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Making Rings

Coin rings

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Steviegtr23/01/2020 15:54:57
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458 forum posts
121 photos

Another thing I want to make is a stepped arbour to fit in the lathe to rotate very slowly to do detail work around them. I have some Liver of Sulphur which blackens the rings if immersed in hot water mixture for a period of time. Watching people do this in vids, they all seem to then set about the ring with various grades of sandpaper. Idea to highlight the gigh points while leaving the low points black. Giving the ring an antique look. From what I have watched attacking a soft ring with sand paper is not my idea of being delicate. Hence the mandrel in the lathe so that the hi points can be carefully addressed without removing any material from it. Then to polish with to good old Solvol. I have done a lot of polishing work , see pic of a from my Classic Suzuki. Suzuki frame

Steviegtr28/01/2020 01:56:33
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458 forum posts
121 photos

Been messing on the lathe today. Made a complete blooper trying to turn a ring expander down to make a stepped ring holder. The whole thing exploded & wrecked everything. To top it all the cross slide on the carriage went tight to move. Thinking the worst as always I guessed I had bent the cross slide casting. So I stripped the whole thing off, only to find that with the vibration the lock screw had moved inward & made the whole thing tight to move. Phew. A few further pics of my progress with the rings. The 1st one I made was a 2 shilling piece. It was not very good & very wonky. Tonight I attacked it again & made it a bit better. Now it is called a fat tyre.

I am sure a lot of you members are perfectionists. You look at something & say that is not quite right. I have been like that since I was a kid. I guess these days the establishment will have a meaning for the condition. I am sorry ma'hm your son is a nutter. Or has something zymer disease. I am trying really hard to get right.

Before I start with the Silver ones that will be bad if I mess them up. Anyway a few pics of tonight's progress. You will see the black on the coins, this is Liver of sulphur. It is supposed to stain the metal black to give the patina look. ( JA have I spelled this correctly, feel free) It comes off very easy so not really suitable. I am working on a way to stain a permanent colour which will never come of & not discolour the finger. I digress as usual here you go. Enjoy.Getting betterFilthy hands, great

Liver of sulphur

Ian S C30/01/2020 12:36:28
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7467 forum posts
230 photos

A knurring tool only takes a few minutes to make from a bit of scrap steel, a flint wheel from a Bic lighter, and a roller from a small roller bearing. first the wheel needs to be fitted with a bronze/brass bush or it will do it's best to cut the pin. A forked end in the steel body of the tool, with a transverse hole to take the pin. In use use plenty of oil down the sides of the wheel. This tool will knurl most steels normally used, I'v used it on 4140, it does a good job on aluminium and brass. Must get a photo with better contrast.

Ian S C

dsc01160 (800x600).jpg

Steviegtr30/01/2020 15:04:45
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458 forum posts
121 photos

Ian S C . Thanks for the picture. Could I make the tool from square section brass. I say this because those pins on the flint are very small & I would not be able to make bushes so small. Also what or where is the roller, from a roller bearing.

I have taken a few lighters apart & all those have the pins fixed. How would I get the thing assembled without the fork being bolted together.

Steve.

Ian S C31/01/2020 13:43:24
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7467 forum posts
230 photos

The pin came from a bearing from the bearing cup in a universal joint, size about 3/32" dia.,x 0.09652", the bronze bearing, a bit of brazing rod. To make The fork, I drilled a hole vertically just short of the width of the wheel, then I cut the slot by hack saw. Turned the piece 90* and drilled the hole for the pin. The slot was opened with a file to take the width of the bush, about 0.010" greater than the wheel. The wheel should protrude about 1 mm past the end of the fork. It would be possible to make the body of the tool in one central, thickness of wheel plus clearance for the wheel, then two cheeks either screwed or riveted. The holes for the pin should be lightly centre punched around the edge so the pin won't fall out. The idea was taken fromStan Bray's Introducing The LATHE. It's getting past my bed time, so good night from me. Ian S C

Steviegtr31/01/2020 14:28:18
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458 forum posts
121 photos

Ah now I understand. The wheels that i have looked at so far have the pins fixed in. So I need to find one with a loose pin. Many thanks.

Steve.

Ian S C31/01/2020 14:29:47
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7467 forum posts
230 photos

Missed this bit, yes you could make the body of the tool from brass, steel is a bit more robust, and the tool will last for years, I'v got some spare flint wheels threaded on a saftey pin I'll never need them. Ian S C

Steviegtr31/01/2020 14:44:43
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458 forum posts
121 photos

I am not desperate at the moment so will look around. If I get stuck you may get a P.M. Thanks.

Steve.

Steviegtr06/02/2020 17:56:42
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458 forum posts
121 photos

Thanks to a forum member's suggestion, I made a miniature knurling tool from a flint.I took it from a old Zippo style lighter. Using a piece of solid alloy bar so I can either hold it or fit it to the tool post. Also made a mandrel for holding in the lathe chuck. Some pic of some more rings that I have made for someone. The blue one was today. Just messing with some alloy. Too fat but turned out ok. Need to get some Titanium, as they say the colour run is brilliant .latest rings.jpgflint knurl.jpgmandrel works ok.jpgblue ring.jpgblue ring 2.jpg

blue ring 3.jpg

Steviegtr07/02/2020 19:24:25
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458 forum posts
121 photos

Amazing what you can do with some scrap ally bar, some party glitter & super glue.

Steve

green 2.jpg

Derek Lane07/02/2020 20:38:01
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282 forum posts
68 photos
Posted by Steviegtr on 06/02/2020 17:56:42:

Need to get some Titanium, as they say the colour run is brilliant .

You can buy the ring blanks in titanium

Steviegtr07/02/2020 23:19:44
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458 forum posts
121 photos
Posted by Derek Lane on 07/02/2020 20:38:01:
Posted by Steviegtr on 06/02/2020 17:56:42:

Need to get some Titanium, as they say the colour run is brilliant .

You can buy the ring blanks in titanium

Thanks for that.

Steve.

Steviegtr12/02/2020 00:33:36
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458 forum posts
121 photos

Thanks to Derek Lane. I purchased these items & some more too. This is a Titanium ring blank which screws apart. Not going to try & make one but it is very well made. The 2nd item is a piece of Black Palm wood which I am going to try & cut & fit onto the blank. From reading it seems Palm wood is very hard to work with because it is very flaky. Cutting on a lathe can have dire consequences. Onward hopefully.

Steve. titanium ring.jpgpalm wood.jpg

Steviegtr15/02/2020 00:07:06
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458 forum posts
121 photos

For the last 2 days I have been using the Myford to make a coin punch. I saw one for sale in the USA. Jason's works I think. It was £144 & looks the business. But £144 & probably some duty & delivery. So I bought some 2" BSP fittings , which consisted of a coupling or known as a socket. Also 2- 2" Blanking plugs. They are pressure test plugs for commissioning systems & are made from solid 316. I used to buy a lot of fittings from a company in Normanton when I had my company, so went to see them. I got a good discount & came away with the parts I thought I needed.

I have machined one plug with an internal taper & a 9 1/6" reamed hole to accept the punch square on to centre.

The other plug I have machined to accept the die for the punch. Unfortunately there were 2 sizes of die, so I had to machine 2 recesses.

After machining 12mm from the socket , both parts meet in the centre. Finished it at 10;30p.m I gave it a try, my only worry was that I am an amateur at lathe work & was worried that the through holes might not be in line. I guess line boring is the answer to that one. But I did them separately . I made each part as a separate project, so not to confuse the getting very old Grey matter.

Meaning if I pressed the punch on my 12 ton press & they were not in line it was, back to the drawing board.

I spent ages measuring & then re-measuring, (tips from guys on here). Ended up junking the Digital (CALIPERS) & using the old M&W micrometer's. A lot of sitting down & talking to myself to get a second opinion. You must have all done it. The outcome was a eureka, Perfect. The problems i was having with not being able to punch the coins dead centre meant, When pressing through a tapered die the coin would canter over & stretch all wrong. Then spending an age annealing & compressing & re stretching. It is not complete because so far I can punch old 2 shillings as pic, half crowns, Larger Morgan dollars & commemorative British Silver coins. Smaller coins will not fit so some more thinking needed. Forgot to say. Will probably turn down the hex & knurl. When a get a Knurling tool. Only have the little flint one I made. 

Steve.new punch.jpgnew puch dies.jpg

Edited By Steviegtr on 15/02/2020 00:08:40

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