Programming A Simple Contour - HEIDENHAIN TNC 640 User Manual

First Steps with the TNC 640 | Programming the first part

Programming a simple contour

The contour shown to the right is to be milled once to a depth of
5 mm. You have already defined the workpiece blank. After you
have initiated a dialog through a function key, enter all the data
requested by the control in the screen header.
Call the tool: Enter the tool data. Confirm the
entry in each case with the ENT key, and do not
forget the G17 tool axis
Press the L key to open a program block for a
linear movement
Press the left arrow key to switch to the input
range for G codes
Press the G00 soft key if you want to enter a
rapid traverse motion
Press the G90 soft key for absolute values
Retract tool: Press the orange axis key Z and
enter the value for the position to be approached,
e.g. 250. Press the ENT key
Activate no radius compensation: Press the G40
soft key
Confirm Miscellaneous function M? with the
END key
The control stores the entered positioning block.
Press the L key to open a program block for a
linear movement
Press the left arrow key to switch to the input
range for G codes
Press the G00 soft key if you want to enter a
rapid traverse motion
Preposition the tool in the working plane: Press
the orange X axis key and enter the value for the
position to be approached, e.g. –20
Press the orange axis key Y and enter the value
for the position to be approached, e.g. -20.
Confirm your entry with the ENT key.
Activate no radius compensation: Press the G40
soft key
Confirm Miscellaneous function M? with the
END key
The control stores the entered positioning block.
Press the L key to open a program block for a
linear movement
Press the left arrow key to switch to the input
range for G codes
Press the G00 soft key if you want to enter a
rapid traverse motion
HEIDENHAIN | TNC 640 | ISO Programming User's Manual | 10/2017
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