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Type: Posts; User: Joe Gwinn

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    When something can slide over something else, the...

    When something can slide over something else, the intent of clamping them together is to increase static friction enough that no sliding is possible, to prevent runaway wear. But in practice, it can...
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    Now that I see the setup, I see that the pipe-tap...

    Now that I see the setup, I see that the pipe-tap idea probably won't work, and given the limited space, I think I'd install screw-locking helicoil inserts. This would be the time to increase the...
  3. I've got a Waterloo, awarded by an employer. It...

    I've got a Waterloo, awarded by an employer. It works, but is very tinny.
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    Given that the screws loosened and chewed things...

    Given that the screws loosened and chewed things up, I'd focus on the cast iron material, and not the cap screw material.

    I'd drill out where the M8x1.25 female thread once was, and install a...
  5. I think people are having problems to visualize...

    I think people are having problems to visualize your system. I would suggest posting a dimensioned sketch of your system, annotated with where the banging is heard.
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    Tungsten Carbide, as used in cutting tools: ...

    Tungsten Carbide, as used in cutting tools: 15.6, between lead and gold.

    So, a carbide rod in a steel plumb bob would have the about the same mass density as mercury in steel.
  7. All this reminds me of an event in the 1970s. ...

    All this reminds me of an event in the 1970s. Friends of mine had been looking for an apartment in the Baltimore, MD, area, and came back talking about this apartment complex that would not let them...
  8. Sioux Chief manufacturing has a pretty good paper...

    Sioux Chief manufacturing has a pretty good paper on designing systems with water hammer arresters.

    Supply | Arresters & Trap Primers | Arresters
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    L S Starrett patented it, in 1906. It's US...

    L S Starrett patented it, in 1906. It's US patent number 833,699.

    Go to Google Advanced Patents and enter the number as US833699 for a copy.

    It's Starrett No 87, and lots of eBay listings do...
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    Well, I looked at the comments, and they do...

    Well, I looked at the comments, and they do complain that it's really for Whitworth and Metric (and I do run into Whitworth, and so have a gauge for that, and not by accident), so I'll grant that a...
  11. The classic answer is to cite your equally rigid...

    The classic answer is to cite your equally rigid management, with proposed standard vanilla NDA attached.
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    You may wish to acquire a thread pitch gauge. ...

    You may wish to acquire a thread pitch gauge. Here is one:

    ChgImposs Metric & Imperial & US Screw Gauge SAE Whitworth 55 Degree & Metrisch 60 Degree Thread Pitch Gauge for Industrial Measurement:...
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    What's closest is M12x1.75, which will just fill...

    What's closest is M12x1.75, which will just fill a 0.500" hole. Many hardware stores carry such nuts in RH thread, so could be used for testing.
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    Does using a different brass alloy make any...

    Does using a different brass alloy make any difference (this is a test, so it does not matter if the new allow is suitable for the product).

    I'd try some other make and model of coolant.
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    This one does not look like a good idea. No real...

    This one does not look like a good idea. No real specs, and people had a lot of trouble.



    These are all changes, perhaps improvements. But the OP just wanted a mechanical switch that would...
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    This does not sound at all simple. But a...

    This does not sound at all simple.


    But a HexSeal switch boot is a good idea.
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    Well, actually there is a solution: The McMaster...

    Well, actually there is a solution: The McMaster items are all rated to withstand washdown, so a little coolant will do no harm.
  18. I most often use the scope in an Albrecht keyless...

    I most often use the scope in an Albrecht keyless or Jacobs ball-bearing super chuck, both being mounted on a R8 to J33 arbor, and it certainly works for that. I bet that the R8 collets are not as...
  19. Do you think that the advent of DROs had anything...

    Do you think that the advent of DROs had anything to do with it?




    I have and often use a Skoal 45x centering scope bought many years ago. These were and are still made in Korea. I use it on...
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    Is there space for a MIL-style toggle switch? ...

    Is there space for a MIL-style toggle switch? These are very rugged. If so, machine a adapter plate to accept and mount the switch. Here are some examples: (I've used CK a lot over the years. ...
  21. Do not use a brushed motor, unless it is rated as...

    Do not use a brushed motor, unless it is rated as explosion-proof, even if this is not for a business.

    If this is for use in a business, than there are multiple probably code and/or OSHA...
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    Those switches are largely standardized. But...

    Those switches are largely standardized. But need photos.
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    Yes. Polypropylene too. More generally,...

    Yes. Polypropylene too. More generally, whatever outfits like Rubbermaid make cutting boards and food containers put of will be OK. Cutting boards can be used as a cheap source of raw stock in...
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    Create Tool is located in Wuhan.

    Create Tool is located in Wuhan.
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    I also agree with the use of a sled. I also have...

    I also agree with the use of a sled. I also have a Wilton 8201 14" wood/metal band saw (bought in 2005, identical to the Jet 8201, same parent company), and the first thing I built for it was a...
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