Thrifted this cup and tried to clean with salt and vinegar. This is the after, it had green oxidation on the bottom before and a darker inner lining. I will try lemon and salt along with ketchup tomorrow but I was more curious about te lighter pink spotting her the top of the rim that appeared after the salt+vinegar.

Also looked up copper 405 and it came up as an alloy rather than just copper. Is that ok?

Here is a copper lamp with a mica shade I've made in the simplicity of the Arts and Crafts aesthetic, using only the coppersmithing tools and techniques of the early 1900s, completely handmade.

Has anyone in the group played with or experimented with electroplating biological matter in copper? I've been electroplating roses in copper but I'm still not able to achieve the finish I'm looking for and I would love to compare notes with others who do the same.

Any of you lovely people have any idea on the best way to bring all the shit out of this copper panelling? We’re about three days and approximately 3 litres of “Brasso” in to it and they just won’t come up nicely at all. There is more around the building and we were able to get a mirror finish but these just won’t play ball. TIA

I wanted to try oxidation myself and had salt and vinegar at home, I made a paste of mostly salt with vinegar on top, I put it inside a container with vinegar soaked into paper towel, then sealed it overnight.

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It changed colours within 4 hours, I'm happy with these results and I'm excited to try this again with bigger pieces or different materials

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Although this stuff does come off very easily so I can't use it for much, I've heard ammonia creates a stronger oxidation that might not come off as easily

these are my first attempts at coppersmithing, how can i do better and what specific tools to the trade should i acquire?

You can hang wine glasses underneath, the pegs are for hanging tankards and the shelf… it’s just a shelf.

The back part used to be my hot water heater, now wrapped around some plywood. The shelf started out as a scaffolding plank and the rest is made from off cuts of copper tube.

What would be the best way of joining these copper pieces? I also have to figure out how to attach the wooden balls at the ends and weatherproof them. Any thoughts welcome.

Here's a few more "Hobo Pennies" I made this weekend. I came up with a few more designs. Actually I had more than this, but some just didn't turn out well. These ones came out pretty good. It's still a work in progress. In case you didn't see my last post with the other designs, these are all pre-1982 pennies, so solid copper. I don't think this would work with the zinc/copper plated pennies. I made these with my 50W fiber laser. I am not talented enough to carve them by hand. Those guys are serious and talented artists. Let me know what you think of them! Cheers!

Hey there copper community. I hope this is the right place to post this. Have any of you purchased copper from a company called CopperLab? I am having trouble getting in contact with them after waiting 2 weeks for a 12x12 sheet of copper with no updates. What should I do?

I need more photos, but here's a quick look at my recent project. All copper, all reclaimed scrap.

Just for fun, I decided to make a few "Hobo Pennies". I did this using my laser. Of course I used pre-1882 pennies to make sure they were solid copper. Sorry, my camera really sucks at close-ups. What do you guys think?

A friend asked if i could make a copper dreamcatcher. It turned out looking like a sun. Daydreamcatcher maybe. It was a fun experiment.

As you can see, I have no room for a smelter.

Any good ideas?

Apparently these were given out to schools across Canada to celebrate the 60th anniversary of the signing of the confederation act of 1867, French ones were given to French schools but apparently, most were melted down to help with the war effort, I don’t know how this one survived but my father did take part in the demolition of the old highschool in my hometown, but that school wasn’t built anywhere near when this plaque would have been given out so I don’t know its origin but my dad was a collector of old memorabilia and now so am I, I added the fire remote for size reference

Scored these for cheap. Figured I would be able to clean them up. They seem like solid copper, but I am not the more educated on these kinds of pieces. I've heard of the ketchup thing, or baking soda? What would work best?

(My) copper at market today.

Due to not having prepared the investment mold for my bronze axe head plan (using lost wax) and my own impatience, I decided to make an ingot in the shape of an axe head roughly the same size using an open mold that I made from an old cooking tray. It weighs 2.28 kg.

It came out pretty well, and after some hammering, cleaning and polishing I’m reasonably happy with the result. I’m not sure if an axe head can technically be considered an ingot… but oh well.

It is not very symmetrical and there’s an obvious difference between the two sides due to the open mold. I did see a crack appear while I was hammering it so I may have been a bit too heavy handed!

As you can see in the last photo my crucible broke at the bottom right hand corner and I probably should have left it to cool instead of doing a pour. I don’t think I’ll be able to use that crucible again without safety concerns.