# Simple helical interpolation

With simplified helical programming, no pitch is defined, only a target point. Depending on the target point the result is a helical motion with maximum one complete rotation.

## Syntax example for G17 plane:

 G02 | G03 X Y Z I J | R
 G02 | G03 Circular interpolation CW / CCW X Y Target point in XY plane in [mm, inch] Z Target point on helical axis perpendicular to XY plane in [mm, inch] I J Position of circle centre point of interpolation in XY plane (I in X, J in Y) in [mm, inch], according to G161/G162 R Radius of interpolated circle (alternative to I,J) in [mm, inch]

## Syntax according to selected interpolation plane:

 plane Interpolation type Target pointin plane Target placeon helical axis Centre point/radius G17 G02/G03 X..Y.. Z.. I..J../R G18 G02/G03 Z..X.. Y.. K..I../R G19 G02/G03 Y..Z.. X.. J..K../R

## Programing Example

Helical interpolation in the XY plane counter-clockwise

The following helix is travelled:

Starting point a:               X-10  Y0  Z0

Target point b:                Z20

Helix centre point I, J:   Zero point

N10 G17 G90 X-10 Y0 Z0 F500 G161

N20 G03 I0 J0 Z20