I'm ashamed of myself for not coming up with this sooner. This has been
done. You can buy one retail at major sporting goods stores for a few
hundred bucks, a baseball pitching machine.

-Denny



> > Seriously though, what's the purpose of such a thing? Mr. Tweed
> > beat me to the math, but dumping 8 horsepower into a brick in less
> > than a tenth of a second is a pretty non-trivial task
>
> And thanks to Mr Tweed for those maths and construction ideas. The
> pressure he's talking about doesn't seem so high
>
> Actually I do have a compressor for something else, which is maybe
> why I keep thinking air-gun. A percussive force doesn't sit easily with
> me, mainly because if it all works this sled could be fired 1000 times
> a day most days. I'm sure metal fatigue would be a factor. Somebody's
> eventually going to get a faceful of sled and I'll get a faceful of fist
>
> I can't say exactly what the application is. It's legitimate though, but
> a niche market. So no, you won't all want one ;-)
>
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