What are you making these days? Some fab shop pics from our place - Page 7
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  1. #121
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    Free loo roll holder with every roll!

  2. #122
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    Well..veering off the main theme of this thread a tad as I'm sheltered in place, hiding from Covid-19, and am between crossword puzzles, I though I'd share this bit of nonsense.

    My youngest son and I made this 20 years ago + for a grade school science challenge.

    sub.jpg

    The submarine was to be placed into a tank of water, submerge to the bottom then surface, all by itself..with no outside fiddling.

    When placed in the tank of water, a Alka-Seltzer tablet covering a hole soon dissolved which allowed water to enter the sub and sink it. As the sub sank, one of the brass vent tubes sticking out of the conning tower allowed water to enter a chamber which held another Alka-Seltzer tablet. This tablet held a small string that kept a lead weight tucked underneath the sub and gave it weight to allow it to sink.

    After the sub sunk and was resting on the bottom the Alka-Seltzer tablet holding the weight started dissolving. When it fully dissolved, the weight was disconnected from the sub and it now floated to the top of the tank via natural buoyancy...magic to the kiddies for sure.

    Can you still get Alka-Seltzer tablets?

    Stuart

  3. #123
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    That is an awesome middle school science project!

    Quote Originally Posted by atomarc View Post
    Can you still get Alka-Seltzer tablets?
    Yes:

    screenshot_20200321-155816_chrome.jpg

  4. #124
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    Quote Originally Posted by johfoster View Post
    Here is that fireplace from my last post finished.
    Attachment 282011
    Attachment 282012
    I just have to say WTF to that. I suppose I don't have modern tastes. Looks like it would be real messy to remove the ashes.

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  6. #125
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    Not my taste either but your workmanship looks excellent.

    A question though..doesn't cement spall and explode when subject to heat such as a fire. I know it does if you hit it with a torch.

    Stuart

  7. #126
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    Quote Originally Posted by Dualkit View Post
    I just have to say WTF to that. I suppose I don't have modern tastes. Looks like it would be real messy to remove the ashes.
    Not everyone has the same tastes thats fine. It is definitely a modern home. Not sure about the ashes removal, but they probably just sweep them up with a dust pan I figure. Keep in mind that where we are in AZ there are many more +110 degree days than -32 degree days so it won't get used for 9 months out of the year, and won't ever NEED to be a dependable source of heat.

    Quote Originally Posted by atomarc View Post
    Not my taste either but your workmanship looks excellent.

    A question though..doesn't cement spall and explode when subject to heat such as a fire. I know it does if you hit it with a torch.

    Stuart
    Thank-you. Yes it certainly will degrade the cement, and we made sure that the homeowner knew this is going to happen. We have discussed adding a plate steel tray for the fire to burn over to protect the concrete. No fireplace is without maintenance and repairs over time, but this will likely wear much faster than a firebrick base would. Like I said above though we are in the desert and fireplaces don't get used for most of the year.

  8. #127
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    Made this part today


    Sent from my iPhone using Tapatalk Pro

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  10. #128
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    I designed and built this fixture to run these little guys
    Attached Thumbnails Attached Thumbnails 704bae78-bf13-440a-b877-446612000ab1.jpg  

  11. #129
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    Quote Originally Posted by Spruewell View Post
    I designed and built this fixture to run these little guys

    That looks interesting, but really can't hardly see it.


    -----------------

    Think Snow Eh!
    Ox

  12. #130
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    Quote Originally Posted by RJT View Post
    Making crankshafts. Dual centers on each end so we can turn and grind each journal between centers. Then wire Edm off each end. Finished grinding after heat treat. Finished part on right side of first picture with end slug that had been removed.

    Sent from my moto z3 using Tapatalk
    I like the two centers thing. Have had some parts in the past that would have been much easier than putting an offset tool on the end. I'm curious why you start with such a large diameter piece of stock though?

  13. #131
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    If the sky really is falling.....I'm getting under this 115' double box girder 30ton crane currently on the floor. Biggest thing we've made.

    Ontario is closing all non essential businesses.....but about everything except your favourite nail salon is listed as essential. Construction, finance, all manufacturing, distribution, insurance, mining, it'd be a shorter list to identify what isn't essential. So we're going to crank it, open for business, practice the key behaviours and start dialing for dollars (selling)

    ]

  14. #132
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    That's a fixture in the 3 jaw chuck with the part shape (double D) wire edmed through it (slip fit ) and part held in with set screws. Part is held by either end to turn journal in center for this operation.
    Video show next operation with part reversed in fixture turning end journal.

    YouTube


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