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I Forge Iron

LarryFahnoe

2023 Donor
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Everything posted by LarryFahnoe

  1. I think you're getting some sage advice BMTU, but I wouldn't be surprised if you were still feeling a bit overwhelmed. I class myself as a beginner and find that when I take classes that it is very easy for me to get overwhelmed and discouraged that my project is not coming out properly. I have found, and David (Goods) spelled it out a couple of posts back, that for my mind, I need to see step by step sketches because I get lost easily watching a demo and then going back to the forge to try it. David's suggestion to sketch the steps and calculations helps tremendously and is often what I end up doing during and after a class. The key it seems to me is to turn all these abstract concepts into muscular memories that you can then rely upon. Watching on youtube or reading a description, you still need to get it into a form that fits into your mind, and then ultimately your hands and eyes. Sketching may seem so old fashioned in the digital age, but is really a wonderful skill to develop for both learning and note taking. I hear the frustration, but don't give up, you'll get there just as George and others are encouraging you! --Larry
  2. Well the idea of hot smoke generating a moving magnetic field was curious sounding to me, so after I didn't come up with much of an explanation with some general searches, I thought, this might be an interesting question to put to ChatGPT. I didn't know what to expect, but this is what came back. Curious though as the explanation seems to require a moving magnetic field, but I'm guessing that these are related phenomena. --Larry My question: how does hot smoke moving through a stove pipe generate a moving magnetic field? ChatGPT's response: The generation of a moving magnetic field by hot smoke moving through a stove pipe is a phenomenon known as the "thermomagnetic effect" or "magneto-thermoelectric effect." This effect arises due to the combination of thermal gradients and the presence of a magnetic field. When hot smoke flows through a stove pipe, it creates a temperature gradient along the pipe. This temperature gradient causes the free electrons in the material of the pipe to move, resulting in the accumulation of charge at one end of the pipe and the depletion of charge at the other end. This accumulation of charge creates an electric field along the pipe. Now, if a magnetic field is applied perpendicular to the direction of the electric field (i.e., perpendicular to the stove pipe), the Lorentz force acts on the moving charge carriers (electrons) due to their motion in the presence of the magnetic field. This force causes the electrons to experience a sideways deflection, resulting in a buildup of charge on one side of the pipe and a deficit on the other side. This charge separation creates an additional electric field perpendicular to both the temperature gradient and the applied magnetic field. The combination of these electric fields results in the generation of a current perpendicular to both the temperature gradient and the magnetic field. According to Ampère's law, a current generates a magnetic field around it. Therefore, the flow of hot smoke through the stove pipe generates a moving magnetic field perpendicular to both the temperature gradient and the direction of smoke flow. This phenomenon is often studied in the field of magnetohydrodynamics, which deals with the behavior of electrically conducting fluids (such as the hot smoke in this case) in the presence of magnetic fields. References: 1. Cheng, K. S. (2010). Fundamentals of Engineering Magnetohydrodynamics. World Scientific. 2. Davidson, P. A. (2001). An Introduction to Magnetohydrodynamics. Cambridge University Press.
  3. Aric lots of fun to go back over the progression on your Beastie. Encouraging too to think about how some projects wind up taking a looong time to come to life! Years back I started on a photographer...someday, parts of his head live in a box and his camera keeps an eye on me. I think your experiments with the muzzle/jaw area are moving in interesting directions, will certainly look forward to seeing how it unfurls itself! --Larry
  4. Sometimes I live under a rock (even though I have a background in IT), so your mention of AI tracking piqued my curiosity. While it was behaving itself I thought it was quite effective, providing much more of a sense of the space you're working in. If you had a static camera then I think the reheats would get tiresome, but with the tracking it really provided much more of a sense of just how much time goes into this particular project. One of your youtube commenters notes that you make it feel very approachable & I'd guess that leaving the reheats in might reinforce that for her. For me though, just thinking about what that chunk of 4140 weighs, I have a tough time visualizing myself taking that on. That said, you do make it approachable by giving the sense of continuity with (what appears to be) minimal things edited out. I think the camera tracking also mimics what a viewer might do if they were in the trailer with you, following you around rather than being constrained to a single perspective. Out of curiosity, what were you fiddling with up on the wall above the hammer rack? It appeared that you were using your phone to control the Obsbot camera. --Larry
  5. Another helpful video Jennifer, thank you! I'm a long way from attempting something like this, but I very much appreciate being able to learn from your process and explanation. I thought the AI tracking was quite interesting in the first chunk of the video, but it seemed to go a little wonky after a while...wonder if it might be sensitive to heat in the trailer? It was a shame to loose your audio commentary in the later parts of the video. But minor kinks aside, you give lots to chew on. --Larry
  6. JDW, curious about how the blade in that Allpax gasket cutter does with the stainless in the gasket material? Looks like a pretty robust gasket cutter! --Larry
  7. "... I don't want a pickle Just want to ride on my motorsickle ..." Thanks Arlo!
  8. Mr Moto is a delight Scott! If I may & akin to Shainarue's encouragement, consider going after the parts that require more of your manipulation to achieve the look you're seeking? The challenge being what it took to coax the image out of the parts. --Larry
  9. Yep, the classic Kokopelli is arch-backed, but I think flute is often downward. The trickster. Thanks for all the kind comments!! --Larry
  10. Thanks Scott! My first attempt at a sculpture like that with the idea of conveying motion. --Larry
  11. That's a very good point Jerry, sometimes I engage the keyboard without allowing sufficient time for the synapses to complete firing... Still, we've got a car-load of the new Hardy Wheat & Oats to get ground... --Larry
  12. This little guy is a few years old, but I still smile when I recall him standing on his own for the first time. As I worked on him I saw a Kokopelli-like fellow emerging but later on have begun to think he's also got a bit of a Mardi Gras flavor...who knows? There are so many neat sculptures shared here I wanted to add to the mix even if it is not recent. Some additional photos and thoughts written at the time I made him: https://www.fahnoetech.com/mr-k/ --Larry
  13. I can only hope the hammer mill isn't processing food products, or if so that there is a pretty good magnetic separator in place! I think your little guy is just delightful Scott! --Larry
  14. Pretty sure that lathe faceplates would all be RH threads. LH would lead to unwelcome excitement I would think! --Larry
  15. Nice to see the railing in situ John, I was having trouble visualizing how you would use it earlier. Very unique & creative, should suit an artistic sort just nicely! How does the hand feel as it moves over the two overlaps? --Larry
  16. The subtlety of the over/under and asymmetry are quite nice. Well done John! --Larry
  17. Our (wife's and mine) hands get cracks in the winter as well. While not a means of prevention, super glue works well to close the cracks up. I find that if I spread the crack open, drip in a little cyanoacrylate & then leave it alone for 15-20 min it does a good job. Generally speaking, less is more when it comes to super glue, so a thin coating around the cracked area rather than thick is helpful. Done right it seems to heal up well and certainly beats the discomfort of the original crack! I believe super glue was used during Viet Nam as a field expedient wound closure. --Larry
  18. Aric, just another person's perspective on navigating the complexities of health insurance. I'm in Minnesota and have been self employed periodically though now mostly retired. I have found Minnesota's healthcare marketplace (ACA exchange) to be quite helpful if for no other reason than to be able to easily compare plans side by side. I've purchased our health insurance through the exchange for several years now. Good luck with your decisions, kudos to you for thinking about how you can combine your passion with your livelihood! --Larry
  19. Gewoon, that sure sounds familiar! While not very efficient in terms of time and materials, the thoughts and things learned along the way will certainly make your next attempts that much better! --Larry
  20. On the one occasion I had a striker helping me, it was in a class & I was having enough trouble concentrating on what I was trying to do that I'm sure I frustrated the striker to the point of wanting to hit me, whether I nodded my head or not! --Larry
  21. I noticed the sale posting as well George, but it got swept away before I could reply. [deleted] The thing that struck me as I looked at the large number of photos of the shop is that things appeared to have been in use relatively recently, as though the owner passed suddenly. The sad note to my mind (that probably strikes a chord with many of us) is that he or she did not have the opportunity to direct the disposition of their treasures. On the other hand I guess I'd rather go with my hammer in my hand, but that's a thought for another day... --Larry
  22. Thanks Jennifer, helpful insight as always. After reading your descriptions I thought to check http://vintagemachinery.org/ and they have a couple of catalog excerpts covering the shears from 1930 and 1953. --Larry
  23. Welcome to Jennifer's shear showroom! Years ago I picked up an Edwards 5A which looks to be the same as what you're calling the alligator...yes Larry, A is for Alligator... A Whitney 3x3x1/4 angle came home with me as well on that trip. Neither has gotten used as the bandsaws are available, but I've held on to both as they're neat. Heavy buggers though! I wouldn't like to move those 10s around very often! I was not aware of the Parrot jaw version, what was the intended purpose of the two styles? --Larry
  24. Naw, just a new twist on the notion of a serrated edge David! Someday I hope that I could do as well, particularly in a demonstration!! But the perfectionist in me certainly understands being bummed about the wavy edge, good that you've got an idea of how to salvage it. --Larry
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