TOOLPATH GENERATOR FOR MULTI MATERIAL FREEFORM FABRICATION (MMFF) PROCESS
Abstract: Fabrication of Rapid
Prototyping (RP) of a mechanical part using multi-material powder-deposition is
carried out to improve
the functional aspect as
well as the
life time. This
RP allows the
multi-material fabrication by modifying the material delivery subsystem.
This paper reports
the fabrication of
multi-material free-form parts,
hereafter will be
abbreviated as MMFF. This paper also presents a method of
tool-path generation. The shape and the size of the part are the input of the
RP-process; typically, this
input is either
a 3D-model from
a CAD system
or a set
of coordinates from
a CMM. In
this report, the input
is obtained from
a CAD system.
The model is
sliced at a
pre-determined thickness interval,
and the results are
a set of
2D sections. A
section contains a
single outer loop
and may have
inner loops. A
tool path is generated
for each section,
and the path
will later be
traversed by a
deposition nozzle. Scanning
gaps between two parallel path is determined based on the
geometry of the loops of the section. Tool path generator also facilitates the inputting
setting data to appropriate the dimension machine capacity.
Author: Toni Pahasto, Susilo
Adi Widyanto
Journal Code: jptmesingg070001
