MACHINE SHOP TIPS #22 Micrometer Quiz Part 2 tubalcain
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- เผยแพร่เมื่อ 1 ต.ค. 2024
- This is part 2 of a 2 part video on the micometer. Tubalcain shows the many different types & styles of micrometer calipers. This part has a 20 question QUIZ on reading the micrometer. The answers are at the end of the video.
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I salute you, sir. Your obvious love of teaching really shines in this video. You are really doing a service to the world, passing along this information for others to carry on. What a great teacher you are.
They say you never forget a good teacher. In my middle age now, I have another name to add to my list - many thanks
THANKS YOU VERY MUCH
I would challenge your answer to question 10. You said the correct answer is 2.715. However, the 15 has not passed the read line, so I say 2.714+. If we had a Vernier micrometer on this measurement, it would most likely be between 2.7147 and 2.7149. Do you agree with me? If not, please explain it to me. Thanks!
I'm not a machinist by any means but I did learn plenty and I wanted to thank you for taking the time to explain it so thoroughly and giving lots of examples.
THANK You. 1968 is the year I started teaching.
@w4kwd Thanks!!
I am from India, even though we use "Millimeters" and not inches, your video was very helpful for me. I could understand every bit, I wish we had shop teachers like you in our training center. Thank you Very much, Sir.
I got a good laugh out of your post. Yes, unfortunately that's pretty much the way my whole teaching career has been-casting pearls before the swine. TH-cam is not such a reluctant audiance.
My answers are correct. My explanation of the rods was unclear. I have added notes in the video explaining the rods I am using. THANKS.
can you tell me how tight i should go , i mean on some pieces i can get different readings but
a micrometer has a tremendous mechanical advantage so its easy to smash into the work, any tips on torque ?
Very good tutorial and quiz, thank you Mr. Pete!
@cougarman07470 No-do not file it. What is the brand of the mike?
I got them all right LOL.
I have a Wards/Logan lathe, was Glad to hear you thought they were pretty good! It is a 84 TLC 2136, Don't know why but I was looking for a small Atlas and found this, Paid $500.00 for it, it came with a lot of tooling. The PO was a machinist and this was his "toy" at home.
I don't have a QCGB but have all the gears. No Automatic Apron either, sort of wish it did.
It only has the 1/2 nut for feeding,no clutch. I'm still lucky to have found it I think.
!!!!!!!
+mrpete222 i thought u said u have to add .2 to questions 16-18 like he said in the first video
Ok, I was subtracting 12 from 50 and I should have been adding 12 to 25. Very nice video. Thanks for the fun.
i thought he said u have to add .2 to questions 16-18 like he said in the first video
Give us a proper test bud
0.040" 0.105" 0153" 0.223" 0.431" 1.630" 1.091" 1.180" 2.551" 2.715" 3.376" 0.360"0.503" 0.875" 1.750" 0.312" 0.437" 0.625"2.125" & 3.312" (reckon not bad this time of night eh'??)
What the heck does that mean!!!!!!!!!!!!!!
Sir, I have been watching your videos over several days now and you have taught me more than my high school metal shop teacher did 20 years ago. I wish I had been a student of your's then, but I am thankful to have you now. You are inspiring and an excellent teacher. I thank you.
Enjoyed the quiz which I scored an 80 on, making the mistake of reading 11, 12, and 13 backwards. Thanks!
Only got No18 wrong, somehow didn't notice the 25 thou, doh! Not bad considering I've never held a micrometer and was schooled in Metric.
I missed 5 & 9 ☹️.
21-Apr-2021 I am just taking the test and I am hoping Mrpete is not being critical on the measurements because some of them are showing tenths.
I love videos like this, thank you for doing this.
Glad you like them!
Well Mr. Pete, spent time in the shop repairing a 0-1in and 2-3in mic's and must say these had the smallest set screws I have dealt with beside my eye glasses. Anyway back in here at 8:30pm going over the video to see where I missed reading some of the 20 questions,,,,maybe good thing if I get my eyes examed soon (@@) ! Have a great summer with family, Bear & Sammie dw in TX
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A dial caliper, is easy. There easier than a micrometer.
1,2,3 = .100 .200 .300 then you add whats on the dial to that.
What would a .225 be converted to fractional form, and .850 also converted to a fractional form i am new at this and i did good on your quiz i want to learn to convert the decimal forms into fractions please help thank you, Blessings to you this really helped me a lot.
Of interest I just found a Starrett Cat friend gave me years ago he was a Starrett
salesman No.26 I think is says 1923? so I checked what I have a No.3 with
case (velvet) $11.25 and my No.436 with ratchet and lock $7.75 mine are still
perfect imagine that, but they probably earned $5.00 a weel/ sam
Thanks a great tune up I got six wrong all because I rely to much on a calculator,
that I dont have for this test if I did, Id get 100. PS when I went to school they were
not invented yet. Sam still counting on my fingers.
Great video and liked the quiz you did. But excuse my ignorance .., when the gauge changed to a 2 inch micrometer does that mean an inch is added automatically to the total sum?
Very healthful and enjoyable video. Thank you. No experience in machining you made it clear and straight forward.
dear mrpete222, im 16 years old and am a junior in school. i also go to ctc for machinery and wanted to let you know that we have done your test and yo have explained alot to me. my parents are divorced so i live with my grandparents witch have tools from there grandparents and i callect old tools. i have an 2"micrometer and a depth micrometer and i didnt even know what they were until today. thanks
+Joshua Moore Thanks for watching--glad I helped. You can practice read on your grandpas mike.
+mrpete222 may i have your number. i would like to know more about the company and the microwmeters i own
Brilliant !! . I just got a couple of mics today and thought to myself ''see if Mr Pete has any clues on how to read them properly'' Jackpot! couldn't have wished for a clearer tutorial. Scored 18/20 in the quiz first time through. Thank you
Excellent!
mrpete, thank you, I should have watched this sooner, I had an evaluation yesterday for a machine shop program, I didn't do well, and was denied. I am disappointed and feel I didn't get a fair shake. One thing I had to do was set a micrometer at the random numbers the instructor gave, after a 30 second lesson. I had a hard time. I had never used a micrometer before, and didn't know how to read it, and I didn't completely understand after the hasty introduction. It makes more sense now. I did ok on your quiz, but still got nine questions wrong.
Thank you so much for your videos. I've inherited a 1931 South Bend lathe from my Dad, but it's in pieces, so I have much to learn. This micrometer video educated me, and was fun as well. Thanks again for everything
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I missed 5 & 9 ☹️. I am a carpenter but watching shop videos because I want to learn as a useful hobby. My Dad taught me how to hold the mic 40 years ago. One time he showed me how to use the inside mic on the bore of an engine cylinder. At first I thought that I would never get it but I did not give up and when I finally got that TDC drag, that was a very good feeling. When I get a lathe and need to use his old mics I'll know how to adjust them because of your videos, if ever the need as he has passed on now. Thanks Mr. Pete. So long for now.
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Thank you sir, I've been a machinist for 5 years and I've always measured in millimeters. This video helped me a lot, I just subscribed to your channel :)
You are a Great Teacher !!! It took a couple rewinds of the Video But I got It
We make micrometers when we build Foucault testers for our telescope mirrors. It includes long thread engagement and lapping of the threads to get everything precise. But anybody can do it... the screw was one of the great inventions of 300 BC.
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I just recently started a new job on gear cutting at a machine shop, and the first thing management asked was if I knew how to read the micrometer. A very essential tool. Thank you, sir. You're a very good teacher. I have learned so much from your videos. Keep up the good work.
Nice lathe--that was a bargain.
My keyboard was messing up
God if I had you as a shop teacher, I could build the space shuttle in my basement.I had a great automotive shop teacher in high school, he repaired ships during WW2 after they were shot up in battle..yes he showed me how to weld to. Never forgot him.
I bet he was a great man
That was fun! Thank you! Did good until the "inside diameter" mics.. initially I read them backwards, but went back and realized my mistake.
Thanks
Amazing 👏 .but unfortunately in the college Teachers don't have a patience to teach like this. this is the basic mostly people dont know even i keep watching it .
Thank you, I am glad you like it
I got #4 and #7 wrong, this was great and the best way i have learned how to read micrometers, THANK YOU!!
I missed 5 & 9 ☹️.
Thank you sir I absolutely love this I wish I could have been a student in your class. Well even though I am enjoying your lessons now great job and thank you
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missed five out twenty 1/4 at video speed so it is C+, back with paused missed number 4 because I added to .025 instead to .000
I missed 5 & 9 ☹️.
Well I've been reading micrometers for over 50 years, and strangely enough I had to think carefully on some of these questions, mainly the internal and depth readings, a bit of a trial for this old man! very enjoyable, thank you.
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That was fun! After 13 years in the trade I never been so excited to take a quiz on reading mics. I never paused the vid. except to check the answers, and got them all correct. Phew!! I'd be ticked at myself if I got one wrong. I cant get over how clear that camera is. I wish I could see my tools that clear in person. Another Great video!! Thanks
I got 3 wrong, got mad and threw away my measurements before I checked the rest
@pepesempire CORRECT!
Thankyou Mr. Pete. I can now read a micrometer with confidence.
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I failed the test, so saved both videos and off the shop to get in some class time (@@) !!
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As a metric guy i think it is too complicated 😂
Imperial is a bit harder to get used to after using metric for 10 years
I like your quiz. In the real world, a goof up could have expensive consequences. Unfortunately I did not do as well as I should have, and got a "D".(I'll have to stay after class and help clean the shop)!
I went back and watched it again. The 2-3" ,and, the depth mic got me.
Thank you very much. I have gleaned an immeasuable amount of information from you. Best
I missed 5 & 9 ☹️.
Thank you for the video.
Can always go back to being a turner!!!!
.225 = 225/1000 = 9/40
.850 = .850/1000 = 17/20
.850/1 or 850/1000 I know you know but I just had to. I missed 5 & 9 ☹️. I took the test knowing I would get them all right. Just goes to remind us to be very careful.
thanks once again, a great instructional video.
i brought a jt slocomb out of retirement and re-calibrated it,
i'm gonna use the old mic again!
Thank you again. Very useful information. The first and last time I used a micrometer was 40 years ago at tech school.
I got the first 6 wrong by a factor of 10 and then gave up, imperial is a mind melter for us metric trained.
Great videos and a superb Teacher, thank you so much
Thanks
The answers to questions 19 and 20 at the end of this video are not correct. I'll explain, this particular mic reads from 1"-2". The correct reading of the mic in the picture would be 1" + the reading on the scale (.125") + the 2" for the added rod for a total of 3.125". The correct reading for question 20 would be 4.312", 1" + the reading on the scale(.312") + 3" for the added rod for a total of 4.312.
Excellent (both videos)!
It's a 1 inch micrometer, so it starts at 0.000. Each division on the sleeve/barrel is 25 (thousandths) and there is one showing -> 25. You can read 15 on the thimble which means 15 additional thousandths. Add these up: 000 + 025 + 015 = 040 (thousandths).
I watch your videos and suddenly I'm 15 again and remember watching sword fights with files, getting sprayed with oil someone put in the keyholes of lathe chucks, and seeing someone pee in the kalamazoo saw coolant because he was too lazy to go to the bathroom. I have to say that I have learned more from you then I ever did in my high school. Thanks so much for your time and Knowledge!
Thank you so so very much i have more to learn i was correct on the fraction part but forgot to reduce to lowest fraction i need to learn how to read a dial calipar, and still working on that i in fact was going to lowes or home depot to buy a calipar i need to finish the job appl and i should be good to go, thank you so much i love your video
You are a wealth of information, l really enjoy your videos. Did your Micrometer test and i got a some wrong. I will practice until I get 100%. Listening to you reminds me of my Father who was a mechanical engineer.
Thanks
I missed 5 & 9 ☹️.
thanks for the vids, i am a home self tought machinist so to speak and learned a great deal from your videos. theses helped me produce much better results in my shop and projects.
yes i did the quiz! one wrong!
Good demo. It doesn't get much clearer than this.
I tend to trust mechanical micrometers/calipers more than digital because they can't "lie" as long as the thread pitch is accurate. Capacitive sensors in digital models could be subject to moisture and other artifacts, so they seem (theoretically) prone to random errors. Maybe that's more speculation than fact.
I enjoyed learning this You are a Great Teacher !!!
I bought a Micrometer last night and there are 10 graduations between 0 and 1. is that .0001? I am not good at math.
Shawn Landers yes
Ty. I have learned so much from watching your videos.
Another great video, many thanks. I got the inside micrometer ones wrong because I assumed you needed to add the 0.200" to the reading so I learned something there. Keep them coming!
Never thought I'd ever be able to learn to read a mic, until now! Thanks SOOOO much for this video and test! I can add some mics to my dial caliper collection now. Passed with flying colors!
Cavemannspace Thanks for watching----glad it helped. 57,00 people have taken that test.
You are a great teacher. I must get ALL of our mechanics at work to watch these two videos and take the included quiz. I am an aircraft inspector, your teachings here are going to instantly clear the fog. Thank you.
S Thor Thanks for watching--spread the word
thank you!It is one your best videos you gave some people do not buying a micrometer and just practice just watching.It is a great practice,indeed.
Hi, have you ever used any of these kind of Indicating Micrometers? They show the measurement at different points based on a master.
th-cam.com/video/F1Ooj-CbuWE/w-d-xo.html
Never used one, but I’ve seen pictures
@@mrpete222 I happen to have one.. its just more convenient when you don't have to cranking the thimble in and out at different points of the same size,, just to find the tolerances on the work.
This comment is not directed at this video, exactly ... I'm an extreme novice, and find a great deal of help and understanding with detailing every little thing about operating machinery. Just wanted to say that. I operated a lathe once, in 8th grade, 40 years ago. I dream of doing more.
Thank you very much for watching, and maybe I can take you past the beginners stage
Thanks for all your videos Mr Pete! We really appreciate them! You have helped me as well as a lot of others, your a Great teacher. Thanks again!
Helpful. I am getting ready to go back to work at a machine shop and I haven't done it in a while so this really helped me to brush-up on reading a mic again. Great pace, very clear and precise presentation. I really enjoyed being able to quiz before walking into this again. Thank you for posting.
To give you a chance - I've had a few G & T's!! Here goes!!
Very informative, I have struggled to read micrometers for a long while, thanks to this video I mastered all 20 questions. Thank you so very much for this, I am definitely more confident than ever before, again , Thank You Sir
I missed 5 & 9 ☹️.
Can't help but be amazed at the lengths you go to provide knowledge to others.
That 20 question quiz was a glistening red cherry atop a "perfect cake"!.
Kudos (In the most literal sense of term)
Thanks. Very helpful!
More tests like this on other subjects really does reinforce the learning, what a brilliant idea. FixinThatUp T=up I think it refers to thumbs up.
Hi Mr. Pete, your videos are such a great resource! I'm curious when you would choose to use micrometers over digital calipers. Are they both equally accurate?
Nice video. I like the test.
What kind of system you use sir?. I'm confused 😮😮
I feel pretty good, I got everything right. . . . then again I work in a CNC shop.
You get an a for the day
I scored an %85. Then I went back and saw what I did wrong and now I'm embarrassed. I missed #1 since I forgot how to add for a second, #13 because I didn't notice the thimble was just covering the line so I put .493 instead of .503, and #15 was the worst mistake. I put 1.050 instead of 1.750 because I was reading the lines on the barrel, the numbers on the thimble, but didn't add in the numbers on the barrel. Thanks for the lesson!
I missed 5 & 9 ☹️.
7 out of 10 first test and 4 out of 10 second test total score11/20.
I just want to say thank you for the videos. I have been a blacksmith for about the last three years and I'm starting to get more into the machining side of things. Your videos have been a great help. Keep up the great work. -Kyle
I have watched many of your videos. This one was particularly good..
Please keep at it. I am a 70 yr old student.
Woo Hoo! 20 for 20. This was a great refresher. Thank you putting it together.
I have to admit I usually use a Mitutoyo digital 1 inch micrometer that reads to 100th's and a caliper for everything else. I have a 1 to 6 inch set of analog mics with a vernier scale for measuring larger sizes more accurately then with a caliper.
I missed 5 & 9 ☹️.
Great fun! I (almost) aced the quiz without pausing. Thanks Mr. Pete,
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I missed 5 & 9 ☹️.
very good, i missed only 17 and 18, having never used that type of mike. thanks.
I missed 5 & 9 ☹️.
This video helped a lot! Micrometers are no longer confusing to me, thank you so much Pete!
Very good I am an electro-mech tech. student, I will pass this on to my teacher.
Very helpfull video. Superb. Wish I had someone like you as a teacher
You do!