to accurately ﬁnd it upon

reaching its corresponding Find

Mark command in a program.

• Continue to “To Use a Circle Center

Mark Image in a Program” below to

use the Circle Center mark.

Circle Center Example (continued)

To Create a Circle Center Mark Image (continued)

To Use a Circle Center Mark Image in a Program

# Click Step Reference Image

• In the dispense program, insert a

Find Mark command and specify

the Mark No. for the Circle Center

mark you created in the previous

procedure.

NOTE: The complete example

program is provided below.

OptiSure Automated Optical Inspection

27www.nordsonefd.com info@nordsonefd.com +1-401-431-7000 Sales and service of Nordson EFD dispensing systems are available worldwide.

Positional Checking Example

Positional Checking is an OptiSureAOI feature that allows you to determine the exact X and Y offsets of a

dispensed dot that deviates from a designated dispense location. Positional Checking is accomplished by using the

Circle Center arrow type and the Positional Checking and Step & Repeat commands. The overview below shows

how this feature works.

Overview of the Positional Checking Feature

1. A workpiece with deﬁned

dispense locations.

2. Dispensed dots on the

workpiece.

3. Using a Step & Repeat

program, the camera examines

each dispensed dot.

4. If a dispensed dot ﬁts within the speciﬁed

X and Y offset range, it passes; if not, it

fails.

5a. Pass / fail status is displayed in a Positional Checking

window. The system also captures and saves image

ﬁles for all pass / fail results.

Using the Arrow Types (continued)

6. Open an image to view details, including

diameter and XY offset.

5b. Pass / fail images are saved in the D:\ directory into

two folders: NG (not good) and OK.