Re: [CAD_CAM_EDM_DRO] Renishaw, digitizers

3 nails? Why not just 2? Or perhaps the 3rd nail is used as the cutting
tool?

Smoke

>Hi Alan,
>
>Yes, I think you would get a good enough depression for the top plate and
>the benefit is, of course, that if the balls are not precisely at 120 deg.
>apart, the dimples would be properly aligned automatically. The amount of
>discussion that has gone on about this sensor up to now seems to me to be
>totally out of proportion to the job. One gets the distinct feeling that
>people want to make jobs like this as complicated as possible just so they
>can use their fancy machines ;O) I, on the other hand, tend to work mainly
>with machines and equipment firmly rooted in the 18th and 19th century when
>there weren't even electric motors - and, as I am sometimes called upon to
>demonstrate, I can turn small parts more accurately on a lathe made from 3
>nails than on an expensive fancy job. So, if I can make accurate

depressions

>on a brass disk by clouting it with a hammer, I will tend to do that rather
>than spend a couple of days trying to figure out how to do it a more
>complicated but 'modern' way!!
>
>Ian
>--
>Ian W. Wright
>Sheffield UK
>www.iw63.freeserve.co.uk
>----- Original Message -----
>From: "Alan Marconett KM6VV" <KM6VV@...>
>>
>> You think that would be deep enough? I was thinking of using a ball end
>> mill, and Jon suggested a countersink. I still need good pockets for
>> the three balls. They wouldn't have to fit perfectly, in fact, they
>> could be a drilled pocket, and pressed in.
>
>
>
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