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28th November 2012, 06:07 PM #16SENIOR MEMBER
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If you wanted anodised aluminium, making a split wooden pattern, and casting it would be not a bad option as you would save a lot of material that way ... but you would need a metal lathe that had a big enough swing to clean up the casting and cnc would be best for a consistent finish. If it was a 4 axis cnc mill you could also add another design element such as the sweep of each ring spiralling into the next..
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28th November 2012 06:07 PM # ADSGoogle Adsense Advertisement
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28th November 2012, 11:54 PM #17
You can spin ally on a wood lathe and use a spindle gouge too with no problems
A lot smaller, but no problems doing it on my wood lathe..My ambition is to grow old disgracefully. So far my ywife recons that I'm doing quite well! John.
http://johnamandiers.wixsite.com/johns-w-o-w-1
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2nd December 2012, 10:35 AM #18
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2nd December 2012, 08:07 PM #19
I have never tried it with brass, but if the occasion ever arose then I don't really see why not? If anyone knows any different then I will bow to your experience..
I had the speed for the ally at about 1000 rpm as it is a small item and held it in my O'Donnel jaws with support from a cone live centre at the other end. Then slowley, slowley. I finished up with a huge pie of ally wool for the size turned!
Light cuts. If you try too heavy cuts it chatteres like hell! And keep your tools sharp. If you have decient HSS tools they don't blunt too quickly.My ambition is to grow old disgracefully. So far my ywife recons that I'm doing quite well! John.
http://johnamandiers.wixsite.com/johns-w-o-w-1
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3rd December 2012, 05:10 AM #20GOLD MEMBER
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- Sep 2008
- Location
- North Carolina, USA
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- 2,327
High speed steel tool bits are still used on lathes, mills, drill presses, and shapers for metal cutting of steel, brass, bronze, aluminum, pot metal / zinc, and cast iron.
I have faced a cast iron face plate with a sharpened broken Phillips screw driver bit using a metal lathe.
One must use the proper surface speed per minute. See:
Machine Shop 2 - Lathe Cutting Speeds - RPM CalculationsSo much timber, so little time.
Paul
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16th December 2012, 07:15 PM #21Senior Member
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- Nov 2012
- Location
- Belgrave, Victoria, Australia
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- 234
Blasphemous to the gods of music as it is, i've started to mock up a basic version of the lamp using a few of my less treasured vinyl records, just so that i can see the sizes of everything as well as get an idea for how hard it'd be to to get tools into some of the undercuts
25 layers used so far and i think there's probably going to be another 25-30 layers of rings and circles to complete the shade
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16th December 2012, 08:09 PM #22
GOOD GRIEF Fudo. You may well get that it the Guiness Book of Records mate
It could even possibly be a light recordMy ambition is to grow old disgracefully. So far my ywife recons that I'm doing quite well! John.
http://johnamandiers.wixsite.com/johns-w-o-w-1
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16th December 2012, 08:42 PM #23Senior Member
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- Nov 2012
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- Belgrave, Victoria, Australia
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17th December 2012, 04:30 AM #24
Stand up!
Never stand up when you can sit down!
Never sit down when you can lie down!
It has sttod me in good stead so far. Or should that be sat me, errrr, or should that be lie me ???
Oh I give up?
Good luck with your new record lamp shade or whatever it is. I don't really connect very well after a 5 hour French pre Christmas lunch Not enough wine? Or should that be the other way around???My ambition is to grow old disgracefully. So far my ywife recons that I'm doing quite well! John.
http://johnamandiers.wixsite.com/johns-w-o-w-1
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17th December 2012, 09:13 AM #25anne-maria.
Tea Lady
(White with none)
Follow my little workshop/gallery on facebook. things of clay and wood.
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17th December 2012, 09:41 AM #26Senior Member
- Join Date
- Nov 2012
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- Belgrave, Victoria, Australia
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- 234
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