Re: First angle and Third angle

--- In CAD_CAM_EDM_DRO@e..., Peter Chen <cadcamcenter@y...> wrote:

> [John Stevenson" <machines@n...>
> [Yes quite a few of the newer prgrams, Solid works,
> Solid Edge,
> Microstation all have the ability to preselect what
> ever standard you
> want to draw in. Select ISO and all you layouts will
> be in ISO
> standards including dimensioning]
>
> Wish I have the time to learn all of them! Anyway,
> hope that
> this ISO standard, etc, isn't just refering to the
> border, title
> block, etc. but to actual automatic generation of the
> views
> from a model (please confirm).

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You don't have to learn them all, only one.
Solid Edge after selecting the standard will then do all the
generation of views to that standard. It will also do automatic
auxillary projections and sections. Just draw a parting line where
you need a section, click the section button, drag the line the where
you want it to apppear on the drawing and it automatically generates
the section, including hatching.

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to replace those in older machinery.]

>
> How about creating new metric standard for use or
> ornament? Regarding older machineries, isn't that the
> reason those stubborn Americans are still sticking to
> their Imperial inches and gallons. Don't we have to
> start somewhere, sometime, or do we still continue
> postponing the inevitable and prolong the pain (the
> pain will definately be more painful the longer we
> prolong it, there will be more and more "older
> machineries" as time goes by) for example:
> Current frustration: Denford mill (Imperial
> manufacturer?) uses metric collet. I have some
> relatively cheap Dremel cutters which I wanted to use
> on the Denford mill and Dremel bits are imperial!!!!
> And I have been hunting for a V-end mill here without
> success!!! And no one can supply me an Imperial collet
> for the Denford Mill. Isn't this run-about reason for
> me to start shouting for everyone to make an extra
> effort towards standardisation?
>

It wouldn't matter if we standardised tomorrow the legacy of old
machines / drawings will take more than our lifetime to clear.
I look after some machines that were built in France in 1893. They
are a weird metric thread that no longer exists. Even if we
standardise tomorrow these types of machine will still exist as there
are no modern machines to replace them.

John Stevenson
Nottingham, England.