Showing posts with label tools. Show all posts
Showing posts with label tools. Show all posts

Wednesday, March 11, 2015

What is the smallest size coin ring you have seen?

 Quite frankly the smallest size coin rings you generally see are those sized for a woman or a child. Many of those range from about a 2.5 to a 5 or 6.  It is possible to fabricate a US Quarter down to a 5 or 6, but if you need a size smaller than that, I generally recommend starting with a smaller coin - like a dime or a penny.

The other day I was wondering just how small I might be able to forge a coin ring, and still have it look fairly nice. I started with a US Dime (clad), and although I had to resort to using some special tools I do not generally use - I was able to produce a pretty nice coin ring that is "almost" a Size 0 (zero).  It actually turned out to be a Size 1/4.

You can see it and many of the other coin rings I make, at my website and in my store. Stop by and check out all of my coin rings and leave me a comment if you so desire.





Saturday, October 11, 2014

How To Make Double-Sided Coin Rings - #3

Now that you have a list of the basic tools you will need, I will next elaborate some on how you will use them.

To begin with the fabrication of your coin ring, you will need to remove a small amount of material from the center of your chosen coin. The size of the hole will usually be just large enough so that it will fit over the small end of your tapered steel mandrel.  Most common ring mandrels will require that the hole be around 7/16" to 1/2". If the final ring size you are trying for will be a size 9 or larger, then generally you could make the hole in the coin a bit larger than 1/2". As you gain more experience, you will learn better how much material needs to be removed to achieve a certain ring size.

Some will anneal (soften) the coin before attempting to drill or punch the hole.  Again, it depends a little on the type of material the coin is made out of whether you will need to anneal it first. In most instances, you will not need to anneal the coin first. The hole in the coin can be done in essentially two different ways. You can either punch the hole with a punch and die set, or you can drill the hole using a powered hand drill or a small bench mounted drill press. After drilling or punching the hole, usually the cut edges will require a little deburring. This can be done with a small rat-tail file.

The placement of the hole should ideally be as near as possible to the exact dead center of the coin. There are several methods for locating the center of your coin, and here is one. However, DO NOT obsess over the placement of the hole, if it does not end up exactly in the center. There are at least two ways to fix a hole that is slightly off center.

Here are the two ways to fix the hole in the coin if it is slightly off center.
  1. The first involves using a small rat-tail file to remove metal around the hole on the side where it is the thickest. You can usually do this by eye, or you can use a calipers to measure the distance from the outside edge of the coin to the inside edge of the hole.
  2. The second way is to wait until you start forming the coin down the mandrel. As the coin is being formed you will notice that one side of the ring is thicker than the opposite side. Using a flat file you can remove material from the edge of the hole where it is the thickest, until the width of the sides are more even.
In the next posting I will discuss the first annealing and initial forming of the coin on the mandrel.

Friday, October 10, 2014

How To Make Double-Sided Coin Rings - #2

The entire basic concept of creating a double-sided coin ring revolves around starting with a flat object (a coin), and transforming it to a circular ring shaped object. The transformation will result in the features on one side of the coin to be visible on the outside of the ring band; while the features on the other side of the coin are visible on the inside of the ring.  Refer to the picture here as an example.

There are four basic steps to achieve this transformation from coin to ring. They are listed below:
  • Removing some metal from the center of the coin
  • Softening the metal (annealing)
  • Shaping or forming the metal
  • Finishing and polishing
Each of the four steps above, involve certain basic tools in order to complete the process.  The following list represents the minimum set of tools. It should be noted that although each coin ring craftsman start out with this minimum set of tools; as they gain experience, develop and refine their own techniques and methods, generally they will add other tools to suit their own needs.

The basic set of tools involve the following:
  • A metal punch or drill (or both)
  • Small propane torch
  • Small selection of metal files, ie. rat-tail, flat mill bastard
  • A nylon, leather or plastic hammer
  • A hardened steel tapered mandrel
  • Two or three different grits of sand paper and some steel wool
  • Metal polish and/or metal polishing cloth
In the next part of this instructional material, I will cover how these basic tools are used to create a coin ring.


Saturday, September 13, 2014

What do Coin Rings and the NSA have in common?

NSA are the initials for a government organization known as the National Security Agency.  They are located on the edge of Ft. Geo G. Meade in Maryland. The National Security Agency/Central Security Service (NSA/CSS) is home to America's codemakers and codebreakers. By its very nature, what NSA/CSS does as a key member of the Intelligence Community requires a high degree of confidentiality. The NSA could easily be thought of as the most secret government organization in all the USA.

Probably you are not seeing any obvious links between the NSA and the "art" of crafting coin rings.  Well, when I first got interested in learning how to make a ring from a coin - I had no idea that I was about to enter a world of "black art" and closely guarded secrets, similar at least in nature to the NSA.

Nevertheless, as I probed the Internet to learn what knowledge was available to me; it did not take me long to figure out that only a small handful of coin ring makers actually know the secret  "guarded fabrication techniques" - and NONE of them were divulging any of their special techniques, tools and methods.  Similar I guess to the way craftsmen at craft shows guard and protect their methods and designs. Now, of course if you look on YouTube, you will find a nice selection of videos, wherein it "appears" the authors are explaining how to make a ring from a piece of currency.  In ALL the videos I've seen; they all plainly describe what I would call The Hammer and Mandrel Technique. Further, the unsuspecting novice has not a clue that what they are being taught is really a very primitive and basic method; quite common knowledge throughout the Internet, and has been for several years.

And, if the novice follows this "common" technique (to the letter), their resultant coin rings will come out looking like 95% of the coin rings you see for sale on Etsy, Ebay and other sites on the Internet.  However, the other 5% of the coin rings, made by that handful of coin ring makers, that know the secret "guarded fabrication techniques", look NOTHING like the other 95%.  Their coin rings look beautiful, most have a rounded or domed shape and are perfectly finished. While the other 95% have been made with the "hammer and mandrel technique", and come out having a definite cone or wedge shape (such as the one pictured here), they retain details on the outside but very few on the inside and a finish that is only mediocre at best. Naturally, most of the 95% would like to know the secrets used by the 5%. And therein lies the problem (for the 95%) - the 5% ain't talking; kind of like the folks that work for the NSA.

Now for most of the 95%, they still turn out their "kind" of coin rings. They sell a few now and again, but they also end up giving them away. Then there are a few of us, new to the craft, that are determined to learn the secret techniques (and tools), either from someone who leaks them to us, or merely by our own trials and errors. You see, to a few of us determined individuals, finding out that "hidden information" is keeping us from turning out a more admirable product is like pouring gasoline on a fire. It just makes us all that much more determined and resolute in our quest for "the holy grail" - so to speak. And, no matter which way we learn the "secrets"; it is hard-fought for information, hence we become part of the 5%, with our lips sealed, and the saga continues. 

It is interesting really to see the lengths that some will go to in order to keep their secrets from becoming known. I'm pretty sure I could never stoop this low but here is just one example that I know of, and I'm sure there are others. One of the "senior" members of that 5% group actually puts out instructional videos (YouTube) and other information on his blog. When a novice finds this information, and views the videos, they truly believe what they are being told. They follow the instructions to the letter, because the coin rings this fellow sells are beautiful. Yet, when they follow the instructions and the videos, they always end up with a sub-standard result; kind of like the one pictured above. Do you know why they can never get the "beautiful" result?  It is quite simple really; this particular maker holds back his secret techniques, tools and methods. All he really gives out is the same old Hammer and Mandrel Technique. That way, no matter how closely the novice follows his instructions - they can NEVER produce anything but a sub-standard coin ring.  Thus, that senior member of the 5% has protected his secret for all time. That is kind of an extreme case of protecting the secret techniques and tools.  But, I suppose it is cheaper than applying for a US Patent.

Some of the others belonging to the 5% merely get on discussion boards, or post video instructions where they pretend to give out some information, but in reality they are not sharing anything that cannot be found in hundreds of other places on the Internet, and are really excerpts, bits and pieces of the Hammer and Mandrel Technique.   Or, sometimes I've seen them just taunt the novice coin ring maker by showing them some really beautiful coin rings and then brag that they know the "secrets" and they are not giving them up.

Well, now you know what Coin Rings and the NSA have in common.  They are both very secret organizations.  So, in reading this particular posting, did you discern which group (5% or 95%) I am in?  Well, certainly I started out in the 95% group - but today I could be in the 5% group. I can't really divulge any more than that.... sorry... <grin>.




 

Wednesday, August 27, 2014

Coin Rings

Lately I've been getting interested in a new little hobby. Making coin rings requires some special techniques as well as a few special tools.  Guess I'm having as much fun refining and improving my methods as I am actually turning out the rings.