Re: Conversion

--- In CAD_CAM_EDM_DRO@y..., "James Owens" <wotisname@l...> wrote:

> Hi,
>
> I'm working on a DRO and am having some confusion over the

conversion of

> metric units to inches and back again. The device should be able to

read

> glass scales down to 0.001mm or 1 micron so it is important to get

this

> right.
>
> I have always used 1" = 25.4 mm but on trying to work it out with a

little

> more accuracy I find that an English mile = 1.609 kilometres or 1" =
> 25.39457071 mm. but this figure changes depending on who it is

coming from.

>
> Does the list have any opinions on this.
>
> Regards,
>
> Terry

I live in a metric world and it's correct 25.4mm per inch no more
no less.