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RDeNatale New user 74 Posts |
I've made my first attempt at making one of these following Daniel Garcia's directions in the "Daniel Garcia Project 2" Chi effect.
Not too successfully I just admit. The punch wouldn't penetrate the quarter, and the coin got pretty bent. I then drilled a small hole and used a jeweler's saw to pre-cut the breaks. This worked a bit better, but still not usable. I'm thinking I might need to anneal the coin first, but I'm not sure exactly how. I've seen quite a bit on annealing silver coins to make rings, but nothing on silver-copper sandwich coins. Has anyone had any experience in doing this. I like the 'jagged' style karate quarter, and love the idea of making them cheap enough to give away as a memento, but I'd like the labor part of the cost to as low as possible. The closer I can get the cost to $0.25 rather than the $10 and up for commercial gaffed quarters, the more feasible the idea becomes. |
Poof-Daddy Inner circle Considering Stopping At Exactly 5313 Posts |
I have seen people on YouTube anneal a clad coin to make coin rings the exact same way they do a silver. Give it a shot. It will only cost you a quarter to find out
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Dollarbill Inner circle Colorado 1005 Posts |
What if you bought a step drill bit and tapped it over that to create the look. Just a guess.
Or you use a cone anvil if you can find one small enough. Maybe Harbour Freight. |
cheesewrestler Inner circle Chicago 1157 Posts |
Just fix the coin firmly in a vise (padded so as not to scratch the coin) and then yell "Ki-yah!" and poke your finger right through it.
That's what I do. |
Bill Hegbli Eternal Order Fort Wayne, Indiana 22797 Posts |
Those coins are made with a punch press, you won't be able to get a good or perfect coin with hand tools. A sledge hammer might work, but you need a flat surface with a hole drilled large then the hole you are trying to make to give it some give so it will curve in before bursting through.
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Scott Horn Elite user Dallas, TX 417 Posts |
Cant help you if you want the "flared" center; but if you want a clean hole, its pretty easy. Ive done with with clad and solid silver coins.
Drill a hole in the center of the coin (smaller than your finger size). Then get some course sandpaper for metal, roll it into a tube, and start sanding. This way, you can shape the hole to your finger... i.e. oval and so it sits on your finger where you want it. Click here to view attached image. |
Chuck Finley Regular user 139 Posts |
Quote:
On Jan 26, 2016, RDeNatale wrote: Could you post a picture of what you are trying to make the final product look like? I know what a karate coin looks like but it seems you are going for a specific look I might be able to reverse engineer something that will work for you. At the very least I can try I do have a good metal working background. |
Mb217 Inner circle 9520 Posts |
I made my own quite a long time back now taking a step-drill-bit to a half dollar locked on edge in a vice grip. Still got it and it's still working/wearing pretty fine for whenever I do my Crimp Karate Koin, or play with EJ's Tai Chi Penetration.
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jay leslie V.I.P. Southern California 9498 Posts |
You need a punch press and a die that’s the right shape
Jay Leslie
www.TheHouseOfEnchantment.com |
king_amongthepigs New user 59 Posts |
Me and my friends made a few "Kukarate" clad half dollars last year. I've found the easiest way is to drill a hole, making 3 cuts and apply heavy pressure to the middle of the coin whilst it's being gripped all around the hole. For normal Karate coins (flat without the flaps), a sanding drill is the way to go. Probably won't be able to get a perfect circle but it works just fine.
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elainevblaine Regular user 140 Posts |
You need an annular cutter. Or a gun.
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