[AT] OT: non-tractor covid-19 activates

[Stephen Offiler]

Hi Mark:

YouTube is (of course) awash with CNC Swiss videos.  First several that
come up in a search aren't all that great, because they tend to
narrow-focus on the actual cutting area.  Whereas if you don't have a
decent handle on the big picture going in, this becomes a jumbled
collection of cutting tools coming in from seemingly oddball angles and
making chips fly.  The link I'm providing is pretty good at providing an
overview.  In the first couple minutes he gets into the weeds a bit with a
tiny 4mm machine, but around 3:15 he turns attention to a 20mm machine
which is pretty typical of the breed.  As a trivial side-note, this video
features Citizen machines, and yes it's the same company that makes
watches.  We have 3 Star machines, and yes it's Star Micronics, the printer
company.

https://youtu.be/1lNXDNwAlZc

I've tried to video our machines in action, but it's futile because of the
coolant splashing everywhere.  Most videos trying to demo Swiss will cut
brass so they can kill the coolant for this exact reason.


SO


On Fri, Apr 3, 2020 at 8:01 AM Mark Johnson <markjohnson100 at centurylink.net>
wrote:

> Hey - no problem with the CNC talk, at least not from me. I've been a
> software guy all my life but I find machining absolutely fascinating -
> wish I had learned more about it! I'm learning now...
>
> Mark J
>
> Columbia, MO
>
> On 4/3/2020 5:38 AM, Stephen Offiler wrote:
> > Hi John -
> >
> > Hope the list will tolerate some CNC banter.  We have 1 job that we
> > hold close, using .0001" offsets; all the rest it would be more like
> > .0005" or more.  Swiss excels in small precise stuff and also long
> > slender stuff, and we are heavy on the latter.  Don't need all that
> > precision, but it's handy to have:  I can give the guys setup sheets
> > with .XXX" dimensions and no tolerance, and they can hit the numbers
> > dead-on quite easily.  Keeps me from having to even think about
> > tolerances which is quite a luxury for an engineer.
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