Hey All.

 I have been trying some methods to simplify complex tubular andirregular parts using inner moulds that could be destroyed easily.

I have tried using polystyrene and other synthetic sponge materials..

but  I have had difficultymelting , burning and dissolving them completely ...

 Anyone ever tried something similar on a less industrial level? 

Check out the link below: 

LINK: http://www.caddedge.com/stratasys/3d-printing-blog