Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work.

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Default How did they make this?

http://www.liveleak.com/view?i=96d_1343900392


Regards,

Boris Mohar

Got Knock? - see:
Viatrack Printed Circuit Designs (among other things) http://www.viatrack.ca

void _-void-_ in the obvious place


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Default How did they make this?

On Thu, 02 Aug 2012 19:42:52 -0400, the renowned Boris Mohar
wrote:

http://www.liveleak.com/view?i=96d_1343900392


EDM'd out of two ball bearings.



Best regards,
Spehro Pefhany
--
"it's the network..." "The Journey is the reward"
Info for manufacturers: http://www.trexon.com
Embedded software/hardware/analog Info for designers: http://www.speff.com
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Default How did they make this?


"Spehro Pefhany" wrote in message
...
On Thu, 02 Aug 2012 19:42:52 -0400, the renowned Boris Mohar
wrote:

http://www.liveleak.com/view?i=96d_1343900392


EDM'd out of two ball bearings.



Best regards,
Spehro Pefhany


And then lapped as assembled to make the surface perfectly continuous with
uniform surface finish.

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