Fractional Caliper

The Wixey one has been about for a while, I have one of their angle gauges which is very useful.

More details of the wixey on this site

Jason

Chris

I've just had a look at Jason's link. Even that one with 'four times accuracy' or what ever it says is only to + or - 2 thou if you look at the pictured examples. Looking more closely at the FAQ section, this is exactly what they claim for it in the text. See below

Quote: - "Why aren't the fractions displayed all the time? The fractions work in a unique but highly accurate manner. The fractions will only display when the decimal reading is within + or - .002" of the fractions decimal equivalent. For example, if the display is reading .740" it will not display the 3/4" ( .750" equivalent) until after the readout passes .745". Internally the readout is actually measuring in .001" increments so that the 3/4" does not turn on until .748" and turns off again at .752" This gives your fraction readings a very high level of accuracy."

They do sell products for woodworkers though! Be great for that, but a bit rough for metalwork.

Steve (Sheffield)

I imagine that it is *really* funny if you move it. Jumping from 1/64 to

1/32 1/16 1/8 1/4 and 1/2 in a random order. That would drive me crazy and you would find that gadget in a dirty corner of my shop. Bent.

Nick

Hopefully not too random ! I do agree though that it's not something that would find any use in my workshop. I always convert fractional values to decimal when working, and the handy conversion table at the front of the Zeus booklet is there for a reason !

AWEM

Thanks for the link and the information, Jason and Steve. Although I don't think I have much use for a fractional display, I can imagine that it might be *very* useful to somebody like Howard, who runs College Engineering, who usually has one of the busiest stalls at the larger ME shows, selling stock metals. I have already e-mailed him with the Wixey link. --

Chris Edwards (in deepest Dorset) "....there *must* be an easier way!"

With a resolution of 1/64 you will get:

1/2 -> 33/64 -> 17/32 -> 35/64 -> 9/16 -> 37/64 -> 19/32 -> 39/64 -> 5/8 -> 41/64 -> 21/32 -> 43/64 -> 11/16 -> 45/64 -> 23/32 ... Not to forget the decimal numbers displayed in between.

To me, that looks random. But then, I'm not one of the inch-fraction. ;-)

Nick

but Nick, that is NOT random, it's a progression, were it to be random it would not go constantly in one direction !

AWEM

What I would like is a caliper that I could use for checking the nominal size of stock. So when I put a bit of bar in it, it would automatically say 3/4" if the bar was 0.750" and 19mm if the bar was 0.748" etc. (and get it right).

That would be handy

Mark Rand RTFM

My guess is that you will get it soon after you take delivery of your flying pig ;-)

Regards, Tony

I have some calipers that fell to bits. Does that make them fractional?

Regards, Tony

It sounds very useful for finding out the "nominal" dimension of stock items.

i.e. not "measurement", but "identification", if you seem what I mean.

BugBear