Trim a contour (#HSC ON/OFF)

Syntax:

#HSC [ON | OFF] [ BSPLINE [PATH_DEV=..] [TRACK_DEV=..] [MERGE=..] [AUTO_OFF_PATH=..]

[AUTO_OFF_TRACK=..] [AUTO_OFF_G00=..] [AUTO_OFF_G60=..]

[MAX_PATH_LENGTH=..] [MAX_ANGLE=..] ] ]

ON	Enable HSC programming.
OFF	Disable HSC programming.
BSPLINE	Keyword for HSC programming with BSPLINE. Must always be programmed as first keyword.
PATH_DEV=..	Maximum deviation of B spline from programmed path contour in [mm, inch ]. The spline is deselected automatically if this deviation is exceeded. If the maximum deviation is defined as 0, path deviation is not monitored. Default value: 0.2 mm when P-CHAN-00439 is active
TRACK_DEV=..	Maximum deviation of tracking axes in [°]. If the maximum deviation is defined as 0, tracking axes is not monitored. Default value: 5 °
MERGE=..	Merge blocks. The maximum deviation is determined depending on the values taken from PATH_DEV and TRACK_DEV. 0: No block merging (default) 1: Merge blocks
AUTO_OFF_PATH=..	Automatic block separation if the programmed B spline deviation of the main axes is exceeded (PATH_DEV). 0: No deselection if deviation is too large (default), block is separated 1: Deselect if deviation is too large
AUTO_OFF_TRACK=..	Automatic block separation if the programmed B spline deviation of the tracking axes is exceeded (TRACK_DEV). 0: No deselection if deviation is too large (default), block is separated 1: Deselect if deviation is too large
AUTO_OFF_G00=..	Automatic deselection of B spline interpolation for G00 blocks. 0: No implicit deselection due to rapid traverse block (default) 1: Implicit deselection due to a rapid traverse block
AUTO_OFF_G60=..	Automatic deselection of B Spline interpolation for programmed exact stop G60 or G360. 0: No implicit deselection due to exact stop (default) 1: Implicit deselection due to exact stop
MAX_PATH_LENGTH=..	Minimum path length of relevant blocks in [mm, inch ]. If blocks are longer than the specified length, the B Spline is deselected implicitly. Default value: 0 mm (implicit deselection due to block length does not take place) when P-CHAN-00439 is active

MAX_ANGLE=..

Maximum contour knee angle in [°] for transitions between two linear blocks up to which a B spline is inserted. The B Spline is deselected internally if the angle between two linear blocks is greater.

Default value: 160 °

Trim a contour (#HSC ON/OFF) 1:

Control points are programmed with linear blocks (G00 and G01). Their target points are used as control points. It must be considered that only the start and end of the curve runs straight through the control points.

	The parameters may also be specified in several steps. For example, this means that it is possible to first define the maximum contour deviation ("PATH_DEV "). Then in a second command, the maximum path length ("MAX_PATH_LENGTH ") and selection of B spline interpolation ("ON") are defined.

Notice
Parameterisation cannot be changed while B spline interpolation is active.

Programming Example

Trimming a contour

The spline curve is based on the control points N40 – N155 but in this case, the spline curve only runs straight through them at N20 and N150.

N20 G00 X0 Y0 Z0 F10000

N30 #HSC ON [BSPLINE PATH_DEV=0.2 MERGE=1 ...] Parametrisation + selection

N40 X3 Y25

N50 X15 Y15

N60 X23 Y12

N70 X25 Y25

N80 X30 Y35

N90 X50 Y37.5

N100 X55 Y32.5

N110 X58 Y12

N120 X70 Y12

N130 X77.5 Y10

N140 X90 Y35

N150 X100 Y37.5

N160 #HSC OFF

N170 M30

... or also