Teaching a Routine to Detect a Part's Image

This topic pertains to the EYE-D Add-on Execution Process.

Before you can measure a part, you must first teach the measurement routine how to read the part's image with the EYE-D add-on. PC-DMIS executes the routine when it detects the part.

To teach a routine to read an image and learn the location of a part, do the following:

  1. Place the part on the CMM's granite surface within the field of view of the camera as indicated by the rectangle in Inspect.

  2. If necessary, clamp the part to the surface to secure it so that it does not move during the measurement process.

  3. You can use Inspect to execute a routine that creates an external alignment file (.aln). This routine first instructs you to create a manual alignment. A DCC alignment follows.

Ensure that the part does not move after you execute the manual alignment routine until the teaching process finishes. You should only move the part after the teaching process finishes. This ensures that the external alignment file defines the current location of the part on the CMM.

  1. Open the Parts screen.

  2. Navigate to your routine, and left-click on it to highlight it and open the Details pane. (Do not click on the Execute () button, because this action executes the routine.) The name of the routine appears on the Details pane.

  3. If the selected routine is recalling an external alignment file (.aln) to roughly locate the part, under the EYE-D item, select the has External Alignment check box.

  4. Click Learn.

WARNING: When you do this, the machine moves. To avoid injury, stay clear of the machine. To avoid hardware damage, run the machine at a slower speed.

If uEye is not installed, the message "This Feature Requires uEye" appears and informs you that you must install it. To install uEye, click on the link in the message.

The following events occur:

    1. The CMM moves to the camera's zero position.

    2. The camera takes an image of the machine along the Y-axis (except in the case of a Tigo system). This reduces the offset between the camera and the part.

    3. Inspect prompts you to outline the part in the image. To outline the part, left-click on the four corners around the part, and leave some space between the hits and the part's image. A polygon appears around the image. If a clamp is attached to the part, be sure to take additional points to exclude the clamp from the polygon.

    4. The CMM moves along the Y axis so that the offset between the camera and the part is minimized. The camera takes an image at this new location.

    5. The CMM moves by 150 mm in the -Y direction as from the previous position and takes another image of the part.

    6. The EYE-D add-on associates the current position of part on the CMM with the current external alignment. It stores the position in the database.

Teaching a measurement routine to read a part's image is now complete.