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Type: Posts; User: bosleyjr

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  1. Replies
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    Mmmmmm. Walleye.... Yum.

    Mmmmmm. Walleye.... Yum.
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    +1. Not a very commonly needed tool. If you...

    +1. Not a very commonly needed tool. If you don't need 'em, put 'em on eBay.

    From wiki:
    ...
  3. Clearly I didn't read the OP carefully. Sorry. ...

    Clearly I didn't read the OP carefully. Sorry.

    So this is an open well that's 50" ID (is it 50, or the more standard 48"?) and only 20' deep and hits groundwater?

    If you can find all the...
  4. I'd vote against using foam to form a log. I'm...

    I'd vote against using foam to form a log. I'm guessing that you'd like to avoid scratching the flat faces, yes? Using foam creates flexible "log" that can bend and will allow adjacent faces to...
  5. I think that the options are 1) Drill a new...

    I think that the options are
    1) Drill a new well with a new sleeve
    2) Replace the casing (may be hard to get the old casing out, though - easier to drill new).
    3) Use a casing repair sleeve. ...
  6. Thread: Plastikosmd

    by bosleyjr
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    444

    Last post was a year ago, so....

    Last post was a year ago, so....
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    If you are responsible for permanent backup, put...

    If you are responsible for permanent backup, put some media in a shoebox. Tape it shut. Label it "Level 0 backups 07/06/20". Put it in a bank vault. Then do normal backups (HDD, tape, whatever). ...
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    So you have a freezer drawer on the bottom of...

    So you have a freezer drawer on the bottom of your fridge, and an ice compartment in the freezer drawer, and the ice drops into the compartment. With two people, the ice mound in the compartment...
  9. Someone mentioned how thin the Chinesium tanks...

    Someone mentioned how thin the Chinesium tanks were. I looked up ASME tanks on McMaster to get an idea. I think that most folks here may know this but the 200 psi horizontal ASME tank is listed as...
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    The only thing that matters is the weight of...

    The only thing that matters is the weight of water above you. And the pressure of that weight is normalized over the area of your submarine. So its the weight of liquid per unit area that...
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    They'd rather sell you a 115 for 165 bucks. I...

    They'd rather sell you a 115 for 165 bucks. I love flukes (I have an 87-V, and an 8022B). Fell in love with them in Germany in 1980, when I dropped one when walking an i-beam 10 meters above a...
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    Ah, but it does. Kind of. Initially at least,...

    Ah, but it does. Kind of. Initially at least, there's no difference: the water pressure distribution over a glass face is determined by the water depth, and for a given depth the force will be...
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    I think a bit over 70 gallons, but still, about...

    I think a bit over 70 gallons, but still, about 12,500 psi from 600 lbs or so of water. The cool thing is that you could use 1mm diameter tube and you'd have the same pressure, and only about 1.8...
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    So, first of all, calm down and get less pissed...

    So, first of all, calm down and get less pissed off: your equation is correct. That said, this is a fluid STATICS equation. Nothing moving. Fluid dynamics would involve moving fluid.

    Units is a...
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    Not sure if hoop stress is the appropriate label...

    Not sure if hoop stress is the appropriate label for a rectangular tank. In a spherical or cylindrical tank (or a beer can for that matter) the design is to ensure that the stress on the tank walls...
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    OT, but my favorite graffito was "Oedipus, Your...

    OT, but my favorite graffito was "Oedipus, Your mother called."
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    With masks and social distancing, you greatly...

    With masks and social distancing, you greatly reduce your likelihood of infection. So do that.

    Yes, those that ignore these rules are strong candidates for transmitting the disease, increasing...
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    Einstein said that theories should be as simple...

    Einstein said that theories should be as simple as possibly, but not simpler. You're not thinking with correct physics. Force is a result of pressure, not weight. You can lift your car up with a...
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    Yeah, that 150 psi calculation is wild! In...

    Yeah, that 150 psi calculation is wild! In practice, of course, air tanks are spherical or cylindrical (or, for low volumes, there are those kind of flattened flying saucer shaped ones). But the...
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    Well, it's true. Think of this, perhaps. A...

    Well, it's true. Think of this, perhaps. A mercury manometer has the same pressure at the same height of mercury no matter what diameter the manometer tube is. The stress on the tube, however,...
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    Probably - I may have just used 8 lbs as an...

    Probably - I may have just used 8 lbs as an approximation.

    I'd make a point about the foundation, though. Obviously, a thick cement slab gives you great support for the weight. But the front...
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    Physics is always right, but your calculations...

    Physics is always right, but your calculations may not be.
    Let's get the formulae in easy to use form.

    Restating your current design, its 38 x 96 x 72 (depth x length x width).

    Suppose your...
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    Jon, Sorry, this is a zombie thread: last post...

    Jon,
    Sorry, this is a zombie thread: last post prior to yours was 10 years ago.
    Good luck with your mill.
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    metalmagpie's ideas seem really good to me. ...

    metalmagpie's ideas seem really good to me. Here's a video about finish machining a bolster plate ("daisy wheel"). It's for a 5-C, but the plate should be the same size.
    YouTube
  25. Pyrex branded stuff was originally borosilicate...

    Pyrex branded stuff was originally borosilicate glass. Two problems. First is expense, and second is that borosilicate is weaker and scratches easier than "Regular" soda lime glass.

    So what is...
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