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Comically oversized gauge

Post questions and info about hybrid (compressed gas with fuel) powered cannons here. This includes discussion about fuels, ratios, ignition systems, build types, safety, and anything else relevant.
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Comically oversized gauge

Unread postAuthor: Lockednloaded » Mon Jan 31, 2011 10:23 pm

I've been working on a hybrid that will use manometric metering, so I needed a precise LP gauge, I though I found the perfect one, but I ignored the size...

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Thats a 3" Cleanout Cap and an American penny next to my gauge.

Good news is, its extremely accurate, I may have to work around the size of the bugger
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Unread postAuthor: jackssmirkingrevenge » Mon Jan 31, 2011 11:34 pm

Will you be wearing a red nose while firing, and will the cannon fall to pieces after each shot :D

Maybe it's made for the older spudder, like large print books?
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Unread postAuthor: Lockednloaded » Mon Jan 31, 2011 11:41 pm

the good thing is, I get a full refund, I just pay for shipping, but the replacement smaller gauge is much cheaper.
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Unread postAuthor: hi » Mon Jan 31, 2011 11:51 pm

I have one like that, about the same size. My grandfather found it at a yard sale and bought it for me. It works just fine :lol:
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"physics, gravity, and law enforcement are the only things that prevent me from operating at my full potential" - not sure, but i like the quote

you know you are not an engineer if you have to remind yourself "left loosy righty tighty"
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Unread postAuthor: dewey-1 » Tue Feb 01, 2011 10:56 am

jackssmirkingrevenge wrote:Maybe it's made for the older spudder, like large print books?


Hey now, I resemble that remark! :D

See if JSR ever remembers that statement from a comedy show?
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Unread postAuthor: jackssmirkingrevenge » Tue Feb 01, 2011 11:44 am

Would you believe that as I wrote it I thought "Hmmm, I hope Duane doesn't see it and take it personally" :oops:

dewey-1 wrote:See if JSR ever remembers that statement from a comedy show?


I wasn't around to remember it, but I know it's the Three Stooges ;)
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Unread postAuthor: Hotwired » Tue Feb 01, 2011 12:07 pm

The bigger the better with analogue gauges.

Of course it relies on the gauge being accurate enough in the first place but you can get a much better reading off a 10cm dial than a 4cm dial (assuming other factors are kept the same).
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Unread postAuthor: jimmy101 » Tue Feb 01, 2011 2:55 pm

Is that thing oil (or water) filled? Bet it weighs a fair amount.

Sigh, I remember the days when people were actually taught the correct way to read a dial face, parallax rings and clever stuff like that. These days everything is boring old digital display and it takes all the skill (and creativity) out of reading an instrument. Digital also gives an entirely false sense of the accuracy of the instrument. With a mechanical dial-faced gauge you could see that how you looked at the dial changed the reading, and if you tapped on the dial it would often change its reading. So people had a much better feeling for the inaccuracies inherent in any measuring device.



p.s. Hey you kids get off'a my lawn!
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Unread postAuthor: Lockednloaded » Tue Feb 01, 2011 3:05 pm

its glycerin filled, so it weighs about five pounds. A cool thing about it is that there is a switch that zeroes to gauge at the top
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