Calibration

[Heffalump]

I just thought I'd show off my gucci kit a little... a couple of DTIs came up for their annual calibration this morning, so I cracked out the Mitutoyo cerablock set

[Ramon Wilson]

So which one's out 'Heff' - the slip or the clock? 

Ramon 

[Jo]

I think it is best he sends me the clock and I will carry out a few experiments to find out

It might take a while as I would want to get it right

Jo

[Stuart]

Temp must be wrong ,not at a temperature required for good work

But with that amount of error they are totally unusable send them to me I do not work to that level  I could manage with them both


Stuart

[Heffalump]

Jo - I've got tonnes of the blooming things here! I still use a dial one in the machine shop though.. I also found a set of vernier calipers from the olden days, serial number not even in my calibration log anymore! They're mine now haha, much better than digitals

Ramon - The clock - tolerance is +/- 0.005 so it still passes.

[Heffalump]

lol stuart - temperature precisely 21 degrees in the cal shop (20 degrees +/- 2)

[Jo]

And how long does it take to stablise the clock temperature before calibration  ?

But a Swiss clock that only measures to 0.001mm The one I have for Sexy measures to 0.0001 (and better if you want to look see how far between those ticks it is sitting  ) I just wish my accuracy of my other machines was as good   

Tell you what: you can bring a few "spare ones" down to the MEM stand at the GMES show and we could generously conduct those tests for you I mentioned. I tend to agree that a dial is better than a digital but I am willing to be proven wrong  .

Jo

[Stuart]

Jo

But the calibration will be off when you get your hot mitts on them 

Note I did not use the S word as we all know young ladies just glow horses do the other


Take care
Stuart

[zeeprogrammer]

Heff...you've got a gold mine there. You've got something 'someone' wants and you can name some better terms than "we'll test it for you".
You like hot cross buns? A curry?  I wish I were in your shoes. All I can offer is an image of a geezer in a tu-tu...as handsome as he is.

[Heffalump]

Sorted out some digital calipers this afternoon, put a new 12 month sticker on. 0.00 accuracy across the full range - even the ones I use will read 0.01 out in places.