On Wed, 04 Feb 2004 06:34:16 GMT, "Tom S" >
wrote:

>
>"Don S" > wrote in message
. com...
>> >
>> > Yes, but remember that psi = pounds per square inch. You have to
>multiply
>>
>> So the options are to increase the leverage or decrease the
>> size of the plate (platen?). In order to get the same volume
>> in the press you could switch from a 24" diameter tube that
>> is 2' high to a 12" tube 4' high.
>
>You didn't work the numbers on that. Halving the diameter and doubling the
>length yields a volume that is _half_ what you started with. Using your
>example, you'd have to increase the height to 8' to retain the same volume.

To decrease the serface area by half, you would need a diameter of
just shy of 17".


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