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did not have any impact or made any difference to the end part as it was still
rubber like.
5) Silicones, grinding powder, epoxy and epofix hardener – A combination of the
materials tried above are chosen and put together with the base material,
silicone.
Inference – The mixture became hard quite quick and so it became a hard
lump with no fluid properties required for the syringe. It was not possible to
make a part through deposition and test it in this case.
6) Gypsum plaster and epoxy – A combination of plaster and epoxy are mixed
together to be tried with the test bed.
Inference – This combination gave good results on curing and it could be
used to make small models and parts. However, these parts are not that hard
for strength testing purposes.
7) Gypsum plaster, epoxy and epoxy hardener – Epoxy hardener was chosen to
add to the above combination to check if epoxy hardener can improve the
hardness properties we desire.
Inference – Similar to the previous model, this model proved good for making
small, temporary models but they were found to be too brittle and hence not fit
for any mechanical testing.
From the detailed experiments shown above, it is found that silicone stays the same
even when mixed with a number of materials and it does not lose its property. Any
material when mixed with silicone will always end up retaining the properties of
silicone and the resultant material is a rubber like, flexible material which is not
desired for making parts or as an alternative to ABS plastic. Some materials when
being mixed had very less curing time and so they lost the fluid property of a material
required when being used in the machine and so they became quiet hard rubber like
material. This is not good for any material expected to flow out from a small tip of a
nozzle without any presence of external heat source, similar to what exists in the
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