End Point Programming With Angle; Thread Cutting With Constant Lead (G33) - Siemens SINUMERIK 840DE Programming Manual

Example
N10 X10 Z100 F1000 G18
N20 ANG1=140 CHR=7.5
N30 X80 Z70 ANG2=95.824 RND=10
N40 X70 Z50
4.14.4

End point programming with angle

Function
If the address letter A appears in an NC block, either none, one or both of the axes in the
active plane may also be programmed.
Number of programmed axes
• If none of the axes in the active plane is programmed, the block is either the first or
• If exactly one axis in the active plane is programmed, then it is either a single straight
• If two axes are programmed in the current plane, it is the second block of a contour that
Angle A must only be programmed for linear or spline interpolation.
4.15

Thread cutting with constant lead (G33)

Function
With G33 three types of thread
• Cylinder thread
• Face thread
• Taper thread
can be produced with single or multiple threads as right-hand or left-hand thread.
Fundamentals
Programming Manual, 10.2004 Edition, 6FC5 298-7AB00-0BP1
second block of a contour consisting of two blocks.
If it is the second block in this type of contour, it indicates that the start and end points in
the active plane are identical. The contour then comprises at most a motion perpendicular
to the active plane.
line, whose end point is uniquely defined by the angle and programmed Cartesian
coordinate, or it is the second block in a contour definition comprising two blocks. In the
latter case, the missing coordinate is set to match the last reached (modal) position.
consists of two blocks. If the current block was not preceded by a block with angle
programming and no programmed axes in the current plane, the block in question is not
permissible.
Programming Motion Commands
4.15 Thread cutting with constant lead (G33)
;Approach start position
;Straight line with specified angle and
chamfer
Straight line on intersection with
specified angle and ;rounding
;Straight line on end point
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