### Three Button Configuration for the RA7 Arm

The two modes for a three button configuration used on the RA7 arm are discussed below.

To switch between measure and mouse mode,

1. Turn the "F" axis to the limit, then

2. Turn the "E" axis 90 degrees.

(???? Are the above instructions and switching modes correct? This was taken from existing documentation, so I'm not sure if this is the old way of doing it.)

Measure Mode

(The picture was taken from existing documentation. Is it correct in resembling the button position and arm shape... more or less? Also which button is assigned which color? The ER 505392 currently says Button 1 is White, Button 2 is Red, Button 3 is Black, but since this image is from existing documentation, I'm not sure that's correct to this pic. I'll update the documentation with the colored buttons as soon as I know what they are.)

The following Measure Mode functions are available for the buttons indicated above:

Desired Action | Arm Procedure to Follow
Click Done, OK, Yes, Finish, Next, or Create on a dialog box | Press button 1 for less than 1 second.
Erase the last hit from the hit buffer. | Press and hold button 1 for more than 1 second.
Click Cancel, No, or Previous buttons on a dialog box | Press and hold button 1 for more than 1 second.
Bring up the Readout window (DRO) | Press and hold button 1 for more than 1 second when no hit is in the hit buffer.
Toggle the display of information in the readout window (DRO) | With the DRO already open, press button 1 for less than 1 second. The T value is displayed with the XYZ values in the DRO: XYZT
Take a point | Press button 2 for less than 1 second without moving the arm.
Take a "pulled hit" | Press and hold button 2 while pulling back on the arm, releasing it in before 1 second elapses. See "Using Pulled Hits for Probe Compensation".
Scan | Press and hold button 2 for more than one second while dragging the probe along a part's surface.
Select features on the part using the arm | Position the probe near the feature, press and hold button 1 and then press button 2. (ER 505392 says "We should be able to do this with one button since we no longer need the button to go into and out of mouse mode". Which button is used then? 1 or 2?)

Mouse Mode

The following Mouse Mode functions are available for the buttons indicated above:

Desired Action | Arm Procedure to Follow
Use the left mouse button | Press button 1.
Use the right mouse button | Press button 2.
Use the middle mouse button | Press button 3.
Zoom out of the current CAD view | Press button 1 (left mouse click) above the imaginary center line of the current CAD view. The further above the center line the larger the zoom.
Zoom in on the current CAD view | Press button 1 (left mouse click) below the imaginary center line of the current CAD view. The further above the center line the larger the zoom.
Pan the view | Press and hold button 1 on the CAD model while dragging the arm.
Create a Point Info or Dimension Info box on the CAD view | Press button 1 twice (double click) on a feature label.
Rotate the CAD view | Press and hold button 3 while dragging. (Is this a 3D or 2D rotate?)
Box Zoom | Press and hold button 1, press and hold button 2 and drag a box on the part model. Release the buttons to zoom in on the selected portion. (ER says "Should be able to use one button for this." What button is it then?)