Re: Opinions on $250 cnc machine

--- In CAD_CAM_EDM_DRO@yahoogroups.com, Stephen Wille Padnos
<spadnos@s...> wrote:

>
> turbulatordude wrote:
>
> >I am curious too. it seems that it could be costly from some

suppliers

> >and dirt cheap in bulk.
> >
> >I could not figure out how to determine how much one would need for a
> >cubic foot of pour.
> >
> >Dave
> >
> >
> According to the alumilite website, the density is 0.554 ounces / cubic
> inch.
>
> A cubic foot is 1728 cu in, so it's 940 oz, or 58.75 pounds. It

depends

> a little on the color, but the price (from www.sculpt.com) is around
> $130/gallon, which is 17 pounds. That's roughly $450/cu foot.
>
> At my old business, we used it for various potted parts, and we bought
> it in gallons, pre-dyed (black - easy color to match :) ).
> - Steve
>

Here is that love/hate for the Imperial system. When are ounces
pounds and when are ounces gallons ?

Is the weight (assuming ounces are gallons) different wet than dry ?
how much is lost to curing ?

But, using the $450 cu ft, that would make a 12 x 12 x 1" section
about $38 bux.

Very interesting indeed.

I wonder how it sets ? shrinks or expands ?

I liked the metalic coating one can add.

Dave