Thread Tools
Aug 19, 2019, 12:07 AM
Seriously?
BE77 Pilot's Avatar
Thread OP
Looks really nice and you are not giving yourself enough credit, that is beautiful.
Aug 19, 2019, 12:19 AM
Sharing lunch with Jonesy.
RCWorks's Avatar
Quote:
Originally Posted by BE77 Pilot
Size 15 or 16 coin rings are not a problem. Actually if you're working with a Morgan sized coin big rings are easier.
I can make the mandrel, I can make a tool for the lathe to push the coin. A lot faster than doing it by hand, but probably considered cheating.

My fear is after going and doing it would it be like my watches, seldom worn because I'd find them an irritant. After so many years of not wearing such things, they drive you nuts when you do. Hence I only wear pop's watch on his birthday. It's a nice watch. A Swiss Army watch made from titanium, still like new. (Like my Fossil Klingon watch.)
Latest blog entry: Jonesy's mausoleum
Aug 19, 2019, 12:38 AM
Sharing lunch with Jonesy.
RCWorks's Avatar
The easy way...
Making a Coin Ring the Machinist Way (DIY) (5 min 49 sec)
Latest blog entry: Jonesy's mausoleum
Aug 19, 2019, 12:48 AM
Seriously?
BE77 Pilot's Avatar
Thread OP
Yeah, quarters are easy, try that with a silver dollar.
Aug 19, 2019, 01:00 AM
Sharing lunch with Jonesy.
RCWorks's Avatar
Quote:
Originally Posted by BE77 Pilot
Yeah, quarters are easy, try that with a silver dollar.
I have the means to make an expanding mandrel but you can actually buy one.

https://contenti.com/economy-ring-stretcher-reducer
Latest blog entry: Jonesy's mausoleum
Aug 19, 2019, 03:23 AM
Registered User
Quote:
Originally Posted by BE77 Pilot
Looks really nice and you are not giving yourself enough credit, that is beautiful.
Thank you. It was a bit of a mind bender and when it was slowly turning into a bangle instead of a ring I started getting worried, so I had to turn up a die to squeeze it down (many times) which really worked well to even out the wall thickness.

I've got pictures of most of the stages but here're a few more. The missus was laughing at me at the end of day one because it was fairly chunky looking (rustic?) but after I got my head around getting the metal to flow in the right directions it started to take shape.

I lost 0.08g (~$5aud) in the process. No cutting drilling, filing or abrasive polishing, just annealing, spot melting, hammering and burnishing.
Aug 19, 2019, 04:21 AM
Official Old Git!
Interesting thread!
Aug 19, 2019, 04:49 AM
Wake up, feel pulse, be happy!
Piece's Avatar
Haven't tried with coins, but here are my four surviving ring experiments. The denim, brass, and steel have been worn continuously since last Septemberish. The twine is a bit younger.

The mahogany one slowly broke apart and finally shattered last weekend. I also did one in walnut and basswood that looked pretty neat, but it only lasted a few weeks.
Latest blog entry: Jeti ESC resto-mod
Aug 19, 2019, 04:58 AM
Wake up, feel pulse, be happy!
Piece's Avatar
Oh, and another brass one that got turned into a car key.

Latest blog entry: Jeti ESC resto-mod
Aug 19, 2019, 08:55 AM
Seriously?
BE77 Pilot's Avatar
Thread OP
Quote:
Originally Posted by RCWorks
I have the means to make an expanding mandrel but you can actually buy one.

https://contenti.com/economy-ring-stretcher-reducer
Yes, I have a cheap one from Ebay. The reducer wheel is total crap but the stretcher works really well.
Aug 19, 2019, 04:14 PM
Registered User
Quote:
Originally Posted by Piece
Oh, and another brass one that got turned into a car key.

That's interesting.

Your car key has seen some work, mine's worn to rolling undulations as well rather than distinct plateaus. I guess as long as the key and barrel wear out at the same rate it's all good???
Aug 23, 2019, 01:22 PM
Seriously?
BE77 Pilot's Avatar
Thread OP
After a few that didn't turn out so well, this one is looking better. A learning curve for sure.


Quick Reply
Message:

Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Discussion Anyone here making there own frames? kramersteen Scratchbuilt Multirotor Drones 27 Mar 18, 2018 10:15 PM
Discussion Does Anyone Here Make Use of the HDMI Port? spinellib Aerial Photography 1 Apr 12, 2017 09:42 AM
Has anyone here ever tried designing and installing their own landing lights? Starguard DIY Electronics 5 Feb 10, 2005 01:28 PM
Anyone here tried the Dymond Cobalt 480?? DaJudge Electric Plane Talk 6 Jun 17, 2001 12:31 AM