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From: Joe Kotroczo on 4 Jun 2010 11:19 On 04/06/2010 14:03, in article vqph065ln3noejle4a06a6fri0us8qsh2c(a)4ax.com, "T i m" <news(a)spaced.me.uk> wrote: (...) > Hmm. I think those compressed air cans are expensive so (as it's a > laptop) something you can take in the car down when you pump your > tyres up next. ;-) I wouldn't bet on there being no oil in the air you get from a garage tyre compressor. -- Joe Kotroczo kotroczo(a)mac.com
From: T i m on 4 Jun 2010 11:30 On Fri, 4 Jun 2010 15:30:36 +0100, thewildrover(a)me.com (Andy Hewitt) wrote: >> I picked up one of those suitcase / oil free 'instant' type >> compressors quite cheap (from Makro or some such) a while back and >> it's got just enough ''ooomh' to work as a blower. Whilst it's very >> light it's also pretty noisy so I make sure it's inside and I'm >> outside when I'm using it. > >Hmm, yes, something like that might be handy - or perhaps a modified >cheap modelling spray gun perhaps? Maybe, if the 'modification' includes opening up the nozzle / tubing and having a reasonable reservoir. By that I mean the compressor I have has enough constant flow and pressure to fairly well blow out the inside of a PC, pump up a car tyre, run a crude spray gun etc. Even so, if there is a tricky bit of dust, say stuck between the fins of a heat sink I have to hold off the air trigger for a second to let some pressure build up in the rubber hose [1] then the pressure relief valve will manage the pressure a bit higher. When you pull the trigger the increased pressure and (compressed) volume stored in the hose is usually sufficient to do the trick. Cheers, T i m [1] It came with one of those coily orange hard plastic hoses that not only get tangled but can melt (as I found out). I replaced it with some high pressure rubber fuel hose that is far more flexible and hardwearing.
From: T i m on 4 Jun 2010 12:01 On Fri, 04 Jun 2010 17:19:48 +0200, Joe Kotroczo <kotroczo(a)mac.com> wrote: >On 04/06/2010 14:03, in article vqph065ln3noejle4a06a6fri0us8qsh2c(a)4ax.com, >"T i m" <news(a)spaced.me.uk> wrote: > >(...) >> Hmm. I think those compressed air cans are expensive so (as it's a >> laptop) something you can take in the car down when you pump your >> tyres up next. ;-) > >I wouldn't bet on there being no oil in the air you get from a garage tyre >compressor. You could be right, depending on what type it is. I was thinking most of these coin-op small cabinet type compressors were the dry type so at the worst you might (ironically) just get some condensation. These seem to pump up live rather than being ready to run when you get there like, in the old days. I would also imaging that any airline feeds taken from more traditional reservoir oil lubed / piston type jobbies would have oil and water traps on the clean air outlets? Cheers, T i m
From: Andy Hewitt on 4 Jun 2010 12:52 T i m <news(a)spaced.me.uk> wrote: > On Fri, 04 Jun 2010 17:19:48 +0200, Joe Kotroczo <kotroczo(a)mac.com> > wrote: > > >On 04/06/2010 14:03, in article vqph065ln3noejle4a06a6fri0us8qsh2c(a)4ax.com, > >"T i m" <news(a)spaced.me.uk> wrote: > > > >(...) > >> Hmm. I think those compressed air cans are expensive so (as it's a > >> laptop) something you can take in the car down when you pump your > >> tyres up next. ;-) > > > >I wouldn't bet on there being no oil in the air you get from a garage tyre > >compressor. > > You could be right, depending on what type it is. I was thinking most > of these coin-op small cabinet type compressors were the dry type so > at the worst you might (ironically) just get some condensation. These > seem to pump up live rather than being ready to run when you get there > like, in the old days. > > I would also imaging that any airline feeds taken from more > traditional reservoir oil lubed / piston type jobbies would have oil > and water traps on the clean air outlets? They still get moisture in the air though. Having worked in garages most of my life, you get used to emptying the lines every morning, even with moisture traps fitted. -- Andy Hewitt <http://web.me.com/andrewhewitt1/>
From: T i m on 4 Jun 2010 13:36
On Fri, 4 Jun 2010 17:52:50 +0100, thewildrover(a)me.com (Andy Hewitt) wrote: >T i m <news(a)spaced.me.uk> wrote: > >> On Fri, 04 Jun 2010 17:19:48 +0200, Joe Kotroczo <kotroczo(a)mac.com> >> wrote: >> >> >On 04/06/2010 14:03, in article vqph065ln3noejle4a06a6fri0us8qsh2c(a)4ax.com, >> >"T i m" <news(a)spaced.me.uk> wrote: >> > >> >(...) >> >> Hmm. I think those compressed air cans are expensive so (as it's a >> >> laptop) something you can take in the car down when you pump your >> >> tyres up next. ;-) >> > >> >I wouldn't bet on there being no oil in the air you get from a garage tyre >> >compressor. >> >> You could be right, depending on what type it is. I was thinking most >> of these coin-op small cabinet type compressors were the dry type so >> at the worst you might (ironically) just get some condensation. These >> seem to pump up live rather than being ready to run when you get there >> like, in the old days. >> >> I would also imaging that any airline feeds taken from more >> traditional reservoir oil lubed / piston type jobbies would have oil >> and water traps on the clean air outlets? > >They still get moisture in the air though. > >Having worked in garages most of my life, you get used to emptying the >lines every morning, even with moisture traps fitted. Yep, that was the "just get some condensation" bit but that wouldn't generally hurt a computer as long as it wasn't loads and you didn't fire it up immediately. Cheers, T i m |