Re: Locating already drilled holes

---Ian,
I am not a southerner anymore, we came to Canada in the early 80's to
escape the recession and walked into one that had just started and
never went away (in friendly Quebec that is!). Can't win em all.
I served an apprenticeship as a scientific intrument maker in London,
seems a million years ago, the last century at least. Tradesmen used
wear ties and and polish their shoes in those days! Anyway, I
understand what you mean.
We have just started getting Emmerdale (Farm) on our local TV Station
and I must admit there is not a cloth cap in sight, not even the
marks
left by one.
Terry

In CAD_CAM_EDM_DRO@egroups.com, "Ian Wright" <Ian@i...> wrote:

> Hi Terry,
>
> Wot's a bike? I still have to use Shank's pony and hike up 't hill

ter 't

> pit sparkin' me booits on't causey edge, wi' me sarnies in mi' snap

tin.

> (translation for non English [Yorshire] speakers - I still have to

walk up

> the hill to the coal mine, as a distraction I kick the soles of my

clogs

> against the edge of the sidewalk causing the iron attachments to

the
soles

> to make showers of sparks which glow brightly in the early morning

gloom. I

> carry my sandwich lunch in my metal lunch box.)
> I envy you rich Southern softies...;o)
>
> Seriously, old methods do still have their place and the razor

blade
trick

> is one of the best methods I know for lining things up - there's

nothing to

> go out of calibration and no errors are possible from confusing the

units

> used! Its even self checking as, when you have the two points

adjusted so

> that the blade is gripped and standing exactly at right angles to

the axes

> indicating perfect alignment, you can rotate the spindle holding

one
of the

> points which will instantly tell you if the points are truly

concentric or

> not.
>
> Most of the 'work' I do is restoration of antique watches where I

use the

> original construction methods (and tools) as much as possible.

Most
of my

> small turning is done between centres using hand powered lathes or
> bow-driven 'turns' and doing so is MUCH quicker than trying to set

up the

> jobs in a conventional powered lathe using chucks and collets. It

is
also

> more accurate and I am less likely to get breakages as, using a

hand
turning

> tool, I can feel the cut and so adjust the pressure and speed to

keep it at

> its optimum - the brain is a far better computer than and cnc

machine has!

> Nowadays we marvel at how the old-time craftsmen produced their

beautiful

> creations without the benefits of 'modern technology' and yet, if

you go

> back to the methods and tools of the period, you find that

re-creating such

> wonders is really not that difficult after all. I often wonder

whether we

> are not getting too clever for our own good. Are we making

machines
to turn

> out thousands of identical new parts simply because we have lost

the
skills

> to repair old ones or because we can't make 'em last any more? How

long

> will it be before these machines have converted all the worlds

accessible

> resources into worthless landfill?
>
> *pensive mode off* ;o]
>
> Ian
> --
> Ian W. Wright
> Sheffield UK
> ----- Original Message -----
> From: "Terry Ackland" <hexagon@o...>
> To: <CAD_CAM_EDM_DRO@egroups.com>
> Sent: 10 October 2000 23:32
> Subject: [CAD_CAM_EDM_DRO] Re: Locating already drilled holes
>
>
> > --- Ian,
> > bits of razor blades and old WD optics? Tell me you still ride

your

> > bike to mill with your egg sandwiches in a gasmask bag. I can

rember

> > the days when us Brits did not have the proverbial pot but things
> > have
> > changed - at least down south.