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About orlando cajamarca
(Top Expert on this page)

Expertise
I will answer any question related to jewelry making

Experience
30 years

Education/Credentials
Degree in Metals, GG, JA Certified Master Jeweler

Awards and Honors
Platinum guild International Design Contest, JA Design Contest.

   

You are here:  Experts > Style > Jewelry Making > Jewelry Making

Questions Answered By Expert  orlando cajamarca 
In Category  Jewelry Making

SubjectDate Asked

Type glue to use11/12/2009
  Q: I am crafting glass beaded bowls or other glass items with aluminum wire embellishments. I am ...
  A: There is few glue types that will fit your needs and are the following, LePage's Metal Epoxy, J-B ...
torchs10/30/2009
  Q: I live in one apartment and work at home. I came from another Country and there we don't have so ...
  A: You reminded me of myself in my early years of learning the trade. Well, there is a very safe and ...
Alloying 9ct gold10/30/2009
  Q: I have a 2oz gold ingot in 24ct gold. My question is, what do i need to add to the 24ct gold when ...
  A: Percentages by Weight Alloy Gold Silver Copper Zinc Nickel Palladium 9 Yellow ...
ceramic jewellety10/29/2009
  Q: for the past two years I have been makinig rings, pendants and broaches out of old broken plates by ...
  A: The type of jewelry you are making requires the same method you are using with the cooper foil, ...
Ruby Beads10/25/2009
  Q: I purchased some ruby beads to make some necklaces. They are dull - not shiny. They do not glow or ...
  A: Here is the link for the supplies, use al 4 steps. 4-Step Gemstone Finishing Kit ...
bell caps10/25/2009
  Q: what are bell caps used for and how are they attached?
  A: I don't really understand the question but, I will answer to the jewelry making level. Bell caps ...
white oxide for silver10/24/2009
  Q: I have recently seen silver hydrangea flowers that were patinaed white. The artist claimed to have ...
  A: No, it is not, I was giving you the simplest way but if you want to get a little dipper in the works ...
Aluminium10/24/2009
  Q: I cant afford to work with silver and in college we sometimes used aluminium sheet for ...
  A: The thing about aluminum is that it's highly reactive with oxygen and there is people who reacts to ...
SILVER MELTING10/23/2009
  Q: I HAVE A PRESSURE INDUCTION CASTING MACHINE, I HAVE BEEN MELTING SILVER ON A GRAPHITE CRUCIBLE WHICH ...
  A: This is one nice casting machine in the market. I got a better idea about your problem, there is no ...
casting silver10/22/2009
  Q: I am very mechanical and diversified in my interests so...with creating a detailed silver ...
  A: The question is a little incomplete because I need to know few things before I finish my answer, 1- ...
SILVER MELTING10/22/2009
  Q: I HAVE A PRESSURE INDUCTION CASTING MACHINE, I HAVE BEEN MELTING SILVER ON A GRAPHITE CRUCIBLE WHICH ...
  A: I assume that you are getting porosity and brittleness in your castings. First I would clean the ...
making a mold from an old pendant10/21/2009
  Q: I would like to duplicate numerous pendants from an old pendant I have. What is the best way to ...
  A: I assume you have all the equipment needed to make molds and you know how to cut molds as well. If ...
melting temps10/19/2009
  Q: what are the melting temps of gold and silver
  A: Your question has been made in a general term, there is a variation of melting points depending on ...
Question regarding ring10/19/2009
  Q: I'm looking at purchasing a sterling silver square ring with an Amber centre stone surrounded by ...
  A: The ring looks real on the picture but the details are a little hard to see, however I made some ...
white oxide for silver10/18/2009
  Q: I have recently seen silver hydrangea flowers that were patinaed white. The artist claimed to have ...
  A: After I received your question I have tried different ways to do this and the closest way to achieve ...
How to prevent gold becoming brittle from repeated melting10/18/2009
  Q: Please can you try to help me. A few times, we have had a problem with our gold metal at work. ...
  A: There is number of reasons for this to happen but, based on your message the mistakes are done by ...
blackening metals10/13/2009
  Q: Recently returned from Kashgar(China) where bought metal jewelry, probably not silver. some appears ...
  A: The most common agents used to blacken metal are liver of sulfur and selenium toner a chemical ...
returns of custom made jewelry10/11/2009
  Q: I had a piece custom made, but the piece is nothing like the design in the photo print I gave the ...
  A: It is very sad to know that there is "jewelers" who are in the retail more than in the actual ...
Melting down gold jewelery10/11/2009
  Q: When melting down gold jewelery to make into a new piece can you mix the different ct golds ...
  A: Yes and no, if you are making a piece that must have a specific karat you should not mix all kind of ...
advice10/5/2009
  Q: i have just started to design jewelery and want to buy a dremel tool which one to you recomend? i ...
  A: Hola Katerina, Me imagino hablas espaņol por eso te contesto de esta manera. Un dremmel no te va a ...
Removing heat scaling after soldering9/29/2009
  Q: I soldered a bar to the base of a sterling silver wire bracelet. The bar was laying flat and the ...
  A: Well, now it is a different story. If that is the case, at this point the next step will be polish ...
Removing heat scaling after soldering9/27/2009
  Q: I soldered a bar to the base of a sterling silver wire bracelet. The bar was laying flat and the ...
  A: No need to panic at all, There is few ways to get rid of it, first I will heat again the bracelet ...
Question regarding ring9/17/2009
  Q: I'm looking at purchasing a sterling silver square ring with an Amber centre stone surrounded by ...
  A: 925 is a common marking for silver. MD is not a sign of the age of the ring but the manufacturers ...
Making money clips, and rings9/12/2009
  Q: In 1980 we made money clips, i believe it was on a stainless steel, or a thin sheet of metal 1/8 th ...
  A: Potassium fluoride is the flux to soldering stainless steel with brass or silver solder Ordinary ...
heirloom ring question9/1/2009
  Q: I recently inherited my grandmothers wedding ring and have been trying to find more information ...
  A: Usually the jewelers or jewelry designers/manufacturers will put their name/ initials/ logo next to ...
How to get a satin finish8/4/2009
  Q: Could you advise me how to get a nice and durable satin finish on sterling silver? After polishing I ...
  A: Well, you have done everything in the right way. The problem is not in the finish but in the silver. ...
melting some gold coated roses8/3/2009
  Q: First let me say I know nothing about smelting,or jewelry making, I don't know the terminology. So, ...
  A: Well, I have a better idea of what you have in your hands and what you should do, Using the torch ...
melting some gold coated roses8/2/2009
  Q: First let me say I know nothing about smelting,or jewelry making, I don't know the terminology. So, ...
  A: Based on the questions, you know a lot about this and the answer is simple. IT IS NOT WORTH FOR YOU ...
soldering7/27/2009
  Q: can you tell me how to make the firecoat and how to use it i was told you have to dip it in then ...
  A: It is very simple, 1- In a small glass jar you will put 200ml. of denatured alcohol and 3 spoons of ...
Adding enamel to a gold ring7/27/2009
  Q: Would it be possible to apply enamel to this ring? I would like it to have a dark blue background. ...
  A: I would consider doing the heated one that would make the enamel shine like glass, I would also take ...
desoldering rhinestone chain jewelry7/25/2009
  Q: Cajamarca, I have an old rhinestone chain (4mm settings) belt that has some darkened and ruined ...
  A: The first step should be to test the kind of metal you are going to work with. To remove the solder ...
Adding enamel to a gold ring7/24/2009
  Q: Would it be possible to apply enamel to this ring? I would like it to have a dark blue background. ...
  A: It is a nice ring, yes you can add enamel to it at any time. If you are not a jeweler then you can ...
setting gemstones7/18/2009
  Q: I have a matched pair of garnets. they are very shallowly cut and I would like to set them in a ...
  A: 1. Here is one way to include a non-firable gemstone in a metal clay project. Start with bezel wire ...
white silver finish7/17/2009
  Q: How long does the soft white finish you get after pickling silver last? I am making a ring made of ...
  A: It will not last that long at all, if you have a silicon wheel you can use it to give the metal the ...
blackened silver7/16/2009
  Q: I am using a silver chain that is very small (.9mm) and have used Jax blackener to make it as dark ...
  A: Jax blackener is mostly used to darken aluminum, it was made for that purpose. Silver Black, which ...
mixing gold7/14/2009
  Q: I have a little gold deferent grades can you mix these also some white some yellow gold just want to ...
  A: Yes you can, I would not do it if it was a custom job but, if you just want to mix it and use it ...
Silversmith course7/7/2009
  Q: I am moving to Orlando in the next few weeks and I would love to complete a course in ...
  A: Congratulations on your decision to move from UK to USA. The 3 Schools that I know in FL. Are very ...
sterling silver forks want to make bracelets7/2/2009
  Q: I have some sterling silver forks and would like to know how to melt them down or how I can make ...
  A: I assume you want to make a solid plate like bracelet, if so then you need the following, To start ...
silver leaf6/18/2009
  Q: I have learn how to use silver clay how can I use it to make a silver leaf with all the little ...
  A: The picture you sent is of a filigree work not silver clay work but is possible to make it out of ...
dental gold for rings6/13/2009
  Q: I am wanting to take a blend of 14 kt jewelery, yellow dental gold crowns, and a bit of 10 kt gold, ...
  A: it is not necessary to use a new crucible, dental gold has the same alloy as regular 14k yellow ...
makers mark6/6/2009
  Q: who is the manufacturer of a 14k gold ring i own that has NG stamped inside the band i would like ...
  A: At one time in the USA was a Manufacturing Company from Nigeria that was selling their jewelry to ...
butane torches, soldering irons6/5/2009
  Q: I would like a professionals opinion on what type of equipment I should purchase. I am seeking to ...
  A: Not very sure about the question but I will answer to my best, 1- If melting over a kilo of silver I ...
My necklace/ ring6/5/2009
  Q: My boyfriend got me a herrinbone 36' or 24' gold necklace for X-mas. I thought it was real but as I ...
  A: To "dip" something in gold solution requires knowledge, practice and equipment. If the jewelry was ...
chinese stirling silver5/30/2009
  Q: is this silver as good as the english silver or does this one turn you green
  A: This is a good question, Chinese silver is as good as silver from any Country but the process is ...
Cadena Bizantina5/10/2009
  Q: De antes de mano le voy a estar agradedcidi si me puede decir como es que se hace el martillado en ...
  A: Estimado Juan, Felicitaciones! ante todo me imagino que usted es joyero de profesion o esta ...
Mending a brooch that has lost a small circle of mother of pearl.5/6/2009
  Q: How can I make a perfect circle of mother of pearl, to match the other 3 that are intact ,without ...
  A: Well, I wish I had a picture of the item and a more elaborated question but based on what you ask ...
dipping jewellery5/2/2009
  Q: what can use to coat a silver ring which is badly tarnished, are there any silver dips etc; silver ...
  A: First of all the question is very simple but yet not very clear, if you are a jeweler then do this, ...
Goldsmith charges ( labour charges )4/20/2009
  Q: Desr sir, I would like where is there any standard way of calculating labour charges of goldsmith( ...
  A: Well my dear friend calculating labor charges depends on the piece you are working, metal and stones ...

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