I have one of their inside mikes and its very good

On 17 July 2024 at 19:57 JasonB Said:

Michael may also be worried about how a 6″ caliper can measure 0-200mm

although according to the opening post … it’s described as 6’ one !

MichaelG.

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Edit:  __ Don’t worry, Jason … that’s the last I have to say on the matter

I have a Dasqua digital 6″ caliper which cost about £35 and it compares well against my Mitutoyo’s and my Tesa at a much more affordable price. I have also bought one of their 8″ digital height gauges and recently one of their magnetic DTI stands for a Baty lever mechanical indicator. They all came from RDG which I have dealt with for years and trust. Chronos is also a good firm to deal with. Sad to say, my 6″ Mitutoyo digital calipers bought in 1989 are no longer reliable electrically and have had to be pensioned off.

As for the description ” digital vernier”, the seller is probably playing to the dumb end of the market who don’t know what a vernier is, but associate it with this type of instrument. I have two Mitutoyo parallex free vernier calipers, one 6″ and the other 5″, not listed any more.

I have a set of their 6″ ones, not the same model but find them very good. I have measured with them on a piece of freshly turned bar and then check with a micrometer and both agree that was on 1″, also on a 6″ flywheel and again both agree with each other.

I use them a lot to do quick measurement and if critical double check with a micrometer, even then I get a good cross measurement from both.

I am very pleased with mine

I have a 150mm Dasqua “Mechanist Grade Dial Caliper” (sic), with a mechanical dial instead of a vernier, and 0.02mm graduations on the dial.

I got fed up with batteries going flat, and this mechanical calliper seems OK for the price and is very useful for my 3D printing work. It seems to be mass produced – the end stop and depth strip retainer are not quite square, (but doesn’t matter), and I cannot comment on its fine accuracy for metalwork or its repeatability.

But for the money, I think it is decent enough. It might well be ‘Chinese’ in origin – hence the slightly odd translations. But useful as a jobbing calliper for medium precision measurements, that if dropped or stood on, would not make you cry !

I also bought a set of marking and measuring gauges from Dasqua, and they are pretty decent for the price – again almost certainly Chinese but all laser engraved  and CNC ground.

PS, someone mentioned RS. I have used RS for many many years for electronics,  but be warned they seem to have really hiked-up their prices in recent years and seem to be going for big corporate budgets. Farnell might be a better bet these days.

I have some Dasqua caliper and they are just fine. Their only failing is they gobble batteries even when switched off and locked. You’ll need a good supply of CR2032’s. I got fed up of mine being out of battery every time I just popped on the workshop to check something, so I bought some Mitutoyo ones that the batteries last for years so I’m told. Using both on gauge blocks consistently give the same reading so I would be completely happy with their accuracy, although for important measurements less than 25mm I tend to use a micrometer. Used Chronos many times, and have been completely satisfied with them as a supplier.

On 19 July 2024 at 18:22 John Gray 7 Said:

I have some Dasqua caliper and they are just fine. Their only failing is they gobble batteries even when switched off and locked. You’ll need a good supply of CR2032’s. I got fed up of mine being out of battery every time I just popped on the workshop to check something, so I bought some Mitutoyo ones that the batteries last for years so I’m told. …

I have a theory about caliper batteries.   Measuring the current drawn by digital calipers shows they consume low microamps, and should last for years.  Something is going on.  I suspect storing calipers in a cold British workshop prone to condensation causes this issue.  Inexpensive calipers aren’t sealed, and I think condensation forms on the cell, slowly discharging it.  A tad of workshop dirt in the air makes it worse.   I hypnotise that the cells in more expensive instruments last longer because they are protected from damp air.

Another factor may be putting the boot in!   My Lidl caliper, which I was willing to destroy if the test went wrong, revealed an ‘interesting’ design problem which is that it’s electronics malfunction as soon as the cell voltage drops slightly, even though there is still charge in the cell.  Possibly the electronics in more expensive instruments make full use of the cell, whilst cheap models give up prematurely.

Hard to prove without an elaborate experiment, but the cell life of cheap digital calipers might be extended by sealing the instrument inside a sealed plastic bag until needed.

Dave

There’s something different about the way the Mitutoyo ones work – you can leave them on for hours every day and the batteries still last for years – even allowing for them being truly off when off, that’s a far better battery life than the cheap ones (though interestingly, the Lidl ones are just as accurate).

I’ve got a 100mm Dasqua digtal caliper, handy size for my small lathe. Had it 8 years, on it’s second battery and I use it nearly every day. Silky smooth and pretty much matches my micrometer measurements every time.

Don’t know if they are the same now though. they seem to change the model every few years.