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My 'next' diffusion pump :)
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James Lerch
Greetings All,
No progress on the chamber today, employment interfered... :( Anyway, I found a moment to browse around on e-bay, and I found a Diff Pump I'd like to add to my "wish list", Have a look here: Anyone have a Crane Truck handy? :) Take Care, James Lerch (My telescope construction,testing, and coating site) "Anything that can happen, will happen" -Stephen Pollock from: "Particle Physics for Non-Physicists: A Tour of the Microcosmos" " Press on: nothing in the world can take the place of perseverance. Talent will not; nothing is more common than unsuccessful men with talent. Genius will not; unrewarded genius is almost a proverb. Education will not; the world is full of educated derelicts. Persistence and determination alone are omnipotent. " Calvin Coolidge |
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Darald Bantel
Greetings
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If you want I can send you sketches so you could convert a pickup truck into a light duty bed truck (gin pole) for a poor man's crane truck (grin!). Darald On Tue, 2004-01-27 at 21:52, James Lerch wrote:
Greetings All, |
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arcstarter
--- In VacuumX@..., "James Lerch" <jlerch1@t...> wrote:
Greetings All,Diff Pump I'd like to add to my "wish list", Have a look here:ViewItem&item=2591901588&category=7321 Wow! How many gallons (at $3000/gallon) of oil would that pump take? :) Looks like the bottom got sort of hot. I could imagine a kerosene- fired diffusion pump! -Bill |
Wow! How many gallons (at $3000/gallon) of oil would that pump My first reaction was just plain WOW! For the size mirrors that could be aluminized with that beast the oil is trivial concern. If one really wants a large pump, I have seen the schematics and what I have seen so far does not look terribly difficult to fabricate. Albeit, the one on Ebay is a monster and would cost more to make without some creative thinking and scrounging. Some intermediate size could be quite realistic to fabricate from scratch and I have heard of people doing just this. Dominic-Luc Webb |
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Ken Hunter
Should only cost about $10,000 to fill it up with #704 oil...
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Ken Hunter --- In VacuumX@..., "James Lerch" <jlerch1@t...> wrote:
Greetings All, |
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