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Introduction 03.02

1.2 General function

1-18 SINUMERIK 840D/840Di/810D Operator's Guide CAD Reader (CAD) – 03.02 Edition

1.2.3 Formats

Input format

Basic input format: DXF (Drawing eX

change Format)

DXF input formats as defined by AUTOCAD

are supported.

Output formats

After conversion, NC programs can be saved as file types

• MPF

• SPF

• ARC.

When a file is saved, the CAD Reader creates G code (NC blocks)

from the selected contour. This code can be processed directly with

the SINUMERIK.

Comment blocks which can be processed by the geometry processor

or the cycles support are saved at the same time.

Imported contours can be recompiled or modified by means of the

geometry processor.

Drill holes are generally generated in cycles format and can thus be

recompiled on the control.

1.2.4 Plane generation

Generation of relevant data

When the relevant data are saved as part program blocks, they are

converted to MPF format by the geometry processor and the

appropriate planes G17, G18, G19 are generated.

Notes

• Technology data are not specified in the CAD Reader, but must

generally be programmed in the editor or the geometry processor.

• NC milling programs are created only in the 2D machining plane.

The infeed axis must be programmed later.

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Siemens SINUMERIK 840Di Operator's Guide

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