@Ibrahim_Kocaalioglu posted here about 3D printing materials yesterday. The thread contained a link to this which I call “Lost Wax Investment Casting” Which I have singled out for this thread. (See Below)
Basically you substitute PLA for the Wax
It had occurred to me to try and develop a method of printing an object with wax for just such an eventuality, never even considered the idea of using the PLA directly as a substitute for the wax! It really pays to be a member of such a group as this…
Also linking this back to a recent thread on printing components for radio controlled vehicles, https://plus.google.com/u/0/104012815742569035024/posts/ge1hbZvyu9d
I note the floor pan of some radio controlled racing cars is made from aluminium. This method of “lost wax investment casting” would lend itself to printing that RC component I reckon.