> Andrew "awakephd" wrote:Files > Etchinator > Impeller.png
>
> <SNIP>
>
> Is this what you have in mind for "the
> best solution"? If not, any chance of a
> drawing to show what you have in mind?
>
I hope this picture conveys the idea.
Also not shown in the hidden detail is a
tapered conical plug in the centre. It
just looked messy and confusing when I
tried to add that to the drawing.
I needs either a lot of experimenting to
get the optimal shape OR someone much
much smarter than I am do some math.
Finally it probably needs some shark
teeth painted on it. Apparently people
dig that kind of thing.