HEIDENHAIN TNC 407 (280 580) ISO Programming - Manual (Page 167)

TNC 426/TNC 425/TNC 415 B/TNC 407 5 - 3 4
5 Programming Tool Movements
5.5 Path Contours – Polar Coordinates
To program a helix:
Helix, clockwise.
Enter the total angle through which the tool is to move on the helix in
incremental dimensions (here, H = 1080°).
Enter the height of the helix in the tool axis, likewise in incremental
dimensions (here, Z = 4.5 mm).
Confirm your entry.
Further entries, if necessary:
Radius compensation
Feed rate F
Miscellaneous function M
Resulting NC block: G12 G91 H+1080 Z+4.5 *
1
9
H 1 0 8 0
5
END
2
G 1
G
Z 4