HEIDENHAIN CNC Pilot 4290 Instructions for engraving cycles - Manual (Page 5)

August 2005 Engraving 3
1.2 Parameters of the Subprogram Call
Specify in the call parameters of the subprogram the details of the
characters’ appearance.
8 Program name L: Name of the subprogram (See “Character Set” on
page 45.)
8 extern=1 V: Enter “1” for an external subprogram
8 Font height LA: Letter height in [mm]
8 Angle LB: Rotated angle of the letter in [°]
„ Linear front face: 0° = Vertical characters: the characters are
aligned in sequence in positive XK direction
„ Polar front face: LB has no function
„ Lateral surface 0°: Characters are engraved from –CY to +CY
„ Lateral surface 90°: Characters are engraved from –Z to +Z
8 Milling plane LC:
„ Front face: Z position, infeed depth during milling
„ Lateral surface: X diameter, infeed depth during milling
8 Retraction plane LD:
„ Front face: Z position retracted to for positioning
„ Lateral surface: X diameter retracted to for positioning
8 0=Front/1=Lateral LE: Engraving on the front face or lateral
surface
„ 0: Front face
„ 1: Lateral surface
8 0=lin 1/2=polar LF: Only relevant for the front face
„ 0: Characters are aligned linearly
„ 1: Characters are bent upwards over the center of the coordinate
cross
„ 2: Characters are bent downwards under the center of the
coordinate cross
8 Reference diameter LH:
„ Front face: Diameter over which the character string is engraved
with polar alignment
„ Lateral surface: Diameter for calculation of the unrolled lateral
surface (G120)
8 Separation factor I: The separation between the characters is
calculated according to the following formula: LA / 6 * I
If I is not entered, I=1 is used for calculation.
8 Number of repetitions Q: can be used if the same character is to
be engraved immediately following