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About bajajoaquin

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  1. Induction Heater

    I really wish I had the electronics skills to attempt this. I think it might be kind of like how hot rodders really feared fuel injection when it came onto the scene. Induction heating isn't new technology, and the things to make it happen are available in the marketplace. There's no reason other than experience and technical skill that more people shouldn't be making induction heaters. Both of those are reasonable to acquire for normal people. Keep us posted!
  2. New Induction Forge

    One of the things that is an additional expense on these forges is the cooling setup. You buy the forge, then you need to cool it. As I mentioned above, I bought a used Miller TIG torch for mine. Today, I discovered that it leaks. A new pump is $200, a rebuild kit is $100, but a seal is $17. The gentleman at Depco Pump recommended that I buy a seal for it, and replace it as necessary until the pump fails. Done. I've used it a little bit more, and I've gotta say it's pretty amazing. You go from cold to a forging heat in seconds. Welding heats take longer, but only like 30 seconds. To be able to go from nothing to forging in less time than it takes to turn on all the machines is pretty unbelievable. The down side is that the coil really restricts the shapes and sizes you can work with. As I get more into this, I'll be making some additional coils. I've seen a double (with two different diameters), but I'm wondering if I can make a triple coil. If you could have something like a 1.5" or 2" for fitting flattened leaves, basket twists, etc., a 1.25" coil for a lot of general work, and then a .75" coil for the thin tapers, I think you'd have a really effective set-up.
  3. New Induction Forge

    I was going to put up some pics, but I see that I didn't take many, and the ones I did look like spaghetti. I'll try to take some clear ones now that I have initial setup complete. As I said above, I wouldn't have done this if Eric Jergensen hadn't written that article about his setup. I just didn't have the money to buy one from Mettle Works, and I wouldn't have been confident enough to navigate he various vendors myself. I don't know anything about electronics and electricity scares me. To make a long story short, I contacted him, he shared the name of the vendor and I ordered one. It shows up in a cardboard sleeve, with the crate apparently having broken down around it. I hired an electrician to put in a new 40 amp breaker and outlet, wore the pigtail, and it still worked. While I was doing that, I was figuring out my cooling setup. Eventually I pieced together enough info to figure out how to put together a cooler from second hand materials, but an old Miller Radiator 1 came for sale in my area. I bought it. When it came time to hook it up, I noticed that there were two inlets and three outlets on the forge for coolant. When I asked the vendor about it they said "yes. Hook up three outlets and two inlets." Not super helpful. Again, with the help of Eric, I figured out my routing. The induction coil that comes with the forge oriented vertically. Not knowing how to make one yet, I contacted Mettle Works and ordered a couple. I also told him that I'd boughtdorect and that any insight he could give me would be appreciated but totally above and beyond. He was, of course very gracious and helpful. I tested it out last couple of days and forged my first item on it today. It was a simple leaf key fob from Dave Vogel's CBA. cirriculum. For my first forged product in about four years, I think it came out well. I love the forge. I was able to go to my forge,turn it in, and forge a small item in less time than it would have taken to light my coal forge. In fact, I did it while on a conference call (on mute of course). Would I recommend this path to someone else? Depends. If you have the money spend it to go with a US supplier like Mettle Works. I'm flying without a net and if anything goes wrong I'm out a thousand bucks with no recourse. It was uncomfortable for me to navigate the some of the issues. That would be with the money to have back up. If, however, you just don't have the cash, and you're willing to risk what little you have, it can be done. Its just not the way I would have done it if I'd had another viable option
  4. Forging Tubing

    I'm guessing they you taper from the middle and stretch toward the end? I'd think you want to provide some support for the ends to help keeping them from folding. Posted before I saw all the other responses. Lovely!
  5. Forging Tubing

    How much can you change the cross section of tubing by forging? I'm looking at making a sun-ray pattern grate, and it needs to be easily removed and handed by my wife, so it can't be too heavy. I'd like the rays to taper towards the ends. Bar forged with a taper is out because of that. Could I carefully draw and forge a taper on square tube?
  6. I've wanted to have an induction forge for some time, and had been saving money but they are quite expensive and something always came up: a motorcycle, a classic car, two kids..... It never seemed like I could get the wad of cash together to buy the forge. Following Eric Jergensen's lead, I decided to buy an induction forge direct from a Chinese supplier. I ordered it in early April, and just used it to test heat metal today. More to come, but I'm pretty excited. I still have a way to go to get it fully set up and ready to use, but the main obstacles have been overcome.
  7. It left its mark

    Kinda surprised nobody said "forge a chisel and then tap it out with that!"
  8. re-working and anvil

    Unless that face plate has delaminated, I'd just leave it alone.
  9. So i bought an anvil

    That's an old one! Very nice anvil. I agree that you won't likely find the manufacturer and that it's almost certainly from England prior to 1850. I'll try to remember to pull Anvils in America later and take a look.
  10. I found your follow up article but the link doesn't seem to work for the videos. Can you post them up here?
  11. Smithing in India

    So I've been here in India for a few days now (got in late Saturday night). No blacksmithing yet, as I'm in Bangalore wearing slacks and collared shirts in the office. We did a bit of sight-seeing around the city on Sunday with a couple of guys I work with, and went to the central market, which has everything from fruits and vegetables to spices and flowers, to roofing supplies and machinery. It's crazy and awesome. I brought a camera, but of course forgot a cord, so I'll post up some pictures when I get home of that market, as well as whatever I take on Saturday when I'm at the smithy in Kerala.
  12. 15kva induction forge capacity

    So going back to the question of capacity, is it a question of over-heating, duty cycle, or just speed that identifies the "capacity" of a particular machine? I mean, at some point, 15kw just isn't enough heat to offset the radiant and conductive heat loss, but in stock sizes that we're likely to see in open-die forging these days, what is the limiting factor?
  13. Show me your anvil

    :) I stand corrected!
  14. Smithing in India

    Colored pencils! Love it! In Baja California, I used to bring stickers for the kids. For a while, I worked in the surf industry, so there were an enormous amount of free stickers around. Kids loved 'em. Every time I went on a surf trip, we'd hand out a stack. Surfers did it so much, the main word you would hear in English was "sticker! sticker!" Bangalore is.... not a vacation Mecca. But every Indian I've talked to about Kerala has said something to the effect of, "Indians call it 'God's Country.'" I've not thought much of bringing something back from the smith's shop, but I wonder if he'd be willing to sell me one of his hammers. They sure look different from ours. Probably wouldn't work too well from a standing position, but might be neat to have.
  15. Show me your anvil

    Where did you get that copy? It's also more likely to be for the university proper than a "Jr College." Leland Stanford, Jr. was the guy who started the university, so what is commonly called "Stanford University" is called "Leland Stanford Jr. University." Very interesting that there used to be a blacksmithing class there. Much more recently (early 70s), mechanical engineers were required to take machine ship classes as early prerequisites to their engineering classes. The idea was that they had to actually make stuff so that they later didn't design stuff that couldn't be made Perhaps a blacksmithing class is an earlier version of that same philosophy.