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Thread: Engine turned ?
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10th Apr 2013, 08:18 PM #1
Engine turned ?
Hi
Watching the antique shows on TV, they often refer to the fancy wavy finish on a metal item e.g., a ciggy or jewlery case , as being 'engine turned' . I gather that a machine does the work ?
Mike
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10th Apr 2013, 09:09 PM #2Pink 10EE owner
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Do you mean circular polishing?
The book I have here says to do it with a small wire wheels like this QTY 2 - De-Carb Wire Brush Set - For Drill - Remove Carbon | ThatCable.com
in a drill press using valve grinding compound as polish... Moving over I think half and up half a circle each new line so the lines overlap.Gold, the colour of choice for the discerning person.
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10th Apr 2013, 09:39 PM #3
Morrisman have a look at the video here http://www.woodworkforums.com/f22/no...sketch-163681/
It will explain much
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10th Apr 2013, 09:41 PM #4Diamond Member
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Hi,
I was reading last night in a Southbend Drill press manual from the 50's the same thing but they said you could use wooden dowels or MS dowels with paste to achieve the desired effect.
Ben.
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10th Apr 2013, 09:43 PM #5
web site
This web site is interesting , but he doesn't explain how it is done ?
Eamonn Keogh's Engine Turning Page
I Will have a look at that video when the library opens
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10th Apr 2013, 09:49 PM #6
Your right modern version Engine Turning on Torchmate R2.AVI - YouTube
The boxes though were Rose Engine Turned usually by a jeweler see the video link I put up in pervious post.
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10th Apr 2013, 09:52 PM #7Cba
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Some hints here:
Engine turning finish
and especially this one:
Engine Turning vs. Spotting
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10th Apr 2013, 09:56 PM #8Philomath in training
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There are two things that are commonly referred to as engine turned - the polishing pattern seen on metal objects (like the back of fuel tankers). This is done with a circular pad (and some polishing compound) and can be done easily in a workshop with a felt pad and a drill press.
Fuel Tank 071 (Medium).jpg
Then there is the stuff also known as ornamental turning. This is done with a special lathe but with various gearings on the tool and on the chuck that move the work in a cyclic pattern. This was a hobby activity for gentlemen in ages past, where they would decorate ivory, ebony and other items with incredible patterns. This example shows a continuous cut but some of the patterning is interrupted, or super-imposed on other patterns. Doesn't have to be just on a face either - it can be on the sides of a cylindrical or square object.
Sonnen-Guilloché_Muster_auf_Uhrwerk_Zahnrad_01 (Medium).jpg
Michael
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10th Apr 2013, 10:00 PM #91915 17"x50" LeBlond heavy duty Lathe, 24" Queen city shaper, 1970's G Vernier FV.3.TO Universal Mill, 1958 Blohm HFS 6 surface grinder, 1942 Rivett 715 Lathe, 14"x40" Antrac Lathe, Startrite H225 Bandsaw, 1949 Hercus Camelback Drill press, 1947 Holbrook C10 Lathe.
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10th Apr 2013, 11:24 PM #10Senior Member
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I posted some time back on the Ray Mac tool and cutter Grinder,Cant find the postings but I did the fancy turned finish to the metal ,
by making a small metal rod with a piece of metal 3/8th dia which I stuck a thin rubber pad and then glued abrasive paper and use a pillar drill to make the fancy work you are able to make complete rounds or half lap or play with it to make all kinds of patterns I have the photos in the library,but don't know how to now get them out, to show what I mean ,Hope this helps Morrisman the rubber is inportant as it allows for some movement,
Eddie
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11th Apr 2013, 09:36 AM #11
Michael I beg to differ Ornamental Turning is alive and well right round the world today. I was a member of the Ornamental Turners Group of Australia am now a member of the Society Ornamental Turners in the UK. Yes still a bunch of old blokes enjoying them selves making the machines then experimenting with them. Oh International Ornamental Turners are the US mob.
Not so much playing about if you watch the video on my first link life is still full of OT/engine turned things we take for granted. Of course there are the masters of Horology?Last edited by wheelinround; 11th Apr 2013 at 05:31 PM. Reason: spelling of first not fist
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11th Apr 2013, 02:39 PM #12Philomath in training
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Sorry.
"Gentlemen in ages past and the present"
Didn't mean to imply that no one did it these days.
Michael
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11th Apr 2013, 03:28 PM #13Senior Member
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Rose engine lathe
One day I'd love to get a rose engine lathe for doing the cases of pocket watches and the dials. With the prices they fetch I figure I'm gonna have to make one myself. Which I'm quite excited about actually. It's on the list of things to do in the next 10 years.
Here's one to look at, I think it's fantastic:
Ornamental Rose Engine Lathe - antique Rose Engine description
George Daniel's has a very good write-up about them in 'Watchmaking', a very nice book. Roger Smith, who worked with Dr. Daniel's has some good video's on Youtube, this is just one of them.
Part 2 of 5 - Rose Engine Turning by Roger Smith - YouTube
Joe
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11th Apr 2013, 05:35 PM #14
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11th Apr 2013, 11:19 PM #15
I saw this vid some time back, it was advertised at the end of another vid on utube. I've looked at their website and some of the watches they make are stunning. I would hate to see the price tag though.....
1915 17"x50" LeBlond heavy duty Lathe, 24" Queen city shaper, 1970's G Vernier FV.3.TO Universal Mill, 1958 Blohm HFS 6 surface grinder, 1942 Rivett 715 Lathe, 14"x40" Antrac Lathe, Startrite H225 Bandsaw, 1949 Hercus Camelback Drill press, 1947 Holbrook C10 Lathe.
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