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I Forge Iron


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Everything posted by JHCC

  1. Now I’m starting to think about giving mokume-gane a try. The little furnace I having coming in a month or so goes up to 2,000°F, which I think should suffice.
  2. Bright orange to yellow probably isn’t hot enough. Have you done other forge welds before?
  3. I have an old ball peen with grooves cut in the face with a thin abrasive cutoff disc. Works great. Finished up four knitting bowls for a customer. Took a minute to modify a pair of (broken) needle-nose pliers into a pigtail twister.
  4. Okay, did a little quick research, and it seems that the relevant law is the Currency Act, which states in part: However, US coins are NOT legal tender in Canada (officially, although US and Canadian coins are both in common use on the other side of the border from their respective intended zones of use), so Canadian mokume gane makers can presumably use US quarters with impunity.
  5. I don't know what the law is in Canada, but the relevant United States federal law is 18 USC 331: The key word here is fraudulently -- that is, with the intent to deceive for criminal purposes. In other words, it's perfectly legitimate to destroy or deface currency so long as you're not doing that with criminal intent. For example, if you add a mint mark to a coin to make it appear more rare and therefore more valuable to a collector, that could be a violation of this law. Using coins as raw material for something else that you are not then claiming to be legal tender is just fine.
  6. Yes, the larger one on the left is the base for the propane tank, and the four smaller ones will hold the oxygen bottle(s). I’ve decided to start with a single bottle and add another later if just one is insufficient for my needs; I really don’t have the room for big bulk cylinders nor the means to transport them safely. Jobtiel1, I gather that tiled stoves are not uncommon in central and eastern Europe, often covering rather elaborate flue configurations designed to capture and slowly release all the heat of combustion that would otherwise go up the chimney.
  7. Made some components for a welding cart: And some replacements for the missing knobs for the cover on my vertical bandsaw: And forged some steel knitting bowls that are currently sitting in a vinegar bath and are therefore not ready for their closeup.
  8. The design that's coming together in my mind would accommodate a 7" diameter oxygen cylinder, so anything from a size 60 (24" high) to size 150 (46" high). I'll probably start with an 80 (31" high) or a 125 (42" high); haven't quite made up my mind. I'm certainly planning to keep the center of gravity as low as possible, including using some pretty beefy steel for its various structures.
  9. Very nice gift! A keychain leaf would certainly be an appropriate thank-you. I haven't done much brass forging myself, but I gather that you have to be careful about forging it too hot, as it can crumble. It loses heat quickly.
  10. Thanks, guys. I see the value of stationary tanks (especially large ones), but I’m not sure where in my garage would be a convenient place to dedicate to such storage. As I’ve mentioned elsewhere, almost everything on my shop is mobile (except the anvil, vise, and coal forge) and packs down into a fairly small space, so I’m rearranging my space every time I forge anyway. As a hobbyist, I’ll not be investing in big tanks anyway, at least not initially. I’m happy to reconfigure as necessary, when (and if) the time comes.
  11. pnut, lime is calcium hydroxide (and/or calcium oxide and other stuff). Hygroscopic means that a substance absorbs moisture from the air, either by absorbing it (pulling the water molecules inside it) or by adsorbing it (attracting the water molecules to its surface). However, in neither case is there a chemical reaction between the substance and the moisture, and the water molecules can be driven off by heating or by placing in a desiccating environment.
  12. Thank you all. Frosty, May's "hers" is her husband Adam, proud owner of the (display-only) World War Z "lobo" she commissioned for his birthday a couple of years ago:
  13. And that’s what I wanted to know! Many thanks! Since I’m doing oxy-propane, I’ll be getting the 100QF-F model. I like your cart/stand, and I’m thinking about mounting such a setup (with the foot pedal for hands-free operation) on the corner of the cart I’ll be making for the gas cylinders. Unless there’s some reason not to?
  14. That's a very nice little blade, WRLD. I had a couple of minor criticisms of some small details, but on looking more closely, I realized that what I'd seen as flaws were actually problems with the photos. Looking forward to seeing more.
  15. My cousin May was just diagnosed with stage 1 breast cancer, very small and no sign of abnormal lymph nodes, so that's all really good news. We don't have more information than that right now, as they are waiting for more test results to come back. By the end of next week We should know more about treatment plan and such. In the mean time, prayers would be appreciated.
  16. Lime is also hygroscopic, absorbing moisture from the surrounding air. That can affect heat transfer as well.
  17. Assuming that you're just letting it cool in still air, that's normalizing.
  18. My plumbing experience is limited to replacing all the toilets in our house and the periodic unclogging of the sewer that occasionally backs up in our basement. There was also a rather dramatic backup of the kitchen sink drain when someone tried to get rid of some exceptionally fibrous vegetable scraps through the in-sink garbage disposal. Thank goodness for rubber boots.
  19. As discussed in another thread, I've got an oxy-propane rig on order to expand my shop capacity for cutting, heating, and brazing (although not welding). A question there that remains unanswered concerns gas savers: specifically, whether I should go with a Smith for about $175: or a Gentech for about $70-$100 less: Any thoughts/ideas/recommendations/warnings?
  20. The Armitages started adding pritchell holes in about 1830. If the hole in yours is punched (which you can tell by the swelling around the hole on the underside), that moves your date range to 1830-1835. If it is drilled (no swelling, and possibly with drill marks on the inside of the hole), that means it's probably from 1820-1830 and was retrofitted later.
  21. Keeping in mind that there are two types of junk: junk information that you get rid of, and junk material that you save for some future project!
  22. No thanks. Sitting on the Mahoning-Trumbull-Ellsworth association, I've got all the clay I need. (I'd be happy to come visit anyway, though, once I'm travelling for business again.) I do, but they're usually things that would get me banned from IFI.
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