Smithy CNC Mills - Manual (Page 114)

SmithyCNC Programmer’s Reference Manual: Mill Canned Cycles 10-11
surface on the UPPER side of its base. You stick it carefully through the hole
when it is not spinning and is oriented so it fits through the hole, then you
move it so the stem of the L is on the axis of the hole, start the spindle, and
feed the tool upward to make the counter bore. Then you stop the tool, get it
out of the hole, and restart it.
This cycle uses I and J values to indicate the position for inserting and removing
the tool. I and J will always be increments from the X position and the Y
position, regardless of the distance mode setting. This cycle also uses a K value
to specify the position along the Z-axis of the top of counterbore. The K value is
an absolute Z-value in absolute distance mode, and an increment (from the Z
position) in incremental distance
mode.
0. Preliminary motion, as described above.
1. Move at traverse rate parallel to the XY-plane to the point indicated by I and
J.
2. Stop the spindle in a specific orientation.
3. Move the Z-axis only at traverse rate downward to the Z position.
4. Move at traverse rate parallel to the XY-plane to
the X,Y location.
5. Start the spindle in the direction it was going
before.
6. Move the Z-axis only at the given feed rate upward
to the position indicated by K.
7. Move the Z-axis only at the given feed rate back
down to the Z position.
8. Stop the spindle in the same orientation as before.
9. Move at traverse rate parallel to the XY-plane to
the point indicated by I and J.
10. Move the Z-axis only at traverse rate to the clear
Z.