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I Forge Iron


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About CGun

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    Advanced Member

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  • Location
    Saratoga Springs, NY
  • Interests
    Investment casting, hunting, fishing, camping, trips to Europe, 18th century cooking. Old world skills.

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  1. I think girls have a innate ability to shoot because "man ego" isn't part of the equation. My wife can shoot my my old smith 39-2 9mm I bought when I was an armored car guard, and she could have qualified with the best shots of the guys I worked with after about 40 rounds downrange. Guys spend a lot of time trying to show off how manly they are with their guns... women just see them as a tool like a wrench and approach them like that.... Anyway, yes I think an ancient soldier would be much more proficient with his weapon than a modern soldier is with an M4 because his main jobs were to master it and follow orders... and he did it for 10-20 years, week in, week out. Not 1 week in boot camp with a bi-annual 1hour requal.
  2. I know that you can actually throw a throwing dart from a sling as well. They tend to carry if they are slim and made of tungsten. Still, the official world record was made with an oblate stone at a distance of around 450 yards. This was done by a hobbyist modern slinger... that probably means in ancient times, someone who was practiced could likely engage archers before they could return fire. Given that the established range for an english longbowmen, with their superior bows, 1,500 years later, was effectively 250-300 yards, it seems probable. The sling stone was also pretty much invisible due to its size and speed so it tended to hit without warning before shields could be raised. The atlatl throwers I've seen videos of are truly impressive. I think the challenge of the atlatl is duplicating the flex in the dart everytime so that the throw hits home. Similar to the archers paradox. My guess is that where you think the dart will go instinctively and where it actually goes are two different things and can only be learned by many many throws.
  3. The water is distilled and has about 5% anti-freeze mixed with it (ethylene glycol) making it non-conductive, or at least tremendously resistive. Otherwise, the current could travel through the waterlines and short back off the case through the aluminum radiator which is hard fastened to the case and thus the ground. Also I didn't try to mop anything up while touching both the cathode and anode lines... I shut it down first... I just let it run while coolant was dripping, then shut it off and mopped stuff up. I think I have plugged most of the leaks at this point. I am not in the habit of playing with wet electrical connections. That just seems like I would be begging for a Darwin award. Thank you for your concern though... I have a young child and I cannot imagine leaving her without her father, so I am overly cautious about things that could be dangerous... not so much when I was young and it is a miracle I still have all my fingers from all the "fireworks" I had made by raiding my dad's reloading supplies... I'm a little wiser now... I hope.
  4. So I couldn't wait so I set up the crucible with its water cooling system and took a crack at running it. Bottom view under crucible housing where the water cooling comes in for the anode: View of the top: This is temporary to find any issues before I ratchet everything down. And it works! This was just on the preheat cycle so I didnt let it get too hot. Had a few water coolant leaks but other than that it works great! Now to test how far down the anode will melt....
  5. It's really shocking how much extra velocity you get by adding just 18" to your throwing lever. I used to play with slings when I was younger and had a better throwing arm. Never got around to building an atlatl... but I used to be able to hurl stones 180-200 yards down my dads shooting range with abysmal accuracy. Always had better luck there with a rifle, but the sling was much more fun. Anyway... I hit his 25 yard backer once which was made with 5/8" CDX plywood. To my amazement that 2 oz. rock went right through it and buried itself in the mud behind. I remember throwing 1" pipe couplings using that greek style and as the sling unfurls on the tangent of the swing, it imparts a high speed spin to the projectile, which on a random shaped rock gives a "bzzzzzzzzt" ricochet sound follwing the whip snap from the cord of the sling, but on a balanced pipe fitting, you could see through the hole in the middle all the way down range. Gyroscopic stabilization 2000 years before rifling was invented. now you got me thinking about an atlatl... I might have to build one. Unfortunately the NYS Dept. of environmental conservation won't let me hunt with one, but could be a lot of fun nonetheless.
  6. Pretty much that is all a sling is. A way to increase velocity based on the length of the lever... it is just flexible, unlike an Atlatl throwing stick. the nice thing was that a sling was easy to make and carry and ammunition was pretty much everywhere. I believe it was Cretan slingers were not allowed into the army until they could hit a loaf of bread at 50 paces repeatedly. Sounds like the experts are not so much.
  7. Unfortunately, A lot of modern documentary's "experts" are just as ignorant... probably because they just search Wikipedia for their information. I remember seeing a test as to whether a sling stone was a dangerous weapon... The "experts" considered it to be inferior to almost everything they used, probably with the exception of a dry-rotted pokey-stick... Then when you watch the "experts" try to use a sling, you understand why... Wildly whipping the thing around over their head and clumsily letting the stone fall free like a drunk squirrel dropping a walnut. Yup... Ancients clung stubbornly to a vastly inferior missile weapon even when bows were easier to learn to use, because it didn't work. for the record, the most effective was considered the "greek" way to use a sling is in this video, ignore this guys capris and short shirt: A good slinger could hit 200+mph with a lead 2 oz. lead sling bullet and a hit even in the arm or leg could break bone.... Good thing we have "experts" to tell us this just wasn't possible. Just like the experts who claim aliens built the pyramids because they can't think outside of "I need hydraulics to move anything heavier than 500lbs." But the experts say the ancients were dumb... Its amazing ancient man could get out of bed in the morning without hurting himself...
  8. oh I thought you meant where did the phraseology come from... like why do the shot sizes go from B to BB to BBB to T and then to TT and F? There probably is some unified British shot size standard developed by Westley Richards in 1852 that standardized them.... I don't know myself though.
  9. Because they are bigger than BAs but smaller than BCs? or in other words... bigger than a Bada** but smaller than British Columbia.
  10. See? So the thesis idea above would totally work... no one has probably ever done research on the electromagnetic properties of a mass of .177 caliber copper coated steel bbs designed for bb guns! Whoever writes that thesis had better have a hyperlink to this page in their appendix.
  11. That seems like a recipe for Disaster. Handle holding AC welding clamps in each hand (most of those welders will put out 80+V OCV, which is enough to kill you if your hands are a little sweaty and you happen to be holding the contacts in both hands so the current can pass through your heart). I mean... I can just put a bunch of black powder in a soda bottle with a fuse and make it go bang... but that doesn't make me Lawrence Livermore Laboratories.The steps seem to be, and mind you, I started this way so I guess I can't make too much fun without sounding dumb myself but... well... here it goes: 1. Get a welding power supply... ( doesn't really matter, Microwave transformers will obviously do) 2. Touch the stinger and ground to your tounge... if you get shocked, you know it is working (this is the quality control, you don't want to build the whole thing to find out it doesn't work. ). 3. Control the current of your homemade transformer using a DEATHPOOL (Design Encompassing A Total Hack-job Proliferation Of Online Lore) conductive water resistor (for the record... no welding machine EVER has controlled current directly using a variable resistor because it is a very dumb way to go about it.... making one you could inadvertently stick your hand into, is Darwin award material). BTW, PWMs are cheap and infinitely better in this regard. 4. Spark the ends to get the uncontrollable arc to light. 5. Hope that your metal melts before your 2,300F Insulating Refractory brick under the heat of the 13,000F arc. 6. Make a video about it and your smug, yet ignorant, confidence that nothing could ever go wrong with having a puddle of molten metal in a container not designed for it, being heated by a DIY electrical device with no fail-safes and propose publicly in your video that for a minimal investment you too could make this deathtrap!
  12. about $40 a month. I would need to sell quite a few of them I guess if I wanted to do that....
  13. So I was talking to a friend of mine yesterday and he suggest I make one of these to sell once I get it working and reliable for multiple melts of steel. Do you guys think something like this would actually be sellable? Is there enough interest in ceramic shell casting of steel at home or would people simply buy a larger induction furnace if they were into this? Thoughts? I would probably offer a furnace like this initially for like $1,500 complete, or potentially a kit where I provide the micro-controller and the control system (electrode holder, cooling system, etc. basically the entire upright assembly and crucible in the videos) and the buyer provides the welder/power supply. Thoughts?
  14. I dont know about the faraday effect... there probably hasn't been any research done on the subject "the effect of electromagnetic flow profiles through an entropic mass of copper plated bb gun bbs." There!someone is free to use that as a PhD. Thesis if they would like... I would just like credit for the title.
  15. It's funny you say that. I just found some copperhead bb gun bbs that I am going to use to cover the anode. This will allow good electrical contact and the copper plating on the bbs is no thicker than the copper on TIG rods and shouldn't mess with the chemistry too much. That may be the startup procedure from here on out, add about 30 -40 bbs to the bottom of the crucible, then scrap steel on top, then preheat till the whole mass is glowing orange (1500-1700°F), then run the normal program while incrementally increasing current to the max for this furnace... about 60A.
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