Can You Cast A Bezel Cup?
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- Опубликовано: 17 окт 2024
- Recommended Tools & Supplies:
Binocular Headband Visor;
File-A-Wax Assortment;
Acrylic Sheet;
Heavy Duty Household Needles;
Wooden Dowels;
Blue Inlay Wax For Casting;
Rectangular Tin Boxes With Lids;
Talcum Powder;
Wax Carving File;
Emery Boards;
Exacto Knife;
Dividers (3 inch);
Wax Blades;
Saw Frame & Blades;
Orange Oil Extract;
Alcohol Torch;
22 Gauge Pink Sheet Wax;
Ruler; and,
Baking Parchment Paper Sheets
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Jewelry that is mass produced often relies on the use of bezels that are cast as a part of a piece. Often, stones are anchored in these bezels with glue in order to speed up the manufacturing process. But, depending on the metal used for the casting, these same bezels can sometimes be manipulated with stone setting tools to hold a gemstone.
In this video, Professor John Ahr of the Online Jewelry Academy demonstrates how to make a wax bezel for a cabochon stone using 22 gauge pink sheet wax. The bezel is closed and attached to a 4mm thick file-a-wax backing using blue inlay wax.
Viewers will be surprised by the simple tools that Prof. Ahr uses to develop and refine the project. No doubt you probably already own many of the tools used in this video.
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Thankyou for being so detailed in your teaching. Most on RUclips tend to leave bits out!
Thanks for the compliment Liz. By the way, since making this video I’ve determined that this approach can be hit or miss. When in doubt, solder the bezel in place. 😀
Your classes are terrific. Thank you so much.
@@embemw glad you’re enjoying the videos. Thanks for watching! 😀
This brought me back to my days in dental school (over 40 years ago). We were taught to make gold crowns the same way using many of the exact same tools and materials including the nylon stocking. Thanks, Prof John. You are a better teacher than most of my professors in dental school were.
Hi Richard, Thanks for the very nice compliment. I've had a number of dental students from USC in my classes in the past. They really taught me a lot.
Thanks for your support! : )
Absolutely brilliant! Many thanks.
You're very welcome. Thanks for watching! 😀
Unfortunately no, I probably cannot cast a bezel cup like so. But if you keep teaching like this, soon comes the time when I can.
Much love, "OnlineJewelryAcademy", thank you for sharing-
Thanks for following the OJA. I hope our videos are helping you to achieve your creative goals.
Thanks for your support! : )
Apparently ,NEITHER CAN HE (TAKE IT TO YOUR "CASTER).AKA .THE REAL JEWLERY MAKER,AKA GOLDSMITH. THANKS FOR THE WAX TUTORIAL THOUGH.
Lovely as ever Prof. John 😼
Glad you enjoyed the video.
Thanks for your support! : )
Very cool! I never knew anything about the actual process of lost wax casting, so this series has been very informative.
If you are only going to make one or two pieces, is there really any major advantage to casting it as opposed to just making it out of your metal to start with? Assuming one has the tools, of course.
And since the wax is burned off in the casting process, how *do* they make multiples? They have to make some sort of mold from the wax first, I assume? That would seem easy enough with something simple like this bezel cup, but not so much so with something more complex and delicate like that fabulous spiky pendant you did.
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Great Tutorial! Will thinner bezel sheet (24 gauge, for example) work well for the casting process?
A thinner bezel might work if you use a vacuum casting method. But, I must warn you that cast bezels don’t bend easily. And, there is always a chance that porosity can ruin the bezel if not the whole piece. Good luck with your creative pursuits. Thanks for watching! 😀
Do you have to worry about shrinkage if you are using this to make a model for sand casting? Or is it only in investment casting? Also how much do you have to make extra for shrinkage if you are making for a specific stone? I’m new to casting and this is something I worry about. Thanks for the videos, they are so helpful and the only ones I’ve found that seem to “connect the dots” so to speak.
Hi Kay,
I’m glad you’re enjoying the videos. Thanks for watching!
Generally speaking, shrinkage in investment casting is about 2%. It’s great that you’re using wax models to make sand castings. But this technique is a little tricky. I recommend that you fabricate your bezel cup and solder it to your casting. 😀
@@OnlineJewelryAcademy thanks so much for responding!! Sorry I’m not quite sure what you mean? Would you mind explaining that a bit more? Is it not possible to use wax models for sand casting or do I need to it a different way? Thanks so much!
@@Tinybadger Yes, you can use wax models in conjunction with Delft Clay casting. The wax models are removed from the clay to create a void prior to casting. The OJA has a video on Delft Clay casting.
Good video, Prof. Thanks!
Hi Leigh, I'm glad that you enjoyed the video.
Thanks for your support! : )
Hi there, thanks for the great video. Could you please explain more in-depth the last polishing step with orange oil, I don´t seem to be able to find such a product or even the wax cleaner you mentioned. Thank you!
The final polishing step helps to ensure that you don’t end up with a casting that has deep scratches on it. If you don’t have access to the products that I mentioned, try substituting them with diluted dish detergent. Just be sure to thoroughly rinse your wax before you invest it. You don’t want to provoke unnecessary bubbles in the casting process. 😀
@@OnlineJewelryAcademy Oh thanks for the response, about the orange oil, is it an essential oil, or is it oil that´s just called orange oil? Is it a wood polish? haha I´m doing a little research, thanks for the tip, I´ll try the dish detergent for my next piece! And for the content, great videos!!
@@mafe9551 Yes, it is a wood polish or cleaner. It works because it has a mild solvent effect on the wax. 😀
What do you use as a cutting board for your pink sheet wax?
Generally, I use a piece of plexiglass. But, if I heat my cutting tool, I’ll switch to a metal surface. 🙂
Thanks. Do you think a plexiglass piece is better for wax cutting than one of those ruled cutting mats. I've seen those used as well.@@OnlineJewelryAcademy
Hi from Argentina! how you mesure the base that goes under the stone? I mean, how tall or thin it has to be so when you cast is not to tall or thin. Thank you so much! Paola from Buena Plata
Hi Paola, Commercially produced bezel wire is 28 gauge thick or 0.32mm. Here's a link to a chart to help you with gauge thickness: www.firemountaingems.com/resources/encyclobeadia/charts/6404
The bezel can be thicker. But, if you make it out of sterling silver it will be harder to bend over the stone. The height of the bezel needs to be slightly taller than the height at which the curved top of the stone starts to curve toward the apex of the stone. If you're still confused. I recommend that you consult with your caster and a professional stone setter. Good luck! 🍀
OnlineJewelryAcademy thank you soooo much fot your quick answer! right now working on it! :)
Why did you decide to use 22g wax sheet to make bezel instead of carving it from blue wax?
I used the 22 ga sheet wax to ensure that I had an even thickness to the oval bezel. You could create a round bezel from blue wax on a lathe.
Thanks for your support! : )
Thanks for the video. Bit hard to judge the shrinkage of the bezel!!! Please make more wax carving videos 😀
The most accurate way to predict the shrinkage of a model is to develop the model in a CAD program. Otherwise you just have to leave the bezel a tine bit loose. More wax videos are coming.
Thanks for your support! : )
thanks for replying. CAD too high tech for me ☺️ I guess it's trial & error. Just a bit expensive to cast if it doesn't fit. I'll try it though. Cheers!
I don't have blue inlay or perfect purple. Is there something else I could use?
You might be able to use some of the wax that you used to make the bezel. The blue inlay and perfect purple are recommended because they will flow easier into the cracks. Good luck!
Thanks for your support! : )
Where has your Patreon gone? I tried to support you but page no longer there.
Thank you for your support. We closed our Patreon account some time ago because we were no longer producing new content. If you want to help support the OJA, simply watch (or let play) the commercials attached to our videos. Thanks! 😀
Do you have any suggestions on where we can get our pieces cast?
Hi Kieran, I'm not sure where you're located. But, I'm sure you can look online to find a caster in your area. Otherwise, check out Monte Christo Corp in Los Angeles, Their contact information is at the end of this video: ruclips.net/video/QjMtxh4iTmI/видео.html Good luck with your creative pursuits.
Thanks for your support! : )
Very good video did know about the orange oil, my partner does not wear knee high's so I will have to go and cut the legs off
her pantyhose
LOL! Or, you could just visit the dollar store and buy a pair. The knee high hose are great because they have a variety of surface textures that allow you to really polish a piece. The orange oil will soften the wax a bit. So, don't be too aggressive with your rubbing. Glad you enjoyed the video.
Thanks for your support! : )
Where do I buy orange oil?
Hi Cindy, You can purchase orange oil online. Here's a link to an Amazon page: www.amazon.com/s/?ie=UTF8&keywords=orange+oil&tag=googhydr-20&index=aps&hvadid=241929609800&hvpos=1t2&hvnetw=g&hvrand=5606079920564445273&hvpone=&hvptwo=&hvqmt=e&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9031189&hvtargid=kwd-12370800&ref=pd_sl_9bd6gh4tth_e
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THATS GREAT .... AWESOME VIDEO....! thanks
Glad you enjoyed the video kassi man.
Thanks for your support! : )