Rottler P69AHD, Operation And Maintenance Manual

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Section 5 Operating Instructions P69AHD Manual
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5-43
Moving Deck Surface
Before we begin digitizing for the cross section at the deck surface we need to move the plane down
toward the valves. You will notice that there is a red line one side of the plane. This represents the
positive direction. In the example above you will see the valve plane is on the opposite side of the red
line. This means that you will move the plane negative (.118). Keep in mind that it will not always be a
negative number. It can vary depending on how the software calculates the plane.
Another way to analyze the direction you want to move the plane is to click on show and check ‘Tool’ so
that you can visually see the probe in the graphics view. Physically wheel your probe down so that the
midpoint of the ruby is sitting at the deck surface. When you drop the plane down .118 you will see it
move in the graphics. You can verify that the plane should be going through the tip of the probe exactly
through the center of the ball. If it does not, you most likely moved the plane in the wrong direction. In this
case you would have to double the .118 to .236 and change the sign.
To move the deck surface, open up the deck surface plane that has been created. Notice in the example
below that I renamed the planes to “deck c/s” and “valve c/s”. The c/s stands for closed section. Next,
double click on original plane. This will re-open the plane wizard. Next, click on move perpendicular. It is
in this field where you will enter the value to move the plane. In this case it will have a value of (-) .118.
This is approximately half the diameter of the probe tip. Actual tip size is .236 and half of that value is
.118.