Re: [CAD_CAM_EDM_DRO] Spindle dimensions & tapers

bjammin@... wrote:

> 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.

Oh, no arguments there! Definitely, over time, standard tapers have become
dominant, especially in post WW-II machines. And, buyers know to ask for the
standard tapers, too!

Jon