[TheForge] Hydraulic Press

[Mark A. Pesetsky]

Hello All,

Haven't been here in quite a while but I have a question that I am hoping one of the experts here can answer. I am embarking on building a hydraulic press. I have a 100 Ton cylinder and I need to know which square tubing would handle this load. I did an exhaustive internet search but found nothing. My partner and I are thinking 1/2" wall thickness 4X4 or 6X6 should do the trick. Any suggestions, charts, or general help would be greatly appreciated.

Thanks Guys
Mark 

________________________________________
From: theforge-bounces at mailman.qth.net [theforge-bounces at mailman.qth.net] on behalf of Andrew Vida [osan at netlabs.net]
Sent: Friday, March 18, 2011 9:18 PM
To: Blacksmithing List Sponsored by ABANA
Subject: Re: [TheForge] now Japanese nuke plants OT: POL:

peter fels wrote:
> On Mar 18, 2011, at 8:08 AM, Andrew Vida wrote:
>
>>
>> James Binnion wrote:
>>> On Mar 17, 2011, at 11:47 AM, peter fels wrote:
>>>
>>>> That's changing, both in the cost and efficiency of solar cells
>>>> etc,
>>> Alternative energy sources aren't even close by orders of magnitude
>>> yet, yes they are getting better but they still cannot compete in
>>> scale or cost with petro or nuke.
>
> Petro is a diminishing resource and a serious balance of payments problem.
>  If you count  construction cost, waste disposal ,decommissioning, risk and cleanup in the nuke cost..
> ...it doesn't look so good.
>> A truth the nuts and twigs crowd flatly refuse to acknowledge.  If they
>> want to return to the stone age, I support them fully so long as they
>> leave the rest of us to live as we see fit.  Unfortunately, the
>> watermelon marxists seem ill-contented to  leave us alone.
>
> Does the name calling make you feel better Andy?

        Much. :)

> What's a watermelon Marksist BTW?

        Green on the outside, red on the inside. :)^2

> The idea is, we have a serious problem and we need
>  to start working on it real hard now,
> while we still have the margin to do so.

        Don't hold your breath.  The problem is manifold.  First, those in
power want to stay there, whether in the corporate or governmental
worlds... increasingly in both as we are a defacto quasi-fascist state
now :(

        This being the case, government sets market regulation such that
barriers to entry in a given industry become nearly impossibly high and
the establishment of new industries that might cannibalize the extant
ones are prohibited by regulation.  For example, were I to brilliantly
develop a high temperature superconducting material good to well over
the boiling point of water by spilling red wine on iron (this has been
recently claimed by Japanese researchers), one of three things would
befall me to prevent my capitalizing on this invention that would change
the face of life on the planet in ways most people cannot imagine: I
would be simply shut out by regulation, I would be bought out by the
competition or, refusing to submit, I would be executed.  The great
blessing of "regulation" has a purpose: to maintain seats of economic
and political power.  There is no other purpose, all grotesquely
distorted proclamations to the contrary notwithstanding.

        This being the case, those at the top have no interest in changing the
game until such time as they extract the maximum market value from the
existing investments.  The collateral benefit is that conditions in the
world go so far to hell that those in power now use that as the pretext
for further arrogation of power to which they are in no way entitled.
Whether "the people" grant such expansion of authority is irrelevant to
the question of legitimacy because the grant would be made under
fraudulent circumstances.  History provides us with examples of this old
trick in such abundance as to herniate the mind before assuming 5% of
them in one's thoughts.

>>      And it is not "green", so what's the point - at least until the oil
>> spigots run dead-dry?
>
> It's somewhat cleaner and we have a lot of it so we don't have to go further into debt to the Arabs.
> The nat gas can act as a transitional fuel.
>  Burning fossil fuels when we are going to need them as feedstocks is awful shortsighted.

        I was being a bit facetious about the "green" thing, which is pure
idiocy and provably non-viable on the whole.  When a unit of energy a
consumer uses requires more than a unit of energy to produce, you can
rest easy in the knowledge that you do not have a viable system at hand.

That all said, I must declare that good old fashioned home made ginger
tea is one of life's fair and simple pleasures.
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