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Reference section

7.1

103

Orientation interpolation

The following G codes are only active, when

$MC_ORI_IPO_WITH_G_CODE is set to 1:

Axis interpolation

ORIAXES Linear interpolation of the machine axes or interpolation of the rotary

axes using polynomials (with active POLY)

Vector interpolation

ORIVECT Interpolation of the orientation vector in a plane (large circle interpola-

tion)

ORIPLANE Interpolation in a plane (large circle interpolation), synonymous with

ORIVECT

ORIPATH Tool orientation in relation to the path. A plane is created from the nor-

mal vector and path tangent that defines the meaning of LEAD and

TILT at the end point. In other words, the path reference only applies to

the definition of the end orientation vector. Large circle interpolation is

performed between the start and end orientations. LEAD and TILT do

not merely provide the lead and tilt angles.

They have the following significance:

LEAD defines the rotation in the plane created by the normal vector

and path tangent. TILT then defines the rotation around the normal

vector. In other words, they correspond to theta and phi in a sphere

coordinate system, with the normal vector serving as the Z axis and

the tangent as the X axis.

ORICONCW Interpolation on a peripheral surface of a cone in the clockwise direc-

tion

ORICONCCW Interpolation on a peripheral surface of a cone in the counterclockwise

direction

Also required in both cases:

A3=... B3=... C3=... or XH=., YH=... , ZH=...

End orientation, cone's axis of rotation: A6, B6, C6

Opening angle: NUT=.

ORICONIO Interpolation on a peripheral surface of a cone with an intermediate ori-

entation specified via A7=... B7=... C7=....

Also required:

A3=... B3=... C3=... or XH=..., YH=..., ZH=... end orientation

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