Micrometers
Micrometers
(OP)
Mitutoyo micrometers can come in ratching style and friction style knobs. What are the advantages and disavantages of each?
And just to add some fun to this post, do you prefer digital readouts or dial? What is your reason for your preference?
And just to add some fun to this post, do you prefer digital readouts or dial? What is your reason for your preference?





RE: Micrometers
Digital is OK for speed but I still prefer the "dial" (I assume you mean the thimble graduations) for peace of mind.
SW07-SP3
RE: Micrometers
RE: Micrometers
RE: Micrometers
I have no opinion of ratchet versus friction. You need to measure gauge blocks once in a while to get the feel right. The "feel" significantly affects the accuracy of a micrometer.
I prefer the vernier scale over the digital because it reduces the number of people willing to borrow it. :)
JHG
RE: Micrometers
I prefer the digital display because it removes a source of error, i.e. a person's estimate of the dial's position. A digital display is not open to interpretation.
Regards,
Cory
Please see FAQ731-376 for tips on how to make the best use of Eng-Tips Fora.
RE: Micrometers
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SW07-SP3
RE: Micrometers
don't care for ratchet or friction....It is a touchy feely thing.
Also prefer (insist for critical) the vernier versis digital.
RE: Micrometers
Thanks for the responses...
RE: Micrometers
RE: Micrometers
Mike Halloran
Pembroke Pines, FL, USA
RE: Micrometers
RE: Micrometers
RE: Micrometers
http://ww
Cheers
Harry
RE: Micrometers
If I use the ratchet kind, I use the three click method. I don't trust new mics till the results are checked.
Either will do and finesse is the key.
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RE: Micrometers
Why is a micrometer different?
RE: Micrometers
So... what's the most consistent?
I'm going to run with my prejudices here - I used to work n a metrology lab, and we used to wiggle the anvil /across/ the surface to be measured, to detect contact. I do the same with a mike, that is I feel the motion in the part, more than the mike, for small parts.
Cheers
Greg Locock
Please see FAQ731-376 for tips on how to make the best use of Eng-Tips.
RE: Micrometers
I will admit, to using my digital calipers for quick and dirty stuff...
"Is a torque wrench more reliable than doing it by feel alone?"
The obvious answer is "yes", but with a qualifier...some of us 'old guys' can get some pretty amazingly close numbers to some of these 'click' type wrenches (yes, I do use them but I still prefer a properly calibrated beam wrench).
Rod
RE: Micrometers
In the old days, when we had apprentiships, we didn't have ratshit (OOpps sorry - ratchet) micrometers. We had to learn to "feel" when it was right.
And so we are rapidly losing all the old skills, and we're becoming lazy and too reliant on "modern technology".
There are no appentiships now, and nobady learns their tables. Ask your son or daughter what 7 8's are!
RE: Micrometers
When I was young all cars needed to be double clutched, lights ran at 6V, seat belts were unheard of as were crumple zones, ABS, air bags and many of the things we now take for granted. Even starting a car was a skill knowing how to nurse the choke and pump the throttle. Driving was harder back then and you needed extra skills and if you got it wrong you were in greater danger.
Maybe some things are best “dumbed down”. I have still to be convinced that even the best craftsman can measure more accurately by feel.
RE: Micrometers
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Ah, a new "post question" standard. In case it wasn't understood, I prefer the other. Clears to you....twenty times over.
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Business Card http://mech.e.tripod.com
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Cycle Heaven.......www.tailofthedragon.com