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Any suggestions would be appreciated. Basically, I really like the solid modeling features, the ability to animate movements and the analysis of COSMOS, but I'm on a limited budget. I'm aware of...

Would I necessarily need a tree formation? Can't I just do one at a time? Yes, the part is relatively large, at about 5" x 7". Can't I just have a bunch of wax (or foam) molds made up of the part...

I've heard of the soluable wax stuff, but could never find any. Basically, it would disolve with water after I have cast the part, correct? Does anyone happen to know of a good cheap supplier for...

What would the "core" be made out of though? The reason I ask is that the large hole is not straight through and there are protrusions inside which would prevent the core from being able to slide...

But colin said that the wax is first melted out before the metal is poured in. So which way is it done? I'm confused now. If it's done colin's way, couldn't the wax be reused? Or is it tost after...

Cool, I'll try and find some jewelry supply stores. Hmmm, I wonder if my local Tall Mouse (art/craft store) has this stuff? Seems like the lost wax process is also probably cheaper than foam since...

That was awesome indeed! Gave me a very good sense of how this investment casting works. We need more articles like this!!

Interesting process... Everything I have read seems to indicate that the wax (or foam for that matter) is vaporized by the actual pouring of the metal. But your process is a little different. So it...

If not 6061 and not cut up engine heads, then what aluminum do I use? I want this thing to be as high quality as possible so I don't mind purchasing new ingots. What type of aluminum is used for...

I would be using aluminum (6061??) as the material. The intake I'm taking about is here:

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So would investment (lost wax) casting be the best method to acheive the bore? ...

I've got an existing part that I would like to make a mold out of so that I can ultimately cast the same part many times. The existing part is a small aluminum intake manifold with a large bore...