Disable Feature Motion

 

 

helmel.com

Introduction

From time to time during the inspection process it is helpful to drop into manual mode to capture data points on a designated feature. An example might be a diameter of a bushing that is inserted into a forging and whose position has a large variance.

In this condition it is helpful for a DCC CMM that is running a part inspection to drop into manual mode to allow the operator to control the capturing of data points. Then upon completion of the feature, return to DCC control and resume the inspection

Applying the Disable Motion Flag

Applying the Motion Disable flag can be done through two different methods. The first of these methods involves the Motion Edit dialog, see figure 1. This method allows you to flag one feature at a time to disable motion, see Edit Motion for additional information.

Motion Edit Tool
figure 1, Motion Edit Dialog

In the lower left section of the Motion Edit Dialog, you will find a check box labeled "Disable Motion". Place a check here to force this feature into manual mode during the inspection process. All current motion assigned to this feature will remain visible in the Motion Edit control and during program execution will not be acted upon. This allows switching the Disabled Motion on and off depending on conditions.

In method 2, you can use the Feature Selection Tool which will allow you to attach many Disable Motion Flags in one operation, see figure 2.

Disabled motion in Feature Selection Tool
figure 2, Feature Selection Tool

When using the Feature Selection Tool, highlight in the displayed list the features you would like to toggle the Disable Motion Flag. Once the highlighting is completed, open the drop down menu and choose [DCC Option→Disable Motion]. It is important to remember when selecting this command that it is a toggle which sets or removes the disabled flag.

Should you select the command [DCC Options→Clear all Disabled Motion], all Disable Motion flags will be cleared from the entire part inspection regardless if was highlighted in the list or not.

Disabled Motion Behavior at Inspection Time

When Geomet is executing a part inspection program, it is constantly looking for the Disable Motion flag. Should a feature with the flag be found, Geomet will drop into manual mode to allow the operator to control the capturing of the required data points for the feature.

When the required number of motion disabled features have been completed, Geomet will display a targeting tool that shows the location of the first motion point of the next feature. The targeting tool shows the XYZ relative position to that point and the operator should joystick or manually drive the CMM to where the targeting box shows all zeros, or near zero. At that time, press the <Continue> button on the target tool and Geomet will return to DCC and resume part inspection.