[TheForge] Hydraulic Press

Sat Mar 19 10:24:45 EDT 2011

Exactly what I am after Andy...OVER engineered and SAFE are my initial concerns.
________________________________________
From: theforge-bounces at mailman.qth.net [theforge-bounces at mailman.qth.net] on behalf of Andrew Vida [osan at netlabs.net]
Sent: Saturday, March 19, 2011 12:06 AM
To: Blacksmithing List Sponsored by ABANA
Subject: Re: [TheForge] Hydraulic Press

No doc.  You don't do this with square tubing.  You get yourself a
length of 18"-24" bridge beam and go from there.  Trust me on this one.
  100 tons of energy sprung up in a structure like that is a lot.  If it
lets loose, anything in the way of the flying debris is going to meet an
unpleasant fate.  Start with  good materials - over-engineer the deal,
ESPECIALLY if you are not an engineer capable of calculating the
stresses to a reasonable degree of accuracy.  Better to have an entirely
over-built press that is safe to operate and a PITA to move than to die
or be maimed in an accident.

Mark A. Pesetsky wrote:
> 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.
> ______________________________________________________________
> TheForge mailing list
> Home: http://mailman.qth.net/mailman/listinfo/theforge
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:TheForge at mailman.qth.net
>
> TheForge mail list group photo site is
> http://www.photoworks.com
> Login: blacksmithblacksmith at hotmail.com
> Password: anvil
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> ______________________________________________________________
> TheForge mailing list
> Home: http://mailman.qth.net/mailman/listinfo/theforge
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:TheForge at mailman.qth.net
>
> TheForge mail list group photo site is
> http://www.photoworks.com
> Login: blacksmithblacksmith at hotmail.com
> Password: anvil
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>
______________________________________________________________
TheForge mailing list
Home: http://mailman.qth.net/mailman/listinfo/theforge
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:TheForge at mailman.qth.net

TheForge mail list group photo site is
http://www.photoworks.com
Login: blacksmithblacksmith at hotmail.com
Password: anvil

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html