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Type: Posts; User: John Garner

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  1. Replies
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    Those are probably going to take more than a...

    Those are probably going to take more than a little fixing.

    I was expecting the failures to resemble a cartoon KABLOOIE! explosion; the "tubes extruded through the front boiler sheet" look...
  2. jaguar36 -- My experience supports your theses...

    jaguar36 --

    My experience supports your theses of effort and lack of flexibility, making it worthwhile in some situations.

    The primary worthwhile situation is that of 1) a clearly-defined job...
  3. Replies
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    Over the last fifty-some years, the one that...

    Over the last fifty-some years, the one that begins "das machine ist nicht fur gefingerpoken" has amused me.
  4. jarrod -- Rahn was absorbed by Tru-Stone. ...

    jarrod --

    Rahn was absorbed by Tru-Stone. Sometime later, Starrett bought Tru-Stone and merged their own precision stoneware business into Tru-Stone.

    John
  5. Maybe, but they might surprise you. Twenty- some...

    Maybe, but they might surprise you. Twenty- some years ago Heidenhain pulled "circular optical scale" adjustment instructions out of Germany for a late 1950s or early 1960s system fitted to a 24...
  6. Heidenhain bought RSF several years back, so...

    Heidenhain bought RSF several years back, so Heidenhain should be able to tell you how to proceed.
  7. A few years back, my employer contracted the...

    A few years back, my employer contracted the design of an anchor-machine-to-concrete-monolith system to a nearby civil engineering firm. One requirement was that the machine had to be readily...
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    steve45 -- The flathead four bangers were...

    steve45 --

    The flathead four bangers were liquid-cooled ndustrial engines, not aircraft engines. Nevertheless their sparkplugs had 7/8 inch hexes.

    My aircraft sparkplug socket came from a...
  9. Replies
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    1,373

    awander -- Thanks for that tip. I may have a...

    awander --

    Thanks for that tip. I may have a new old socket in my collection.

    John
  10. Replies
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    gbflyer -- The socket-design shortcomings that...

    gbflyer --

    The socket-design shortcomings that I've been told about are 1) socket OD large enough to interfere with cooling fins on some cylinder heads, 2) socket ID too small to clear RF shield...
  11. Out here in Silicon Valley, machine tools in...

    Out here in Silicon Valley, machine tools in commercial use are legally required to be mechanically secured to their foundation well enough to withstand a half-G acceleration through their CM without...
  12. Replies
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    1,373

    Um, an oxymoron? The Plomb socket has an...

    Um, an oxymoron? The Plomb socket has an external square rather than the external hex that's on the majority of sparkplug sockets.
  13. Replies
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    OT: Aircraft Sparkplug Socket Suggestion

    I need a 3/8 inch square drive sparkplug socket to fit aircraft sparkplugs with 7/8 inch hexes. A number of aircraft mechanics have warned me away from several different socket brands that they have...
  14. Two quick thoughts: 1) A worm drive circular saw...

    Two quick thoughts: 1) A worm drive circular saw such as the Skil 77 turns more slowly than a typical "sidewinder" circular saw. 2) A smaller-diameter blade will have a lower cutting speed (Surface...
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    My very-limited experience with laser scanners is...

    My very-limited experience with laser scanners is on medium-to-large objects, in an industrial environment rather than architectural or geographical use. And it's been several years.

    That said,...
  16. Beechem Labs division of Kelley Labratories of...

    Beechem Labs division of Kelley Labratories of Shelby, MI makes layout fluids and a water-washable spotting ink that seem to have escaped almost everyone's notice: 8 ounces of Beechem High Low.
    ...
  17. catalytic -- One of Japan's better makers of...

    catalytic --

    One of Japan's better makers of survey instruments -- Sokkisha then, Sokki now -- used to have a Pulscale division that, in the 1980s, made a DRO system for Moore jig borers. IIRC,...
  18. Replies
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    I've never been a fan of thin shims, especially...

    I've never been a fan of thin shims, especially if they are made of a soft material. What has worked best for me are square-washer-shaped spacers of ground flat stock 3/8 inch to 1/2 inch thick. ...
  19. In my world, the verb form "to clock" means to...

    In my world, the verb form "to clock" means to rotate an object in its mounting plane. The verb form "to tilt" would be used to describe the rotation of an object out of its mounting plane.
  20. gregormarwick -- I'll suggest taking a look at...

    gregormarwick --

    I'll suggest taking a look at Unisorb Installation Technologies website: UNISORB(R) Installation Technologies | Official Website

    I've used their foundation hardware and...
  21. Thread: DRO advice

    by John Garner
    Replies
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    1,880

    If the "you get what you pay for" adage was true,...

    If the "you get what you pay for" adage was true, there would be neither "great buys" nor "con artists".
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    Mr Thermite, Sir -- Can't speak of the High...

    Mr Thermite, Sir --

    Can't speak of the High Spot Blue that sold by today's ITW Dykem, but the original High Spot Blue produced by the Dyestuffs and Chemicals Company of St. Louis, Mo was colored...
  23. GregSY -- Very nice. And thanks for the...

    GregSY --

    Very nice.

    And thanks for the follow-up pictures.

    John
  24. GregSY -- Forty-plus years of working in the...

    GregSY --

    Forty-plus years of working in the launch-vehicle-and-spacecraft industry has given me a mindset that generally favors use of commerically-available hardware over design-and-build...
  25. GregSY -- Take a look at EZ-Lok's 5/16-18 or...

    GregSY --

    Take a look at EZ-Lok's 5/16-18 or 5/16-24 thin-wall inserts: https://www.ezlok.com/assets/documents/dimensional_drawings/DimDwg_319Series.pdf

    John
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