Work-in-progress

We’re on the polishing stage with the ring. A lot of filing to even out the imperfections from the cast, and also I discovered it didn’t really fit Miranda’s finger properly so I filled out the inside a bit more. Then sandpaper, to remove the marks from the files. Then…the jeweler’s rouge!

I started here.

And ended here.

Next is to confirm that Russ thinks it’s polished enough (he’s more patient than I am with this sort of thing…), and then we figure out how to put 4 white sapphires into it!

This is the really damn cool part of the process. I enjoy the carving and designing, but in this part we get to play with metal that is so hot it’s gone liquid!

We started on Saturday night with a mini-session of mixing the investment. I still don’t know what “investment” means in this context, but I can tell you that it starts as a white powder that is apparently a mix of some fibrous material, and silica. You mix it with a specified amount of water and stir gently. It becomes a magic-mud consistency liquid, and you have to try to keep the air bubbles out of it lest you get air bubbles in your final cast (ie, a bubble on your ring). We gave it a little tapping to help release the bubbles.

The next day Russ started early at 9am by setting the temperature on his kiln to 300 degrees and waiting. I arrived around 11am, just in time to set the temperature to 700 degrees. Then we got started playing with yet another hobby (which I’ll write about shortly).

4 hours later, we set the temperature to 1350 degrees. Another 2 hours, 1100 degrees. Then we waited 1 more hour before getting to the good part.

The kiln and temperature controller.

Taking our very hot things out of the kiln.

It’s very hot in there.

Then we had a little problem. It turns out that we were out of acetylene, which is half of the required gas to create an acetylene torch, which is required to get silver hot enough to melt! Apparently we can’t turn the kiln off – the investment goes bad. We also can’t leave it for more than 6 hours, otherwise it goes bad. At this point, we were very close to losing what Russ estimated to be 16 hours of work!

We started calling people desperately. Russ asked me to point his propane torch at the silver, and then he ran off. We found out later that he’d driven to Home Depot to buy a mini acetylene torch which he hadn’t been sure he would be able to get, but about 20 minutes later the silver was melted from the propane (we also weren’t sure it was hot enough, hard to tell!) and he had plan B, a mini-torch.

We used the same swinging arm thing as the last time, melting the silver, winding the arm up, grabbing the investment with tongs, sticking it in front of the crucible and then letting go, allowing the sweet sweet silver to be thrown into the investment to form a ring.

The silver after we’d taken the propane torch away. It’s still a lot molten!

We did two rings this time, because Russ had his press-molded version and I had my carved version and we wanted to have both. Here they are!

Miranda was hanging around for this last, panicky, bit. She got to swish around in the bucket for a ring!

Next up, a lot of polishing! And gem setting.

After draft #3 failed to produce geometric perfection, I went back to the drawing board. Literally.

I took a photo of the ring on Miranda’s finger and cut away everything but the ring, and then drew every brainstorm idea I could think of that was within the realm of what we were trying to do. #1 was my favourite — maintaining the essence of what our original design was, but ending up with 3 rings instead of 2. #6 is what Miranda chose. Back to carving!

A day later I had this rough draft. The plan was to show it to Miranda to ensure it was what she wanted, as we go.

Another day, and I had this “getting closer” draft.

Seen here in the casting frame. We took a “save point” at this point, as it was the closest I’d got to success so far!

While I was carving up a storm and praying, Russ was working on another idea. Since carving the relief of the ring into the wax was proving difficult/imperfect, he’d go the other way. He took Scuply and formed it around the existing ring. Then he cast that so he could carve away the unnecessary parts! It was an excellent idea, except that the casting material was miserable to carve, so while the ring impression was perfect, everything else was messy and frayed.

In the end, I decided to go with the wax I’d been carving, as I’d gotten it close enough to perfection to be what I wanted to run with. I took it home again to show m’lady, who approved, and now very soon we’ll be dealing with silver things again! YAY HOT THINGS! 😀

Still working on this ring thing, as best I can. Last time I’d done 2 different drafts, and the last one had been close, but I had carved to close to where the gems would sit so we couldn’t set them, and I didn’t like how the layout looked. I went back at it, with renewed vigor and knowledge of how to make it work.

And at the end, I’m not sure the design we have will work at all.

I don’t know if you can see the problem here, but we’ll see if I can explain it. The design has a gem on each side, while maintaining the existing ring. So the new ring has to either go over the existing, or under. Over is too bulky. Inside is the way we’ve been going. With inside, we’d need to have a little jutty bit that goes on the inside of the ring and sticks up to put a gem on the other side.

This adds material to the inner dimension of the existing ring. Which means we need to take material out of the existing ring in order to maintain the existing inner dimension. And the existing ring is pretty small to begin with!

Here are some photos  I took after I’d carved out a pretty good hole for the existing ring – my best yet, after 3 drafts!

So now we have to figure out a new design, possibly with new gems – we’ll see how it goes!

After my last pile of ring photos, I took a break. But I have a wedding upcoming and now it’s time to get a move on with making the wedding ring!

The plan is to make another ring that “slots” into the existing one. We’re working from a resin cast of the existing ring to build around it. This first photo is of me with a very rough carve, and it identifies a problem with physics. ie, the holes will never line up with the geometry we have. One day of learning, toss that wax.

The next day of carving I spent an afternoon on Sunday and ended up with physics being appeased, but my sense of aesthetics not being so happy. The result looked a little bit like an alien frog thing. I brought it home to test against the actual ring and was surprised when I got out of the washroom that Miranda had slotted it in and put it on! Pleasantly surprised – I hadn’t expected it to fit.

I like my alien frog thing better after comparing it to the actual ring, but it still won’t work as the gem sections are to thin to be able set the gems properly. Back to carving!