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From: Fast Freddy on 6 Aug 2010 02:43 who where wrote: > On Thu, 05 Aug 2010 20:03:55 +1000, Fast Freddy <fredff(a)zynuts.org> >> why would you bother? you can buy a digital vernier for $20 to $30 that >> would be far more accurate than this, having gone from this type to dial >> verniers to digitals, they just sit in the drawer now that I only use >> the digital version. > > You probably don't use your slide rule any more then ... never learned to use one, a couple of guys in high school did use them, but I did all my maths in longhand and sine and cosine tables, the electronic calculator only just started to appear, computers filled a room and used punch cards. the digital vernier is just so handy in the workshop I have three of them, and dial vernier along with a slide scale vernier, couple of micrometers and angle protractors all with slide scales, all have their uses, but its the digital verniers that I use several times a day and nearly every day.
From: Sylvia Else on 6 Aug 2010 04:29 On 6/08/2010 4:27 PM, Fast Freddy wrote: > Sylvia Else wrote: >> On 5/08/2010 8:03 PM, Fast Freddy wrote: > >> >> Well, one reason is that the digital ones require batteries that they >> use up even when turned off. Indeed, it appears the cheap Chinese ones >> may do this in less than a year. So if one wants something that's >> moderately accurate, for occasional use, the digital ones are not >> necessarily the best option. >> >> But I didn't actually set out to buy this. It was a cheap, and I >> thought I'd have a use for it some time. >> > > > I used to use one of these all the time, then I got a dial vernier, the > only downside to that was that swarf and filings would on occasions get > on the rack and make the pinion jump and would need to be reset, really > a pain around the lathes, > > the digitals are so easy to use, easy to wipe clean, displays in metric > and inch thous, one I have even show fractions of an inch, good for when > you pick up a drill where the markings have worn off. > > the new ones not only turn themselves off after a time, but they will > turn on as soon as you move the vernier. This article casts some light: http://www.fliptronics.com/tip0006.html Looks like many just turn the display off, which achieves little other than to avoid the unknowing owner worrying about battery life. Sylvia.
From: Noddy on 6 Aug 2010 05:44 "Sylvia Else" <sylvia(a)not.here.invalid> wrote in message news:8c1vf4F3opU1(a)mid.individual.net... > This article casts some light: > > http://www.fliptronics.com/tip0006.html > > Looks like many just turn the display off, which achieves little other > than to avoid the unknowing owner worrying about battery life. I've had a 20 buck Aldi digital vernier for around 12 months and it's still on it's original batteries. When they die, I'll happily shell out the 3 bucks for new ones. It ain't a big deal. -- Regards, Noddy.
From: jonz on 6 Aug 2010 06:33 On 8/4/2010 11:31 PM, Noddy wrote: > "Sylvia Else"<sylvia(a)not.here.invalid> wrote in message > news:8bt5i4FtuuU1(a)mid.individual.net... > >> http://members.optusnet.com.au/sylviae/T_vernier%20001.jpg > > It's cheap Chinese dual scale. It doesn't matter where the head is > positioned, as the reading will always be to the nearest millimetre or 16th > of an inch. > > A useful tool for measuring custard tarts accurately. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ how nany times do you need measuring ?? > > -- > Regards, > Noddy. > > -- jonz "Usenet is like a herd of performing elephants with diarrhea - massive, difficult to redirect, awe-inspiring, entertaining, and a source of mind - boggling amounts of excrement when you least expect it." - Gene Spafford,1992
From: D Walford on 6 Aug 2010 07:13
On 6/08/2010 6:29 PM, Sylvia Else wrote: > On 6/08/2010 4:27 PM, Fast Freddy wrote: >> Sylvia Else wrote: >>> On 5/08/2010 8:03 PM, Fast Freddy wrote: >> >>> >>> Well, one reason is that the digital ones require batteries that they >>> use up even when turned off. Indeed, it appears the cheap Chinese ones >>> may do this in less than a year. So if one wants something that's >>> moderately accurate, for occasional use, the digital ones are not >>> necessarily the best option. >>> >>> But I didn't actually set out to buy this. It was a cheap, and I >>> thought I'd have a use for it some time. >>> >> >> >> I used to use one of these all the time, then I got a dial vernier, the >> only downside to that was that swarf and filings would on occasions get >> on the rack and make the pinion jump and would need to be reset, really >> a pain around the lathes, >> >> the digitals are so easy to use, easy to wipe clean, displays in metric >> and inch thous, one I have even show fractions of an inch, good for when >> you pick up a drill where the markings have worn off. >> >> the new ones not only turn themselves off after a time, but they will >> turn on as soon as you move the vernier. > > This article casts some light: > > http://www.fliptronics.com/tip0006.html > > Looks like many just turn the display off, which achieves little other > than to avoid the unknowing owner worrying about battery life. I've got a Kinchrome digital vernier which is more than 5yrs old and its still using the original battery so battery life isn't a big issue. Daryl |