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I Forge Iron

Judson Yaggy

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Posts posted by Judson Yaggy

  1. Here's a not great photo (but you can get some ideas from it) of a 2 sided slitting punch for under a punch press. The spring loaded side bars self-center. A second operation is required to drift/push out the rag. post-6738-098528000 1283257874_thumb.jpg

  2. I too work professionally in smaller spaces, 900 sq. ft. tops. It's either just me or me and one other guy in the next room. For all the disadvantages of a smaller shop it is quite easy to change out the air in the ENTIRE shop. Get a wall or roof mounted power vent, buy a big one. Every time you reach for a grinder, turn on the vent. It should be strong enough to suck out all the grinder stuff light enough to float into small openings (also strong enough to suck off your hat). Cover the electronics while grinding or locate upwind of the grinder/vent. Let it run for a little while after stopping. Another way to keep down the dust is to vacuum the floor with a HEPA rated vac every day/week/other. I've got no science to back up this claim but I suspect that feet can kick up as much left over grinder swaff as the original abrasive activity did. And never mind damaging the equipment, what about all those super fine particles getting into our lungs?

  3. Practice is what makes a Hofi hammer better. If you get one, you may practice, forge a little bit every day. That's what makes you a good smith. Of course you can forge every day with a $5 flea market hammer and become a master too, but spending $100 makes you want to not have wasted your money. The Hofi hammer also has an ergonomic theory attached to it and that may be what you are really asking- why is it a famous style of hammer? Because he is the first one to develop a hammer AND theory in conjunction AND MARKET THE HECK out of it. This is a good thing for blacksmithing wether you like his technique or not as it has both gotten more folks interested in the body mechanics of hammering and made some of the other folks who have a hammer "theory" sit up and take notice.

  4. I've always made them about 4" high, not sure where I got that number but have never had a complaint. Of course around here most folks have wood stoves or some other system to do the real work, fireplaces in this day and age are purely decorative and therefor performance is secondary to appearance. Seems that most (rich) people that are buying hand forged fireplace accessories wouldn't know a good fire if it bit them, so add that fact into your functionality/marketing equation.

  5. I'm going off of memory here but I recall they made 25, 50, 75, 100, 125, 150 and 200# hammers. Two guys around here have a 50 and 75 but I don't recall the letters, my 150# hammer is a model E. The early ones were called Dupont, later Fairbanks, and I think there was a Canadian Fairbanks line as well. The letter designations may not have been the same from different eras. They were made here in Vermont and I've seen a number of them but have never seen one with a bottom die holder like that, usually they have a fairly normal sow block/dovetail set up. You may have a later model. The letter on mine is on the side of the frame at about chest hight.

  6. Top quality anvil in very good condition in a great size for that price? Outstanding purchase. Well done. May be the only anvil you ever need. (Not want, need.) Folks who say they can't find an anvil should read the posts regarding Dave's search for a clue.

  7. That's great Dennis, my parents gave me an anvil for my high-school grad as well. Of course that was 17 years ago but I had many happy hours pounding away on it and now I'm almost making a reasonable living working steel! By the way what's the tool with the cast iron frame off to the left in the last photo?

  8. Not a bad price and if it won't do the job you can resell for the same price or perhaps a profit. I suspect if in good condition it will do the work you are talking about. The old presses do not follow the same numbering system that the new imported ones do, so check the actual specs (screw diam., throw, fly weight, etc.) against that chart Old World Anvils or Blacksmith's Depot has on their press sizes. I have an antique Perkins #4, it's at least as big as what they now call a #6, and the castings are WAY heavier. My press would easily do the work you are describing, but be sure to make yourself a good stripper and figure out a way to cool the chisel for slitting that 1.5" stock. Hope this helps.

  9. I'll add another vote for a bench dog that slips into the pritchell hole, not the most bomb proof hold down but simple and fast, does the job. Also you can make one with just a forge and anvil, should take 6-10 heats depending. Tighten by hitting on the top, loosen by tapping horizontally on the back of the dog. post-6738-000178400 1275858779_thumb.jpg post-6738-085790900 1275858793_thumb.jpgpost-6738-046037700 1275858853_thumb.jpgpost-6738-098331700 1275858878_thumb.jpgpost-6738-054235700 1275858899_thumb.jpg

  10. Beth- I'll add my voice to what seems to be the consensus. It's doable but a little hard on the machine (within most machines' working limits) and a little rougher on the smith. If it's for inside work you may need to heat the stuff anyway or chemically patina to restore the "black" look as cold hammering will blow off the scale.

  11. You should get yourself a copy of "Pounding Out The Profits", all kinds of cool stuff like this in there. To answer your question, yes it would work to some extent, they even made some along the lines you're thinking of, check out this old machine. http://sandersoniron.com/JoelWeb%20Page%205-studio-machines-hackney.htm

    You can also search Google Patents for "atmospheric hammer" and you'll find lots of stuff like this http://www.google.com/patents?id=ew4AAAAAEBAJ&pg=PA1&dq=atmospheric+hammer&source=gbs_selected_pages&cad=1#v=onepage&q&f=false

    I'm not 100% sure but it seems to me that they didn't make these styles much past the early 1900's. They were superseded by mechanical spring hammers and self-contained hammers. Probably a reason for that. Great hammer to anvil ratio by the way.

  12. Slightly off topic but there's a 4b on ebay right now.

    http://cgi.ebay.com/400-LBS-Nazel-Model-4B-Pneumatic-Forging-HammerAir/380231186236cmd=ViewItem&pt=LH_DefaultDomain_0&hash=item58878b773c#ht_8158wt_941

    Not a bad price currently but they say they ran it, and the photos show no dies in the machine. Hope they knew better and pulled them out after the fact.

  13. My local steel yard stocks uncoated pipe (no paint), if you are going to be forging a lot it's worth looking for as the paint on black iron smells nasty as it burns. DO NOT use galvanized pipe, the toxic fumes could kill you.

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