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Making it bigger then cutting in half (Patreon)

Published:
2018-06-08 02:01:46
Imported:
2021-10

Content


Files

gold ball 2

Help me make videos by donating here: https://www.patreon.com/CodysLab Follow me on Facebook: https://www.facebook.com/codydonreeder SubReddit: https://www.reddit.com/r/codyslab/

Comments

Anonymous

Need help cutting it? 😉

Anonymous

I've been dying to see what's inside!

Anonymous

I'm glad you bolted the machine down! you're going to sure feel like you did less work this time. Gold Geode?

Anonymous

You need some halogen shop lights :)

Anonymous
>>12929828

That was a solid cut once it was cantaloupe like. And next you should make a golden calf

Anonymous

But it would have taken you a really solid half hour to drive down here.

Anonymous

Also, would be interested to watch this vid with the FLIR gun as an inset to see how much the gold heats up when stretching it

Devin Forbes

Just like my heart.

Anonymous

Float it in Mercury.

Bob Ogden

That was unexpected, I would have thought that from the noise of it there was multiple onion rings. A pity you couldn't take it to a welding inspection Co and have it X-rayd, though I guess the source would have to be pretty hot to get through it

Anonymous

Uh, uh, I know: that firebrick is one of grant tompson's (tkor) mini arc furnaces :D

Anonymous

Fire brick is from the Grant Thompson graphite stick arc furnace colab

Anonymous

Fascinating to see the inside of the gold ball Cody. But to be honest with you, I preferred it when it was whole and made the chime noises. I have a set of oriental chime balls used to meditate, keep your hands more mobile too... They sound beautiful. 😊

Anonymous

Good workout, good content. It goes to show how much work is put into each video behind the scene even for just a 5 minute video. Is it possible to hook it up to a motor to cut out the manual process? Possible to make it reversible for more sensitive projects?

Michael Aichlmayr

Absolutely the best part was the etching at the end. I dub thee planet Au!

Paul Grodt

I'd love to see a video where you demonstrate an attempt at goldbeating, where you sandwich multiple layers of gold foil between pieces of paper and hammer it into gold leaf; tissue-paper thin.

Silviu T

I can see the headlines: "Eccentric Person Cuts His Ball Open!"

Anonymous

I don't want to eat these ladies (well, I kinda do), but I want to eat the buck that also jumps into my yard and eats my plants. <a href="http://randomer.net/stuff/does-20180603.jpg" rel="nofollow noopener" target="_blank">http://randomer.net/stuff/does-20180603.jpg</a>

Anonymous

Very interesting! Could the vibration be motion of the inner 'nugget' created by localized thermal expansion as it rocks around on the inner surface of the hotter outer ball? Similar to <a href="https://en.wikipedia.org/wiki/Ball_bearing_motor" rel="nofollow noopener" target="_blank">https://en.wikipedia.org/wiki/Ball_bearing_motor</a> but with a different heat source?

Brian Reddeman

Success Cody. Well partial; this video showed up on suggested lists for my wife and son. Interesting.

Anonymous

I am a silver and gold smith. You are annealing your gold WRONG. Ferric metals are annealed by heating and slowly cooling. THAT hardens silver, copper, and gold. To anneal gold, heat it just enough so that the metal glows a dark red in a dark room, then immediately water quench. Follow this by pickling the metal.

Brian Reddeman
>>12974172

I've worked with precious metals as well but he's not making or teaching jewelry making. If that'd be the case then yes corrections are in order. If we're going there then *I* anneal to a brighter red before letting it cool to dark before quenching. For sterling or low carat gold I heat to dark red let cool to dark then quench. Pickle to remove flux and impurities from oxides. firescale etc. The pickle solution I used to use was Tim McCreight's 1:20 solution of nitric acid to water but I've switched to citric acid for working with gold.

Anonymous

He is softening the gold in order to use a rolling mill. What he is doing will actually harden the gold, although it will be softer than work hardened gold. The proper way to soften gold is to heat it to roughly a dark red glow, then rapid cooling in water. The way you harden dead soft gold is to heat it to roughly 700 degrees, then allow it to slowly cool. This will give you a half-hard metal.

Anonymous

Gold and silver metal is sold as three distinct hardness groups, dead soft, half-hard, and spring hard. When gold and silver (and their common alloys) are worked, they get increasingly hard. So metal artists and metal workers know what hardness they want to end up with. Dead soft is too soft for jewelry, but perfect for forge welding and pressure welding. Half-hard is a nice metal Hard but not spring hard. You can still work this metal some what. Most wire is sold as half-hard for instance. With some work the wire becomes spring hard and retains it's shape. Spring hard is just that, what you need if you are making springs. Think catches on bracelets, etc. Spring hard is also brittle. So if you try to bed spring hard gold or silver, I can and will eventually break. Ever do wiring with solid copper wire? Ever notice how once wire is twisted together for an electrical connection, it become harder to straighten and eventually breaks off? Copper shares properties with gold and silver. Copper wire work hardens when you twist it together and will eventually become brittle and break off, just like gold and silver. When I use my rolling mill for copper, silver, and gold I expect to be able to get a 40% reduction in thickness before I have to reanneal the metal back to dead soft. But if I start with half-hard metal, I can only get less than 20% reduction. So why do it wrong? Cody, you are a very smart man and set out to prove what really is happening when you do your experiments. Most people who view your videos have never worked silver or gold. And when you use the wrong technique, you are spreading a lie. I teach silver smithing. I constantly have to teach that silver (and gold and copper) is NOT ferric. And that although water quenching steel makes it hard and brittle, water quenching silver, gold, and copper makes it soft. You anneal, or soften ferric materials by slowly heating and cooling, the same process that hardens silver and gold. I have actually had students quit BECAUSE THEY WERE CONVINCED BY HUSBANDS THAT I WAS WRONG. Those same husbands (or boyfriends, brothers, fathers, etc) worked with metal, i.e., with steel, and were convinced that gold, silver, and copper worked the same as ferric compounds. So what I am saying, if you are going to show, share, and teach a technique, do it right. Or don't do it at all. We don't need "experts" telling us lies. We have a president for doing that.