HEIDENHAIN TNC 370 User Manual page 332

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Sequence of Program Steps
Milling an outside contour
Program step
Refer to
Section
1 Create or select program
4.4
Input: Program number
Unit of measure for programming
Plain language or IS0 format
2 Define workpiece blank for graphics
3 Define tools
Input: Tool number
Tool length
Tool radrus
4.2
4 Call tool data
Input:
Tool number
Spindle axis
Spindle speed
4.2
5 Tool change
Input:
Coordrnates of the tool change position
n Y
e.g. 5.4
Radius compensation
Feed rate (rapid traverse)
Miscellaneous function (tool change)
6 Move to starting position
Input:
n Y
5.215.4
donates of the starting position
Radius compensation (RO)
Feed rate (rapid traverse)
Mrscellaneous function (spindle on, clockwise)
7 Move tool to (first) working depth
n
Y
5.4
Input:
Coordinate of the (first) working depth
Feed rate (rapid traverse)
8 Move to first contour point
Input:
point
a ' dinates of the frrz?c%our
Radrus compensation for machining
Machining feed rate
If desired, with smooth approach: RND after this block
9 Machining to last contour point
Input: Enter all necessary values for
10 Move to end position
5 to 8
5.215.4
Input: Coordrnates of the end position
Radius compensation (RO)
Miscellaneous function (spindle stop)
if desired, with smooth departure: RND after this block
11 Retract tool in spindle axis
Input: Coordinates above the workpiece
Feed rate (rapid traverse)
5.215.4
Miscellaneous function (end of program)
12 End of program