HEIDENHAIN ND 1300 OED and Crosshair Systems User Manual

Page 51

Quick Start

Constructing a datum zero point
The datum zero point can be constructed from parent features when simply probing the desired point is

not practical.

It would not be possible to provide a single description of this process for all measurement applications that

require feature constructions. However, the concept illustrated by the following example and the construc-

tion techniques described later in Chapter 6: Measuring can be used to construct a datum zero point for

any measurement application.

In this example, after the part skew is performed, a datum zero point is created at the intersection of the

X-axis along the bottom of the part (skew axis), and the Y-axis along the left side of the part.

To construct the datum zero point:

1 Touch the Measure Line icon. Probe two or more points well distributed along the left side of the part,

and then press the Finish button. The line feature will be added to the Feature list

3 Touch the Measure Point icon, touch the skew line, touch the line probed on the left side of the part

(the lines will be checked) and then press the Enter key. A point constructed at the intersection of the two

lines will be added to the Features list.

Creating a Datum