Thanks for sharing. I learnt imperial measurements as a lad, but Australia changed to metric when I was young and I forgot how to read a vernier in inches. I can't believe so many Americans persist with imperial measurement. Metric is so much easier to work with and to convert between measurements like area, volume, length, etc.
You are absolutely right. Since I studied medicine which is based on science, I became familiar with metric measurements and centigrade for temperature... But I still have to use imperial as well so it can be a bummer lol.
It’s not like Americans don’t know how to use metric. Most of us use both. I use metric when doing anything techy or scientific and use imperial for everyday things like temperature. Gallons of milk/gas. Driving at 60mph etc.
As an American, I can completely agree that the imperial system is a complete mess lol. I try to use metric when possible for everything except temperature (specifically for weather and cooking)/gallons/and driving distance. The simplicity to precision ratio is so much better in metric (plus no fraction to decimal conversions 😅)
You saved my cheek meat man thanks so much, my teacher isn't the best at explaining this subject in my metrology class. You just saved my grade and my spot in college.
As a european trying to understand the imperial side of my calipers this is as confusing as it gets. The video is probably good but my calipers are in fractions so the vernier scale says 1/128" and numbers from 1-8
These videos need to take into consideration of teaching the dumbest people possible like me. I got stumped immediatley at the first demonstration , the .55" part. What the heck is a .55? What does it mean, why is two 5's written that way together? I need enlightenment on this decimal shyt. Every detail needs breaking down for dummies like me.
Just use the same technique. The marks on the inner scale represent 1/16 of an inch, so firstly you look how many of those marks have been passed, then multiply by 8 to get 128ths. Finally you look at which mark on the outer scale lines up perfectly and add on that number of 128ths; between 1 and 7. The case shown in the video calipers is the exception to this method: as both the 0 and the 8 line up perfectly, we don't need to add any 128ths and in fact we don't need 128 as our denominator in the fraction at all. The measurement is just 9/16 of an inch. Or to look at it in a more pedantic way- the scale had gone past 8 of the 16th inch hash marks, to which fraction (8/16) we could have added 8/128; i.e one more 16th; making 9/16 an inch. I hope this helps. I have never used calipers, I just inferred this from the video and hoped I was right. :)
@@Amethyst_Friend This is the first explanation that finally explained this in the detail it needs to be explained lol. My professor tried for over an hour and couldn’t get even one of use to make an accurate measurement
The method most machinists use is to read and count everything in thousandths. So instead of "point five + two times point zero two five plus point zero point one five..." Just read "five hundred fifty thousandths plus 15 thousandths." It means just adding two numbers with the same units as opposed to having to write down three numbers using different decimal places plus a multiplication.
@@MitutoyoAmericaCurrently I'm a engineering student in mechanical. Am I eligible to register? I need in-depth metrology knowledge beyond the course.Is there any offering from your organization?
wouldn't this example represent .5" plus 2 graduations which would represent .02" each adding up to .04", plus the initial .5", adding up to .54" before adding the 15 thousands? as your not certainly sure the line crosses the half way point between .5 and .6 to represent .55
On inch calipers like this one, the main scale is marked in 0.025 inch intervals and is read directly by finding the last graduation passed by the zero mark on the sliding jaw. The number of lines is not the same for all calipers, but on most current inch vernier calipers, you'll find 25 graduations. For a final graduation of 0.001 inches. Reading the caliper is a two-step process. First, look at the zero mark on the sliding scale and find the graduation that it last passed. In this example, it passed the 5 and then 2 more hash marks. 0.5 + (2 x 0.025”)= 0.55” To read the vernier scale, note how the lines on the scale match up with the lines on the main scale. The way that the scale is made, only one of these lines will match up correctly. In this case, the 15 matches up correctly. 5 x 0.001” = 0.015” The final reading is the sum of these two readings. 0.550”+0.015” = 0.565” Hope this helps!
why in the world are the inches divided into 1/10s marks instead of 1/16s? Are we mixing imperial and metric? I do not understand this.... I think the imperial system should be abolished from the face of the earth anyways, but then dividing inches into tenths is kids of maddening . What am I missing here?
Did you mean "Why 0.025"? If so, then on inch calipers like this one in the video, the main scale is marked in 0.025 inch intervals and is read directly by finding the last graduation passed by the zero mark on the sliding jaw. The number of lines is not the same for all calipers, but on most current inch vernier calipers, you'll find 25 graduations. For a final graduation of 0.001 inches. Reading the caliper is a two-step process. First you will need to look at the zero mark on the sliding scale and find the graduation that it last passed. So, in this example, it passed the 5 and then 2 more hash marks. 0.5 + (2 x 0.025”)= 0.55” To read the vernier scale, note how the lines on the scale match up with the lines on the main scale. The way that the scale is made, only one of these lines will match up correctly. In this case, the 15 matches up correctly. 5 x 0.001” = 0.015” The final reading is the sum of these two readings. 0.550”+0.015” = 0.565” We hope this helps you out and answers your question!
