Fagor 8070 BL, Programming Manual

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CNC 8070
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HSC. HIGH SPEED MACHINING.
Nowadays, lots of parts are designed using CAD-CAM systems. This type of information is
later post-processed to generate a CNC program, usually made up of a large number of very
short blocks of several mm or just a few tenths of a micron.
In this type of parts, the CNC must be capable to analyze a large number of points in advance
so it can generate a continuous path that goes through (or near) the points of the program
while keeping (the best way possible) the programmed feedrate and the restrictions of
maximum acceleration, jerk, etc of each axis and of the path.
Default HSC mode.
The command to execute programs made up of lots of small blocks, typical of high speed
machining, is carried out with a single instruction #HSC. This function offers several ways
to work; optimizing part surface finish (SURFACE mode) optimizing the contour error
(CONTERROR mode) or the machining feedrate (FAST mode).
The default machining mode is defined by parameter HSCDEFAULTMODE, where Fagor
offers the SURFACE mode as default. The more sophisticated algorithms of the SURFACE
mode obtain more accurate machining. In parallel, the CNC controls machine movements
more smoothly reducing considerably the vibrations due to part geometry or machine
dynamics. Reducing machine vibrations results in higher surface quality of the machined
parts.