Point Tables; Application; Creating A Point Table - HEIDENHAIN TNC 640 User Manual

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Point tables

You should create a point table whenever you want to run a cycle,

or several cycles in sequence, on an irregular point pattern.

If you are using drilling cycles, the coordinates of the working

plane in the point table represent the hole centers. If you are

using milling cycles, the coordinates of the working plane in

the point table represent the starting-point coordinates of the

respective cycle (e.g. center-point coordinates of a circular pocket).

Coordinates in the spindle axis correspond to the coordinate of the

workpiece surface.

Mode of operation: Press the Programming key

Call the file manager: Press the PGM MGT key.

Enter the name and file type of the point table

and confirm your entry with the ENT key.

Select the unit of measure: Press the MM or

INCH soft key. The TNC changes to the program

blocks window and displays an empty point

With the INSERT LINE soft key, insert new

lines and enter the coordinates of the desired

machining position.

Repeat the process until all desired coordinates have been entered.

The name of the point table must begin with a letter.

Use the soft keys X OFF/ON, Y OFF/ON, Z OFF/ON

(second soft-key row) to specify which coordinates you

want to enter in the point table.

Using Fixed Cycles | Point tables

HEIDENHAIN | User's manual for cycle programming | 10/2017