| 摘要 |
A programmer unit for developing part programs for numerically controlled machines includes a keyboard through which the operator enters data and a display which outputs data. The programmer unit leads the operator through a series of steps which include the entry of selected composite numbers and the entry of geometric data taken from part drawings. When the required geometric data is not available on the drawing, a composite calculation mode of operation can be enabled by the operator and employed to calculate the required data from data that is available on the drawing.
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