I have been using these for years, and in my line of work I have to be perfect. When doing the headspace on a firearm I am going to .001 as I only have at a max 3 thousandths of and inch between a firearm being safe and not safe. People lives are on the line when I have to measure something to that level of accuracy. I also never rely on just the digital readout as they have been known to drift or not read correctly and possible you could hit the reset or origin button resetting it back to zero making it incorrect, always double check with the readings on the handle. Store your micrometer(s) in their case(s) they come with when not in use, put them back in and close the cover and even put them back in the paper sleeve to insure if dropped they don’t fall out. I always keep a tight grip on mine when in use and so far they have not ever been dropped, not sure if I could ever trust them again if that ever to happen, someone’s life is worth more than 300.00 and would be better to replace them.
1)Is this the actual method on how to measure using a micrometer? 2)Using only the small knob until it is ticking? 3)What if I zero the datum and use the thumble first until it is tighten after that I use the small knob? Is my measurement valid? 4) I don't find any reference on Mitutoyo's manual that I should use the small knob. Thus, people are blaming the method and the measurement result seems to be dubious. 5)Do you reply the comment? How can i have the answer?
Hi. I'm not part of Mitutoyo, but I've been using their micrometers for a while now: 1. Although it goes way in to it (somewhat needlessly), this is technically the right way to use it. Although there is some subjectivity involved (using the same force with the thimble...), this seems to be the best most standard way to use the micrometer. 2. The small knob helps prevent over-applying pressure, which in my field of work definitely applies. I measure thin wires less than a mm thick that are made of copper, and such a soft metal can be deformed by even the smallest amount of exertion. The way he suggested is the technically applicable way of doing it, because since you're relying on the ratchet knob to apply the final pressure, it's as close to standard as possible. 3. So you apply pressure on the "normal" part of the handle first (until it fully closes), then apply pressure on the ratchet knob when it's already closed? That is technically incorrect, since the micrometer will retain the measurement as a result of the normal part of the handle. The ratcheting knob would be insignificant by that point. The suggested method is to use the normal part to get it as close to the final measurement as possible, then using the ratchet knob to tighten it until it clicks a few times (indicating it's as tight as possible). 4. You should use the knob. I learned how to use mine from my superior, so I never bothered to look through our manual. 5. This video seems more like a project some higher up told this poor guy to make. Now that he made the video, he or Mitutoyo don't need any reason to comment.
Let me check one specific thing about proper measurement by vernier calipers. Some time ago I met opinion, that when you use external jaws for measuring some objects (especially objects that have just very small contact points with jaws, for example some round-shaped details) - you must place such object in the central part of jaws, not in the bottom part, where jaws have milled out edges. This is supposedly important for the most precise measurement. I don't remember where I found this but remembered. Later I tried to find reconfirmation of this opinion: is it really true. But in the manuals and in yourube videos no specific confirmation I couldn't find. Some really put objects in the center of jaws with no explanations or remarks why. Other put object just in between the bottom ends of jaws. Could you please clarify?
Suggestions: Great camera prescience....but 1.) Slow down when talking 2.) Focus camera on micrometer 3.) Focus on micrometer as you talk and explain what your doing. Individuals don’t care as much if what your saying is “perfectly” read as much as if they get education from the video...Being relaxed and natural and just “talking” it through would be more productive-(just my opinion). {even if you stumbled due to being nervous, if this would be the case}, would be great! I realize the pay Check comes from Mitutoyo ...but maybe if they see the feed back they will let you re-do!!!
How do you measure paper? If I close the digital micrometer fully I get a measurement, let's say 0.079 for example; but if I loosen the micrometer somewhat, the paper is still held firmly by it and the measurement is now perhaps 0.095. So I measure by closing the micrometer and then backing it off to a point where the paper will slide just slightly with difficulty within the teeth of the micrometer. I take that as the measurement. Is that methodology correct? If not what is the correct method? Thanks very much, Mark
Only one problem with the paper method to clean a mic, it only works on a 0-1 mic its usless for all mic's as they don't closed down so why do companies countinue to do this? It dosen't work for my 1-2 mic or my 2-3 mic or any other mic's so stop this method and show one that works for all micorometers no matter what size.
You are correct that pinching paper between the anvil and spindle only works on the 0-1" micrometer, which is appropriate for the video demonstrating the use of a 0-1" micrometer. For other micrometers, those larger than 0-1" or speciality micrometers, a technician would need to clean each measuring face separately. Using denatured alcohol and a lint-free cloth would do the job.
@@MitutoyoAmerica Then as stated this should be covered in the video as you assume that only a 0 to 1 inch mic is ever going to be used. We use the denatured alcohol and lint-free cloth for all mic's when we teach calibration so as the tech's understand this is a method that works on all micrometers.
