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The Magic Cafe Forum Index » » The workshop » » Making gaff coins and Tooling (2 Likes) Printer Friendly Version

jack_shields
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53 Posts

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Hello all,

Does anybody know the best way to cut a circular recess into one side of a coin?

Eg 20mm diameter recess into the back of a 10p.

Sort of if you were making a shell to fit a smaller coin on one side but leaving it unchanged and unnoticeable on the other.
Kind regards
Jack
Bill Hegbli
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Eternal Order
Fort Wayne, Indiana
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You will most likely have to buy a lathe.

Go here: http://www.jamesriser.com/Magic/JamesRiserMagic.html

Scroll down to the topic, For the Do-It-Yourself Magician. He offers how to make coin gaffs.
Stephon Johnson
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Razorback Country
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CNC machines are very expensive! You can ask Jake Jr. at Airship Magic to machine something FOR you. I have had them make things for me. Ask for a quote from them to make your gaff.

Thanks
Steph
WHAT IF you wake up tomorrow with ONLY the things that you THANK GOD for today?
Bill Hegbli
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Eternal Order
Fort Wayne, Indiana
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You don't need a CNC machine, just a small Lathe, of course you have to go to learn how to set one up.
Mad Jake
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Inner circle
All the voices in my head helped me make
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Quote:
On Jul 8, 2020, Bill Hegbli wrote:
You don't need a CNC machine, just a small Lathe, of course you have to go to learn how to set one up.


Using a CNC vertical mill is a lot quicker than setting up a manual lathe. Total time to do what is being discussed is about 7 minutes. Between
set up and making the cut on a lathe can take a lot longer and will cost more.
For quality Paul Fox Cups spun on Danny Dew's Paul Fox tooling visit us at www.airshipmagic.com
Mad Jake
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Inner circle
All the voices in my head helped me make
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Quote:
On Jul 8, 2020, Bill Hegbli wrote:
You don't need a CNC machine, just a small Lathe, of course you have to go to learn how to set one up.


A lathe is a lot more expensive that a small vertical cnc mill. With a cnc you make a simple jig for a 10p coin in minutes.

Using a lathe you will need to make a collet for the coin, which is a lot harder and timely than making a jig.
For quality Paul Fox Cups spun on Danny Dew's Paul Fox tooling visit us at www.airshipmagic.com
Bill Hegbli
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Eternal Order
Fort Wayne, Indiana
22840 Posts

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Jack_shields, post did not mention anything about if he was going into business.

I had a friend that that wanted to make wood thimbles. He got a small lathe for around a hundred dollars, made some great looking thimbles. The lathe could set on a desk, it was no more then 2 feet long, and 10 inches high.

Some books from the library and he was operating it in a few days.

Jack only wants to make a coin with a recess circle on one side. He could do that with disc of sandpaper, and a few hours time. The coin can be held against a table with a clamp.

By the way Jack, you have to make the recess on the back side of the coin. Otherwise it will do as you mentioned, show through.
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