Re: [CAD_CAM_EDM_DRO] Spindle dimensions & tapers

At 07:00 AM 6/9/02 +0000, you wrote:

>Most machine makers would try to sell machines to the newbies
>with proprietary tapers, and every maker had several of their
>own confounding tapers, as well as the established ones.
>Just like software incompatibility, it locks you into one source
>for tooling.

That's a stretch. If so, no tooling would be standard. What really happened
is that these tapers originated when there weren't standards, nor were
machine makers so much in touch. Hence at different times and sometimes
widely separated locations, they devised their own out of necessity. For
example, Jarno is Scandinavian, B&S and Jacobs are American. But if you
look at the tooling industry as a whole, over time you see that they have
tried to make things more universal.

Regards, Hoyt


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