drilling pencil lead on a lathe
On Tuesday, November 1, 2016 at 2:05:38 PM UTC-4, Electric Comet wrote:
ok he was not using a wood lathe but one could turn wood on this lathe
if one wanted to
he drilled a hole through a point 7 or point 9 mechanical pencil lead
it was a competition and his competitor was using another technique
that was more interesting and did not involve a lathe
i think it was called edm or something like that
it used an oil bath and electricty to drill into the lead
the drill bit was an electrified probe where the electricity did all
the work
very precise and acccurate too
iirc the edm shop buttered its bread doing fuel injector nozzles
It must be true...A keyboard with no punctuation keys...Why else would someone go thru the effort of typing 5 letters in lieu of 1 simple keystroke?
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