How To Use Vernier Calipers - Watch and Learn #59

hi this is mark from Long Island watch calm and welcome to another episode of watch and learn it's been a while since I released the last watch and learn generally this time of year I just don't have a lot of time in general to film and when I do film it's for promotional stuff things coming into the store new items thing's gonna be on sale obviously this is the busiest time of year but I didn't want to neglect watching 100% so today I'm going to do a quick video it's not so much on watches per se but it's on an item that I do sell in the store going to discuss briefly how to use vernier calipers and I'll show you what vernier calipers are if you don't know I think nowadays with a lot of people verniers have been supplanted by digital's and dial calipers but it's important in my opinion to know how verniers work with it you know you know they they're they date back you know many many years ago before digital's came out so I like to tell people you know you shouldn't should know how to use some of the old technology I think it's really cool alright so um what's not over and check out some of our new calipers so I want to go over discuss vernier calipers I sell two kinds and two kinds two brands of vernier calipers I sell marathon branded calipers these are them they're plastic I love plastic oh they're just marathon I only back up I'm sorry I saw I was saying I sell two and I sell another white a white pair that again inexpensive I dare I say cheap plastic calipers I sell both just because sometimes people want something this is a little bit of a nicer caliper than the white one but the white one is the one personally that I use but for my demonstration purposes I'm going to use the gray one because it provides the great color price a little more contrast for the camera so vernier calipers are very useful not just for watches you can use them dare I say or I hate to sound like a commercial but around the house you really can you have to measure anything under about six inches see there's six that goes up to her you know close to seven but your maximum is going to be six and change inches that you're going to measure but they are very accurate even though they're plastic now that's what I was saying before I prefer plastic for watches because no matter what you do you're never gonna scratch the case you know real good you know Japanese callipers German calipers they're hardened steel jaws if you even just Barrow their and they're sharp until razor blades if they're new if you barely touch the case of the watch you're going to Nick it so people do put you know cloth tape and stuff around the jaws and then obviously that provides protection so that's fine but you know why don't just use a pair of plastic calipers of course the downfall here is that while they can be used for a decent precision down to 0.05 millimeters you can see they are plastic so if you want to measure something and you know the harder you push you can kind of change the dimension with likes where as with steel calipers you cannot anyway so I said vernier and in case you don't know so this is now the watch one's going to start so as it slides there is a scale down here it goes from 0 to 0 here 0 to 9 then it goes back down to 0 and as well this is for the millimeter scale this is for the standard or inches scale these are the vernier scales they're a little bit different than the scales that are on the caliper themselves and you use these markings to measure increments finer than what is on the main scale sounds like a lot it really isn't but this is the way calipers were originally then I guess dials came out and then eventually obviously digital's came out which kind of like the courts revolution wristwatches you don't need to do much to be able to read a digital watch same thing with a digital caliper but that's why I discuss how to use these and how to measure things so the first thing that people I guess maybe don't fully understand is that this caliper can measure things let's see one two three four different methods so let's go over that and then we'll discuss how to read them so obviously most people go and stick stuff in between the jaws and they get a reading so that's one way to measure you put it between the if it's small you put it to the thin part of the jaws and if it's large like this you put it we're not looking for you know extreme accuracy you put it between the thick part of the jaws will read them in a minute lines my show you right now how to use them so that's one way this is called an exterior measurement I'm not an inspector I know there might be better terms for it but this is what I call them another thing you can do is interior measurements but this set of Jaws here you put it between the lugs and you pull and you can read off I think I'm doing I'm looking at the camera sorry you could read all off the distance between the lugs using an interior measure so interior measurement exterior measurement now there's two more and they're one of them's kind of hidden and I know a lot of people you know I think kind of gloss over them if you flip the caliper over the sliding jaw is stepped up a little bit so you can use the caliper to measure the distance between this surface that my finger is touching and this surface that the pencil is touching so between here and here as this slides now in wristwatches probably not the most useful measurement you probably don't need it all that much but where would this come in handy I'll show you exactly you have a something you need to measure and you cannot pick it up you can slide Oh see if I can do this on the camera you can slide this jaw here against the bottom of the table and then this jaw slides and then this part bottoms on here and then you can pick up the caliper we don't use a lock it because it's plastic and then and we can read you know five centimeters that is the thickness of the block or the depth and there's one more which is really used I would say four four screw holes or four depths of things that you can't get the caliper into there is a metal rod that slides out the bottom and again if I had something with a screw hole in it never mind I found something so let's say I wanted to measure obviously the different ways to measure things will say needed to measure the depth of the this interior portion you can put the caliper on top I'm going to turn around so you can see the rod right and then you push it down the rod goes down hits the table and then I can read again the measurement off the caliper it's I don't know three and a quarter centimeter or something I'm really not reading it so now let's go over how you actually read the caliper or the really important part the vernier scale so you saw me before I measured the diameter of the watch so let's do that so I measure the diameter and I read let me get a pointy stick so I'm gonna be using the millimeter scale so I read this line here is my initial measurement so it's 10 millimeters 11 12 this happens to be 13 millimeters on the nose because there's zero or just about on the nose because the zero lines up almost perfectly I for most measurements you can just interpolate like let's say I measured the case and it came out to be like that you could say okay it's like 13 and a half millimeters and again for what we're doing here measuring lugs and thicknesses and diameters that's fine I don't need any more accuracy than that but I can and that's where the vernier scale comes into play so let's let's set aside by the way that doesn't work or it might I don't know so I take that out unless you say I made I made up this fake measurement it looks like it's around 13 and a half so how do I figure out what this measurement actually is and that's what the vernier scale comes in handy I it's so cool and it's so easy what you do is you start looking at the hash marks down the line and you wait to see when a hash mark lines up exactly with the mark above it these three this one's a little bit to the left this one appears to be dead-on this one's a little bit to the right so it's this one that's a five so it's thirteen point five zero millimeters and I know it's millimeters and I know the resolution because it's it's written over here this will give me zero five millimeter accuracy it's not one point five five and you know this one a little bit different this one a little bit different this one appears to line up on the nose so let's do you know I was tooling around before and I think I was it the lugs I don't think was this at my Seiko I had sitting here every one second yeah it was my Seiko guys remember this one this was the one of the ones I did the water test on when the bubbles came out it's been sitting here it was pretty cool doesn't it it doesn't work it's got all sorts of obviously it deposits on it now but we can use it for lug measurements right so I'm going to stick it in there and I'm gonna take away the calipers and read and it looks like it's 20 actually if you look it's actually under 22 isn't it if I read where the zero is it looks like it's just shy of 22 so I'm gonna I'm just gonna assume it's going like 21.9 or something to come way down the line here and look at that there's 21.9 lines up perfectly 21.85 actually I think lines up even better so the lug width on this Seiko is twenty-one point eight five millimeters it's point one five millimeters it's it's nothing it's such a small amount that you know obviously for intents and purposes we call it twenty two but it really is 0.15 millimeters shy of 22 millimeters and all the cycles are you know just are different you know and that's tolerances of manufacturing tolerances of of everything and with the same process you know we can use this scale so we got one scale to scale three scale and four scale you read them all the same exact way and if I wanted to take the inch measurement I would do the same thing but guys the I like the metric system and engineering school we pretty much used solely the metric system I to start doing it with the quarters and 128th and stuff is it's just not intuitive but anyway so this has been marked from the long island watch comm showing you how to use old-school vernier calipers please like the video if you enjoyed it please subscribe to channel if you have not done so if you have any questions or comments please put them down below and I will be sure to address them as soon as I can thank you for watching bye bye

Channel: Long Island Watch

Views: 100,052

Rating: 4.7007957 out of 5

Keywords: how to use vernier claipers, what are vernier calipers, watch and learn, long island watch, /islandwatch

Id: NwW3UHvzcOc

Length: 10min 33sec (633 seconds)

Published: Sun Dec 30 2018