Thank you so much. I'm from USA, but I've been living abroad for 19 years. You have helped me polish up on SAE caliper measurements. You are a good teacher. Keep it up!
Thank you, very much. This was an excellent teaching video. Finding one to explain the metric aspect of the vernier caliper is easy, finding one that explains the inch side is quite another story and I would highly recommend this one.
I come back today after buying a NEW set of vernier calipers because I am tired of breaking my dial calipers! Thank you again for your worki and space aged white board ;)
When I was a mechanic 50 years ago. I bought. A very nears 😊caliper but didn’t have a clue. So I went to the machine shop down the street and asked the old guy how to read it. Thankfully he was very patient and he first taught me fraction math and finally how to read it. I was very happy when the dial calipers came out.
Thank you so much. Am a Metric guy and rarely use imperial but with your excellent tutorial I am confident to tackle inches. Thanks and I am now subscribed to your channel hope to see more content.
Yes, it is. The math of decimal inches from 0.1-0.01" is on my dial caliper video. On my micrometer video the range is 0.1-0.0001". Manufacturers tend to make sliding instruments only accurate to 0.1 units. The dial caliper has gears inside for better accuracy, and micrometers have fine-pitched screw thread mechanisms for even better accuracy. Enjoy discovery.
I have got so used to metric after 50 yrs that I was struggling to remember how to add the 128-ths for an order. So many lazy ones just use digital inches (why mix systems?). This was both helpful and easy to follow, thanks.
great explanation and great example why Imperial needs to be abolished its a joke lmao, guy using metric measured all his bearings went home had a diner and is having a beer, while imperial guy still stuck on adjusting fractions to common denominator LOL
Thanks for the video, a nice refresher for my old brain, question, you said @16:25 "they're not perfectly aligned" If we was turning down a shaft on a lathe for that bearing to run on what would we use to get the exact measurement?
Micrometers lessen this misalignment problem by 10x, but that's about the end of hand-held solutions. Light (laser or visible) in some hi-tech bench devices or computerized robot arms, ... some fancy stuff for ultimate exactness. Calipers do ok for some manufacturing.
Really great explanation. Very clear. Would have been good to include some practical advice when measuring with a caliper. So for instance, if you're cutting wood then 81/128 is basically 5/8" whereas if you're a machinist then 81/138 = 0.633". Accuracy is very much in function of the process.
Correct me if I'm wrong. I know this vid is really old, but perhaps someone here can confirm my theory. This is pertaining to the "ID" of the bearing. being a hair over the 1/6th mark and behind the nearest 1/128th, Wouldn't it be more accurate to say the answer is 1-1/266th? So essentially you're dividing the verneir scale in half. Edit: It looks like the "8" on the sliding scale *is* lined up. Therefore the measurement would be 1-23/128"?
@@apprenticemath Thanks for that. Would you happen to know an average standard tolerances for press fit items such as pulleys and or bearings? The best I could come up with was 1/1000th" difference between inner / outer. Seems kinda loose to me.
Shouldn't we used LCD? 2/16 right? If we uses LCD it will be 16/128. (LCD. 128÷16=8) So 2(8)/128 Or 16/128. Your answer is correct but some of my friends were unable to understand if how did you derive in that answer. So for those who haven't understand it too we uses LCD to derive for that answer.
And that is why i have a vernier caliper that measures in thousandths (.001). Much easier to deal with powers of 10 than fractions of 1/128's. Great video though.
Holy cow. I got some unmarked calipers from a local hardware store. "import" ect Would I be correct in assuming if the number of hash marks/hair lines per inch on each scale is the same as these in the presentation, that I am dealing with 1/128 calipers? (This math is a mystery to me now) Intution says "yes" If so, these pieces of crap are acurate to .0005" with "rounding down" That is amazing!
If marked the same way, then 1/128" it is, which = 0.0078", or 0.005" rounded down or 0.01" rounded up. Concept was invented in 1631 by French mathematician Pierre Vernier.
jst try the p+(q x least count) where; p= main scale reading just before the zero mark of the vernier scale q= nth vernier division that coincides with the main scale division Least count = 1/128 Therefore; 3 2/16+(3x1/128) = 3.148 or 3 19/128 This is just another way solving for the actual reading and for me I find it more easy because I just need to know the working formula.
Didn't anyone else notice the audio in this video? Seems to have faded in and out as he goes close and further away from the mike. Besides that, good video.
Guess I got a mismarked scale on my caliper. Not only do the 0 and 8 line up, but so do the 123456 and 7. There is no offset on them. Nor on the metric side either. Same thing. They all lineup with no offset. Lol. Its okay. I just need to measure drill sizes the the nearest 32. It will get me close enough. They are $1.99 plastic calipers anyway. They are well made and marked honestly. Just there is no offset on the vernier itself. Its kinda funny the more I think about it.
Magnus Klahr We`ve got it covered here, th-cam.com/video/5VG8-nlhA8k/w-d-xo.html and here: th-cam.com/video/Fi4_bhG5Utg/w-d-xo.html but I don`t know why it takes forever for the US to get metric, or other things.
Digital calipers are great. They are. But I still use my Brown and Sharpe 570's. (both 13" and 25") Both are easily 60 plus years old and the quality of them are just incredible. (the wooden boxes alone are gorgeous!) Most modern cheap Harbor Freight calipers are....good enough....I guess. Depending on what you what from them. But if you go with digital, go with Mitutoyo not Tool Shop. Actually, spend the money and buy much older Brown and Sharpe and Starrett. You'll never regret it. Learn to read the old manual tools. Not the modern Chinese crap.
You did a good job explaining how to read the 1/128th scale on the caliper. I wish you taugh the 1/1000th scale. Obvioulsy its more accurate than the 1/128th scale.
Thank you so much. I'm from USA, but I've been living abroad for 19 years. You have helped me polish up on SAE caliper measurements. You are a good teacher. Keep it up!
Thx, mate
هلق٧
Thank you, very much.
This was an excellent teaching video.
Finding one to explain the metric aspect of the vernier caliper is easy, finding one that explains the inch side is quite another story and I would highly recommend this one.
I come back today after buying a NEW set of vernier calipers because I am tired of breaking my dial calipers!
Thank you again for your worki and space aged white board ;)
When I was a mechanic 50 years ago. I bought. A very nears 😊caliper but didn’t have a clue. So I went to the machine shop down the street and asked the old guy how to read it. Thankfully he was very patient and he first taught me fraction math and finally how to read it. I was very happy when the dial calipers came out.
"Total easiness" comparing with measurement in millimeters! Without paper and pen, seems to be difficult to read in inch. Thank you!
Thanks for taking the time to explain in such detail, great video.
So far the best demonstration on the subject!
Thank you so much.
Am a Metric guy and rarely use imperial but with your excellent tutorial I am confident to tackle inches.
Thanks and I am now subscribed to your channel hope to see more content.
Yes, it is. The math of decimal inches from 0.1-0.01" is on my dial caliper video. On my micrometer video the range is 0.1-0.0001". Manufacturers tend to make sliding instruments only accurate to 0.1 units. The dial caliper has gears inside for better accuracy, and micrometers have fine-pitched screw thread mechanisms for even better accuracy. Enjoy discovery.
I have got so used to metric after 50 yrs that I was struggling to remember how to add the 128-ths for an order. So many lazy ones just use digital inches (why mix systems?). This was both helpful and easy to follow, thanks.
Excellent class. This is how I will teach it. Thank you for sharing.
Excellent video. Very informative. Thank you.
thank you i have 2 calipers and i never understood how to use them. knowledge is power.
Thank you good sir for the video. Now i realized how simple vernier caliper is. Cheers from the Philippines
What a great instructor. And a dumpster diver too! Perfection.
Good video.
I can read metric and imperial now, main scale along with the vernier sliding scale.
Excellent!
Great explain sir.thank you ..
Thanks, I'll check those teachings in the playlist.
great explanation and great example why Imperial needs to be abolished its a joke lmao, guy using metric measured all his bearings went home had a diner and is having a beer, while imperial guy still stuck on adjusting fractions to common denominator LOL
Great video!
Thank you, knowledge is truly power.
Excellent tutorial
very nice, very precise!
Excellent lecture. You are a talented teacher.
Easily the best lesson vernier caliper use on the web.
Thanks for watching
thanks for the explanation i understood it better here than in class when the profe was explaining
Great video, never had to use one with 1/128. Very informative
Thank you so much for this! Excellent work!
You're very welcome!
Thank you very much I have really benefited.
you are a born teacher. thank you so much
Thanks a lot.an excellent explanation I must say.
Great video, thanks!
great video
So HELLAA NIICEE!! You help a lot in my exam❤️
thank you good sir!!
Thank you very much nice and informative video measuring in inches.
Thank you easy explanation.
Thank you so much. This video is excellent for me.
Thanks, awesome video.
sir---thank you, thank you again!!
Thanks for watching
Thank you very much to up load.
Nice Video
great vids, i learned a lot from it. reading in mm & inches. thank you for the tips. what about in cm? do you have any vid on this.
Nothing on cm, not used in trades/tech/eng.
Thank you very much. Keep uploading videos, it is helping very much.
Thank you, I will
Excellent write up. Thanks a ton A++
Thanks for watching!
Thanks.! I'm learning a lot. I find your videos helpful. I'm going to into mechanical engineering.
Good stuff. Ever fixed anything?
How was your studies now?
Nice explanation, thank you!
Glad it was helpful!
thanks alot i really appreciate
i m new in canada and i need this ! so thx and big thx
Thank you very much for the Video. It Helps me a lot.
Well Explained.
Good video. Thanks.
Great video...thank you
Glad you enjoyed it
finally NOW i can read the inch side of the caliper and NOW i am very sure that i will NEVER do it.
Thank you!
I need it like this thanks.!
Excellent, thanks a lot :)
Thank you very much very helpful
Thanks for the video, a nice refresher for my old brain,
question, you said @16:25 "they're not perfectly aligned" If we was turning down a shaft on a lathe for that bearing to run on what would we use to get the exact measurement?
Micrometers lessen this misalignment problem by 10x, but that's about the end of hand-held solutions. Light (laser or visible) in some hi-tech bench devices or computerized robot arms, ... some fancy stuff for ultimate exactness. Calipers do ok for some manufacturing.
Thanks a lot
good job
Thank you Sir,👍
Really Really nice....
thank you sir
Thanks!
thank you
thank you sir ! You really helped me out.
Thanks alot sir😍
128 divided by 16 = 8, so you can multiply the numerator by 8 to get the number of 128ths. Seems easier like that.
That is how this magnificent teacher described it.
Very thorough. I wish my math and physics teachers in school had taught me in this manner.
Same here with my teachers, that`s how this channel kinda started.
Thanks for watching.
Really great explanation. Very clear. Would have been good to include some practical advice when measuring with a caliper. So for instance, if you're cutting wood then 81/128 is basically 5/8" whereas if you're a machinist then 81/138 = 0.633". Accuracy is very much in function of the process.
NICE
Correct me if I'm wrong. I know this vid is really old, but perhaps someone here can confirm my theory.
This is pertaining to the "ID" of the bearing.
being a hair over the 1/6th mark and behind the nearest 1/128th, Wouldn't it be more accurate to say the answer is 1-1/266th?
So essentially you're dividing the verneir scale in half.
Edit: It looks like the "8" on the sliding scale *is* lined up. Therefore the measurement would be 1-23/128"?
Readings could be rounded to nearest 1/128 or 1/256 but ultimately finer measurements needed a different approach to measuring length - micrometers.
@@apprenticemath Thanks for that.
Would you happen to know an average standard tolerances for press fit items such as pulleys and or bearings?
The best I could come up with was 1/1000th" difference between inner / outer.
Seems kinda loose to me.
Shouldn't we used LCD? 2/16 right? If we uses LCD it will be 16/128. (LCD. 128÷16=8) So 2(8)/128 Or 16/128. Your answer is correct but some of my friends were unable to understand if how did you derive in that answer. So for those who haven't understand it too we uses LCD to derive for that answer.
By reducing to lowest terms mentally, bypassing written variants of LCD
Thanks for watching
there is no upper scale in my caliper..now how to measure inner..
muito bom!
in millimeters all clear external dimension of 80 mm of Japan and the bearing can probably Toyo
Correct, milimeter scale much more frendly and simple.
And that is why i have a vernier caliper that measures in thousandths (.001). Much easier to deal with powers of 10 than fractions of 1/128's. Great video though.
Yeah, but fractions are a lot more fun!
Holy cow. I got some unmarked calipers from a local hardware store. "import" ect
Would I be correct in assuming if the number of hash marks/hair lines per inch on each scale is the same as these in the presentation, that I am dealing with 1/128 calipers? (This math is a mystery to me now)
Intution says "yes"
If so, these pieces of crap are acurate to .0005" with "rounding down"
That is amazing!
If marked the same way, then 1/128" it is, which = 0.0078", or 0.005" rounded down or 0.01" rounded up.
Concept was invented in 1631 by French mathematician Pierre Vernier.
jst try the p+(q x least count)
where;
p= main scale reading just before the zero mark of the vernier scale
q= nth vernier division that coincides with the main scale division
Least count = 1/128
Therefore;
3 2/16+(3x1/128) = 3.148 or 3 19/128
This is just another way solving for the actual reading and for me I find it more easy because I just need to know the working formula.
This is waaay easier to do in metric. Time to join the 21st century America!
Sir can you elaborate how you convert 2/16 to 16/128 tnx
2/16 = 4/32 = 8/64 = 16/128
- sorry about the long wait -
Didn't anyone else notice the audio in this video? Seems to have faded in and out as he goes close and further away from the mike. Besides that, good video.
thank you bat i think millimeters are more convenient
Voice sounds like Van Damme.
Guess I got a mismarked scale on my caliper. Not only do the 0 and 8 line up, but so do the 123456 and 7. There is no offset on them. Nor on the metric side either. Same thing. They all lineup with no offset. Lol. Its okay. I just need to measure drill sizes the the nearest 32. It will get me close enough. They are $1.99 plastic calipers anyway. They are well made and marked honestly. Just there is no offset on the vernier itself. Its kinda funny the more I think about it.
Yeah that offset is key to it all
Imperial bearing dimension chart
❤
Why not mm? ;)
Magnus Klahr We`ve got it covered here, th-cam.com/video/5VG8-nlhA8k/w-d-xo.html
and here: th-cam.com/video/Fi4_bhG5Utg/w-d-xo.html
but I don`t know why it takes forever for the US to get metric, or other things.
4 inches, 3 shillings, 6 pence and a groat....
im buying a digital one.
imuteu Just watch for scratches and melting. Here is my favourite: th-cam.com/video/HjD63mWkd9M/w-d-xo.html
Digital calipers are great. They are. But I still use my Brown and Sharpe 570's. (both 13" and 25") Both are easily 60 plus years old and the quality of them are just incredible. (the wooden boxes alone are gorgeous!) Most modern cheap Harbor Freight calipers are....good enough....I guess. Depending on what you what from them. But if you go with digital, go with Mitutoyo not Tool Shop. Actually, spend the money and buy much older Brown and Sharpe and Starrett. You'll never regret it. Learn to read the old manual tools. Not the modern Chinese crap.
How it became 16/128?
Simple math conversion
👍
You did a good job explaining how to read the 1/128th scale on the caliper. I wish you taugh the 1/1000th scale. Obvioulsy its more accurate than the 1/128th scale.
I CANNOT believe it took almost 13 minutes to explain that measurement was 3 19/128ths inches!
Teaching so students understand does take awhile.
That marker has a squeaking sound
I have already my digital one.
🌟🌟🌟🌟🌟👍
If it was metric we could see 49.25mm
Probably right, I also have a Metric full version
GET A NEW PEN WITH INK IN IT
Before you can do this you will need to know the basics.
What were u doing in the dumpster 🧀
Er ... math supplies ...