We strongly advise against
using the Center(1) and Side(2) machining strategy on
areas already partially machined:
- The Center(1) and Side(2) machining strategy must be
used for a first roughing only (no rework) and when the pockets to
process are exempt of machining: when the pockets are already
partially machined, the material left may not be sufficient to
create a center path on some level, thus preventing the creation of
a side path on the same level. This may result in collisions or
tool breakage while machining lower levels.
- Generally speaking, this warning applies to any configuration
with areas to machine on a fine material thickness (i.e. less than
Remaining thickness for sides) on the upper levels and a larger
material thickness (i.e. greater than Remaining thickness for
sides) on lower levels.
- This warning applies not only to rework but also to the cases
where the rough stock matches the configuration above.
- A side machining can be guaranteed only if the thickness of the
material to remove on any point is higher than the Remaining
thickness for sides.
A check is done to avoid overcut situations: If a pass in a side
machining path shows an overcut situation, this pass and the passes
below are removed. This may occur while using the Center(1)
and Side(2) (Machining strategy tab) on areas
already partially machined and while using the Pockets
only (Strategy tab, Machining mode) or
the Center zone order (Geometry tab) and
Machine only ordered areas (context menu of
Center zone order). This may lead to unmachined
areas.
A side machining tool path may be created for the whole part.
This tool path is limited either by a check element or a limit
line.