YesAX V3.1.2 - Software User Manual.pdf - 第64页
6-6 Recipe Creat ion Step by Step for 2D Rec ipes New Board Dialog Close Define the Bottom Left Corner Board Size Info in CAD data? User Want t o Capture? Prompt User to Capture board Image Set Launch the Grid Image Set …
Recipe Creation Step by Step for 2D Recipes 6-5
6.2 Step2: Define New Board Parameters
After the YCD file is created, press the New Board button to start creating a new inspection
recipe. The Create New Inspection Recipe dialog displays.
Press the Browse button on the right of the CAD data box to load the corresponding CAD data
file (.YCD). With the exception of the Recipe Path box, the information from the Header section
of the CAD data automatically populates the other text boxes in the dialog.
Press Ok on the Create New Inspection Recipe dialog to start the interactive process of defining
board size, defining alignment marks, and capturing the board image. Depending on the
information provided in the CAD data some of the steps may be skipped. Here is a flow chart of
the process:
6-6 Recipe Creation Step by Step for 2D Recipes
New Board Dialog Close
Define the Bottom
Left Corner
Board Size Info in CAD data?
User Want to Capture?
Prompt User to Capture board
Image Set
Launch the Grid
Image Set Dialog
Alignment Mark Info. in the CAD
Data ?
Capture Board
Image Set
Create Map
Background
Define bottom
right corner
Define top left
corner
Define Left
Alignment Mark
Define Right
Alignment Mark
Proceed to CAD Import
Yes
No
Yes
No
Yes
No
6.3 Step3: Import CAD data
The software analyzes the part position information from the CAD data and sequentially
positions the camera over three parts on the board. The objective is to verify the position of that
part. The first part selected by the system is the one closest to the bottom left corner of the board
(the systems origin) interpreted from the CAD data. Next is the part closest to the bottom right
corner of the board and finally the part at the top left corner of the board. For each part, the
camera will focus over the corresponding corner it thinks the part should be in.
Recipe Creation Step by Step for 2D Recipes 6-7
The Align CAD Coordinates dialog displays.
Move the highlighted ROI (region of interest) in the video window, on top of the corresponding
part and then click OK.
When the OK button is clicked, the software records the part position. Based on the part position
of the three parts located on the extreme corners of the board, the software compensates for any
differences in the coordinate systems between the system that generated the CAD data and the
system reading it. The factors compensated are XY scaling difference, board rotation and XY
axis skew. The Skip button on the dialog allows the user to select a different reference part. It is
recommended to select a small part, such as a chip, as a reference part because for big parts it
becomes more difficult to determine the center position. Also during this process you can use the
Shift-Ctrl and Arrow keys to move or re-size the box for more accurate alignment, if needed.
If the prompted part is not at the supposed corner of the board, the CAD data header information
may be incorrect in describing the CAD data. Pressing the Advance.. button launches the Setup
CAD Parameters dialog that allows you to adjust the coordinate system of the CAD data.