RE: Re: OT: Help Required, don't know where else to look!!

[Rob Iles <rob.iles@xxxxxxxxx>]

Lol! Happy new year to all :-)

--
Rob Iles
Proprietor & Chief Automation Architect
Domia Lifestyle
www.domialifestyle.com
On 2 Jan 2012 10:22, "Phil Harris" <phil@xxxxxxx> wrote:

> **
>
>
> "Specifically, 50% of an engineering department (50 folks) spent
the
> morning
> looking around for spare keyboards and hammering keys because some
bright
> spark thought the cleaners should blast the keyboards clean :-("
>
> ...and therein lies the problem! The issue is not with the use of
> compressed
> air to clean a device per se but inappropriate use of a tool (in this
case
> canned air) by inappropriately skilled staff (generally commercial
cleaners
> tend to be nightworkers on minimum wage) who are up against a time
schedule
> determined by some boss who also has no idea what they've been asked
to do
> but has been given a directive by someone further up the managerial
tree
> who
> thought it would be a good idea.
>
> Whilst I don't doubt the keyboard cleaning example given, the question
from
> Simon was about why not to use a vacuum cleaner to remove dust from
what
> would be a pretty simple PCB - the use of the phrase "vacuum
cleaner" would
> imply to me the use of a domestic vacuum cleaner of the Dyson / Meile
type
> which aren't exactly precision tools and I didn't realise that it
would be
> assumed that the user would be expected to modify their vacuum cleaner
into
> something that resembles an Apollo 13-style "square scrubber in
round hole"
> type arrangement. However I guess given the UKHA_D mantra of
"Let's not use
> the right tool for the job because it's too expensive so let's hack
> something up that almost does it then grumble that it doesn't work
right
> instead" I shouldn't be surprised. After all - if the cleaners
had been
> told
> to turn their "Henry's" on the keyboards instead of the
canned air then the
> engineering department used in your original example may have spent
more of
> their day hunting for and refitting keycaps and straightening ripped
apart
> key mechanisms. :-D
>
> In my earlier reply I did specifically suggest that an extension straw
can
> be used to precisely target areas for cleaning with compressed air -
as
> extension tubes are typically provided with canned gas and I haven't
come
> across an airline airgun yet that has the precision or facility to
insert a
> flexible straw to precisely direct flow and also that for most people
their
> access to compressed air it down to canned gas rather than having a
> compressor handy (yes, for the record I do have a 2hp 50 litre
compressor
> with both short and long reach airguns - neither of which I would
consider
> using on any sensitive electronics in the same way as I have a number
of
> hammers in my toolkit and wouldn't consider using the lumphammer for
every
> task) then I - obviously mistakenly - assumed that it wasn't essential
to
> specify that I was talking about canned gas given that that is how
probably
> at least 90% of people here would have access to.
>
> I shall remember this in the future and try to be much more precise
with my
> replies and given the "cleaners and keyboards" example I
shall pop
> downstairs and tell my landlady that I no longer want her to remap the
ECU
> in my TVR...
>
> Happy New Year to everyone...
>
> Phil
>
> > -----Original Message-----
> > From: ukha_d@xxxxxxx [mailto:ukha_d@xxxxxxx] On Behalf
> > Of domdevitto
> > Sent: 01 January 2012 13:37
> > To: ukha_d@xxxxxxx
> > Subject: [ukha_d] Re: OT: Help Required, don't know where else to
> > look!!
> >
> > Hmmm, but if you put a plastic restrictor on the vaccum, you get
quite
> > a airflow going, and if you tape that up, I'd reckon it's similar
to a
> > compressed air can.
> >
> > Why *I* never recomment compressed air is because it can blow -
very,
> > very hard, things into places you don't want. Specifically, 50%
of an
> > engineering department (50 folks) spent the morning looking
around for
> > spare keyboards and hammering keys because some bright spark
thought
> > the cleaners should blast the keyboards clean :-(
> >
> > IMO, you need to decide where the crap is going to go, and choose
push
> > vs pull, but IMO, pulling is less likely to suck crap somewhere
bad,
> > unlike pushing - though maybe that's related to the hugeness of
the
> > push you get from compressed air.
> >
> > my $0.02
> >
> > --- In ukha_d@xxxxxxx, "Phil Harris" <phil@...>
wrote:
> > >
> > > With compressed air you can get a blast of air from several
inches
> > > away that will displace most dust-bunnies (and you can use a
very
> > slim
> > > straw as an extension for hard to reach places) ... whereas
with a
> > > vacuum cleaner you basically have to be touching the item
(which
> > could
> > > cause damage) to get enough air movement to shift those
wascaly
> > wabbits...
> > >
> > > Phil
> > >
> > > > -----Original Message-----
> > > > From: ukha_d@xxxxxxx [mailto:ukha_d@xxxxxxx] On
> > > > Behalf Of Simon Haslam
> > > > Sent: 31 December 2011 13:54
> > > > To: ukha_d@xxxxxxx
> > > > Subject: Re: [ukha_d] OT: Help Required, don't know
where else to
> > > > look!!
> > > >
> > > > Rob: out of curiosity, why not a vacuum cleaner? In
case you suck
> > up
> > > > something vital?
> > > >
> > > >
> > > >
> > > > ________________________________
> > > > From: Rob Iles <rob.iles@...>
> > > > To: ukha_d@xxxxxxx
> > > > Sent: Saturday, 31 December 2011, 0:22
> > > > Subject: Re: [ukha_d] OT: Help Required, don't know
where else to
> > > > look!!
> > > >
> > > > Simon,
> > > >
> > > > There's a TV Repair place near me (yes, they still
exist!), if I
> > > > have anything analogue / high voltage to investigate,
he's my 2nd
> > > > port of call (if I can't fix it).  Happy to be
middleman / pass on
> > > > details if it helps....
> > > >
> > > > Personally, I'd check all solder joints look good.
Ensure there's
> > as
> > > > little dust as possible in side -- use compressed air,
not a vacuum
> > > > cleaner, check fans (if any) are spinning freely. Check
for
> > > > corrosion on connectors etc.......
> > > >
> > > > Rob
> > > >
> > > > --
> > > > Rob Iles
> > > > Proprietor & Chief Automation Architect Domia
Lifestyle
> > > > www.domialifestyle.com On 30 Dec 2011 19:32,
"simon"
> > > > <simon.millward@...> wrote:
> > > >
> > > > > **
> > > > >
> > > > >
> > > > > Hey guys (and ladies of course)
> > > > >
> > > > > It's been a while since I posted on here, don't
know why. I have
> > > > > checked in now and then!!
> > > > >
> > > > > I'm kinda hoping that someone out there in
wonderful HA world
> > > > > could help me with a hardware problem.
> > > > >
> > > > > I have a cctv Triplexer (GE DVMRe -10ct160) that
seems to have
> > > > > given up the ghost. Sometimes I can switch it on
for an hour or
> > so
> > > > sometimes
> > > > > only five minutes and then it just seems to switch
off!
> > > > >
> > > > > I mean I do work with electronics and have had a
quick look but I
> > > > > am stressing about it. Everywhere I have been to
that can repair
> > > > > it want a ridiculous sum of money, and as I was
given it, I don't
> > > > > (and can't) really afford it!
> > > > >
> > > > > So I am hoping someone could shed some light on
the problem or
> > > > > even point me in the right direction to get it
fixed ;-)
> > > > >
> > > > > Many thanks
> > > > >
> > > > > Simon
> > > > >
> > > > >
> > > > >
> > > >
> > > >
> > > > [Non-text portions of this message have been removed]
> > > >
> > > >
> > > >
> > > > ------------------------------------
> > > >
> > > >
> > > > Yahoo! Groups Links
> > > >
> > > >
> > > >
> > > > [Non-text portions of this message have been removed]
> > > >
> > > >
> > > >
> > > > ------------------------------------
> > > >
> > > >
> > > > Yahoo! Groups Links
> > > >
> > > >
> > > >
> > >
> >
> >
> >
> >
> > ------------------------------------
> >
> >
> > Yahoo! Groups Links
> >
> >
> >
>
>


[Non-text portions of this message have been removed]



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