Programming manual
CNC 8070
CANNED CYCLES
General concepts
10.
(SOFT V02.0X)
177
10.1.4 Work planes
There are two coordinates in the machining cycles along the
longitudinal axis that are described next because they are important:
• Starting plane (Zi).
Tool coordinate (position) when defining the cycle.
• Reference plane (Z).
Coordinate near the part, it is programmed when defining the
cycle.
Functions G98 and G99 indicate where the tool returns after
machining.
G98 Return (withdraw) to the starting plane (Zi).
G99 Return (withdraw) to the reference plane (Z).
Both functions are modal and G98 is assumed by default.
Example:
G99 G1 X0 Y0 (Movement)
G81 Z I K (Defines and executes the drilling canned cycle)
X1 Y1 (Move and drill)
X2 Y2 (Move and drill)
G98 X3 Y3 (Move and drill)
G80 (Canned cycle cancellation)
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