Article Contents
Overview
Specifying an increment or a decrement value for a lead per screw revolution enables variable lead threading to be performed.
G34 Code Format
| G34 IP_ F_ K_ Q_ ; |
Parameters
| IP_ : End point |
| F_ : Lead in longitudinal axis direction at the start point |
| K_ : Increment and decrement of lead per spindle revolution |
| Q_ : Shift amount of starting angle of thread cutting |
Address other than K are the same as in straight/taper thread cutting with G32.
G34 Code Example
Lead at the start point: 8.0 mm
Lead increment: 0.3 mm/rev
G34 Z-72.0 F8.0 K0.3 ;
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