I learned the basics in high school in the 1970's, nowadays kids don't even have shop class, what a crying shame. I'm a farmer and use what I learned daily. Thank you for putting up these videos.
Thanks for the video. I needed to refresh my memory. The last time I used a micrometer was 14 years ago in college & I sucked using it. I need to refresh my memory because I applied for a job as a press operator in a factory & it requires using a micrometer for measuring what dies I need to use for the press. I got more studying to do. Thanks for the video. I hope more videos become available so I can get this down to a science!
If you look at your 2nd last post you typed 2.265 rather than 2.625 looks like it was just a type-o. I think you have it! Yes the units are important, I'm in Canada and we work both in inches and millimeters...there is a huge difference between the two sizes. Good luck and thanks for wanting to learn.
My pleasure I'm glad you enjoy learning. I'm here if you need help, that's what I do. Funny I was just in Austin Tx a month ago. I hope you always learn something everyday! Bless you too.
@zombieatradies @zombieatradies If I understand you correctly the zero on the sleeve disappears when the barrel is screwed down. If this is the case the sleeve is not tight to the frame. Put your adjusting wrench in the hole in the sleeve and wiggle the sleeve back and forth putting pressure on the wrench towards the frame. You should notice the gap between the sleeve and frame closing. Anytime you manipulate a measuring tool it will require re-calibrating.
Thank you very much for the help i sure loved learning this it is so new to me, and i appreciate the patience you had with me and thank you so much for the help i know i can count on you for any other problem i have regarding this, I live in Pearland Tx. and i have always worked in manufacuring industry, and for some reason i love learning more than what i know , i know i can do this, Blessings to you.
There is a screw on the end of the ratchet stop, if you loosen it you can pull the thimble away from the frame (it is on at taper). Reposition the thimble, tighten the screw, and recalibrate. Good luck and thanks for your post.
I got that mic along with the lathe I got for nothing from a friend, I had my own mic so never used it and never really cared. But I just took a close look and found a small allen key un-opened in its plastic. I took off the friction stop and there is the adjustment. Maybe I'll try to take a video of it with my camera so others can have a video of the procedure.
got it thank you very much i love this video very helpful for being first time trying to read this i think i am doing great and i felt like a very quick learner thank you so much i will have more questions later thanks God bless you.
If there is no screw on the end is the thimble two parts? Can you unscrew half the thimble? I'm pretty sure the thimble has a taper that sits on the screw under the thimble. If you can get that to free up (usually pulling the thimble away from the frame) it can be repositioned with the zero on the thimble at the 9 o'clock position. Can you send me a picture?
There is no hole opposite the numbers on the sleeve? I have a couple of Central mics and I'm certain there is a hole. Try contacting the supplier (Google search) with the model number of the mic. If you give it to your kids you may spark the next generation of machinist! Good Luck.
Your first example is 3/10 the second is 7/8 Do you have a scientific calculator with an "abc" button? If so it will do the calculation for you. Assuming you do punch in .875 "abc" 1.000 =(enter). It should display your fraction. Now hit second function (may be a yellow arrow or a yellow 2nd) then hit "abc" (you may have to hit = again). This should convert it to a decimal. Repeating should make it a fraction again. Good luck with the job!
I have 2 starrett 1 inch micrometers one is similar to ours a #436 and a real old one # T230FL. Both were given to me , the old one was frozen up so I kept using penetrating oil until it would begin to move and over weeks finally was able to remove the thimble and clean the threads . It has a ratchet built into the spindle that does not protrude and was never to free it up. It works and I just turn the spindle just so it stops. It's a bit more difficult to read because the marks on the adjustable calibration part are right at the very edge of the thimble. I never got the adjustment wrench or 1 inch calibration spacer. It read 0 yet if I could adjust the collar one turn CCW I could see the marks better as I can on the newer one. If I turn it open just .006" I can see the marks better like the newer one. I don't know if it's possible to adjust it .006" by turning the adjustment collar one turn . I doubt if I had the tool I could turn the collar.
What a find! If it has sat in penetrating oil and loosened the thread up the sleeve should be able to adjust, you should be able to put a wrench in the hole in the back of the sleeve and rotate it to zero. Alternatively the thimble should come off the threaded spindle, this often happens by loosening the screw on the end of the thimble (or unscrewing a two piece thimble). Once the screw is removed pull on the thimble away from the frame, it is on a taper. Simply realign the thimble to align the two zeros and tighten the screw. Good luck!
I like how you explain the reading i would like to know how you convert the decimal into a fraction form, please this is the first time i do this and i would love to learn more, thanks a lot this was really helpful.
I have a question.... I have all my mics calibrated...althought I have one that the dadum is on the at 6 oclock to be zero and calibrated...is there a way to move the themble back to the side and be correct... I know how to move the dadum ...just not if I can move the themble ??
If the size is .500 for example and we know the micrometer can read to 1.000 inches the fraction would be .500/1.000 The lowest common denominator in this case is .500 So .500 goes into the numerator (or top) once and the denominator (or bottom) twice making the fraction 1/2. Check out the Kahn Academy web site, scroll down to fractions then click on converting decimals to fractions. Thanks for the post. Good Luck
This is on a mititoyo mic....no ratchet ... does have a small hole at the end....I didnt wanna force it on the standard using that hole...maybe thats the only way
Can you tell me how to convert ruler measurements into decimals, i had a little trouble doing that too, for example one of my measurements was 1 1/8 how do i convert it on to decimal and how is that read on the ruler i don't understand that part well i haven't learned it, can you help please.
Thanks, i am kind of getting the hang of this i applied for a job and the application required Decimal form and fractional form. i got a .300 so would the fraction be .300/1,000, the other one was .875 would that be .875/1,000
I recently bought a set of three micrometers off of Amazon and noticed that on the one inch micrometer it seems relatively easy to inadvertently turn past the initial reading stop point when the anvil points make contact. In other words, I zeroed in the micrometer using the included notch wrench but am dismayed to see if you apply any light tightening pressure the thimble will continue to rotate past zero due to whatever play is in the design. Is that normal or typical?
Can you tell me how to make calibration adjustments on an old J.T.Slocomb micrometer? Mine doesn't the little hole put the wrench into. When I crank the thimble almost all the way out there is a notch on the barrel. Does some type of little spanner wrench fit into that notch to turn the barrel?
machiningmoments Thanks for the reply, but I gave the micrometer to a friends son after using a set of feeler gauges revealed it was no more accurate, or capable of smaller measurement, than my vernier calipers. After closer examination I noticed it didn't have the extra sets of markings on the thimble and barrel enabling it to measure down to .0001. It was only capable of .001. Looks like I'll need to buy a better one like in your video.
Close, again the 2 is a whole number so the answer will be 2.xxx to get the decimal 5 divided by 8 = .625 so your answer is 2.625" in the decimal system.
You are going to catch on to this one really quick! 1 1/8 is a "mixed fraction"...1 is a whole number so its always 1 we need to figure how to make the 1/8 fraction into a decimal number so the answer is 1.xxx in order to get the .xxx divide the numerator by the denominator or 1 divided by 8 Ok, you tell me what the answer is as a decimal!
Although you can just start to see the second graduation it's not quite to the second graduation (2 X .025). So the answer is .200 + .025 + .020 = .245"
+Lau Huong This micrometer will measure from zero to 1 inch. The equivalent metric micrometer will measure from zero to 25 millimeters or 2.5 centimeters.
![ถามตรงๆ กับ อาจตุพร ทำไม ประเทศไทย ใครเป็นนายก ก็โดนด่า พอออกเเล้วคนคิดถึง!!?? l [Nickynachat]](http://i.ytimg.com/vi/3YFLMXxBGAs/mqdefault.jpg)
Thank you John for taking the time to leave a message. I always appreciate hearing what viewers think of these videos.
I learned the basics in high school in the 1970's, nowadays kids don't even have shop class, what a crying shame. I'm a farmer and use what I learned daily. Thank you for putting up these videos.
Thanks for the video. I needed to refresh my memory. The last time I used a micrometer was 14 years ago in college & I sucked using it. I need to refresh my memory because I applied for a job as a press operator in a factory & it requires using a micrometer for measuring what dies I need to use for the press. I got more studying to do. Thanks for the video. I hope more videos become available so I can get this down to a science!
Really good stuff for an old, (76yrs) rookie. Thank you
Well your not very far ahead of me! Glad you are still learning. Thanks for watching.
i watched both the metric and imperial how to's and you really cleared things up for me, much appreciated.
Glad it helped, it always nice to hear this helps people. Thanks for taking the time to leave a post!
I plan to buy a micrometer, and this video is actually helped me allot on how to use it properly. Thanks, great video.
If you look at your 2nd last post you typed 2.265 rather than 2.625 looks like it was just a type-o. I think you have it! Yes the units are important, I'm in Canada and we work both in inches and millimeters...there is a huge difference between the two sizes. Good luck and thanks for wanting to learn.
My pleasure I'm glad you enjoy learning. I'm here if you need help, that's what I do. Funny I was just in Austin Tx a month ago. I hope you always learn something everyday! Bless you too.
@zombieatradies @zombieatradies If I understand you correctly the zero on the sleeve disappears when the barrel is screwed down. If this is the case the sleeve is not tight to the frame. Put your adjusting wrench in the hole in the sleeve and wiggle the sleeve back and forth putting pressure on the wrench towards the frame. You should notice the gap between the sleeve and frame closing. Anytime you manipulate a measuring tool it will require re-calibrating.
Glad it helped, thanks for stopping by!
Thank you, I appreciate your comment. Good luck with your new micrometer.
Thank you very much for the help i sure loved learning this it is so new to me, and i appreciate the patience you had with me and thank you so much for the help i know i can count on you for any other problem i have regarding this, I live in Pearland Tx. and i have always worked in manufacuring industry, and for some reason i love learning more than what i know , i know i can do this, Blessings to you.
Thanks man. Just got my first set of non digital mics. I like how simple and maintainable they are.
I'm glad you found it helpful. Thanks for helping.
Hope it helps, thanks for letting me know and stopping by! Good luck!
I work at Starrett tools in Athol Ma. I habe been an inspecter of all micrometers we make from 6"-60" for the past 4 years. Cool video ..
That is high praise, thank you!
@@machiningmoments you are very welcome. I enjoyed your video i will watch more when i get home from work.
Thanks again
There is a screw on the end of the ratchet stop, if you loosen it you can pull the thimble away from the frame (it is on at taper). Reposition the thimble, tighten the screw, and recalibrate. Good luck and thanks for your post.
I got that mic along with the lathe I got for nothing from a friend, I had my own mic so never used it and never really cared. But I just took a close look and found a small allen key un-opened in its plastic. I took off the friction stop and there is the adjustment. Maybe I'll try to take a video of it with my camera so others can have a video of the procedure.
Finally someone that could explain those pesky inch micrometers to me. Thank you
+Soren Hansen Glad you found it helpful!
As with anything else it takes practice! What other videos would you like to see? Good luck with your new job and thanks for your post.
Glad you got it, yes I would say you are a very quick learner! Any help you need I'm here. Thanks for letting me know!
I'm glad it helped, I hope you did well! Thanks for your post!
Super awesome video! Very informational. I'm going to use this for training. Thanks for posting!
Glad to help, thanks for supporting this channel.
got it thank you very much i love this video very helpful for being first time trying to read this i think i am doing great and i felt like a very quick learner thank you so much i will have more questions later thanks God bless you.
Glad you liked it, thanks.
you saved my physics lab xam...thanks a lot....:)
If there is no screw on the end is the thimble two parts? Can you unscrew half the thimble? I'm pretty sure the thimble has a taper that sits on the screw under the thimble. If you can get that to free up (usually pulling the thimble away from the frame) it can be repositioned with the zero on the thimble at the 9 o'clock position. Can you send me a picture?
Good point, zeroing the vernier scale is important if the mic has one!
how do you calibrate the barrel up and down? Thank you for showing the side to side but mine you cant see the zero mark when closed all the way...
@ladiesman217ven My pleasure
thank you excellent tutorial
There is no hole opposite the numbers on the sleeve? I have a couple of Central mics and I'm certain there is a hole. Try contacting the supplier (Google search) with the model number of the mic. If you give it to your kids you may spark the next generation of machinist! Good Luck.
My pleasure, thanks for posting.
nice. very details... all information in one video
Your first example is 3/10 the second is 7/8 Do you have a scientific calculator with an "abc" button? If so it will do the calculation for you. Assuming you do punch in .875 "abc" 1.000 =(enter). It should display your fraction. Now hit second function (may be a yellow arrow or a yellow 2nd) then hit "abc" (you may have to hit = again). This should convert it to a decimal. Repeating should make it a fraction again. Good luck with the job!
I liked this video very explanatory, i would like to ask if you can show the fraction format also please thanks, God bless.
Very helpful video. Thx
I have 2 starrett 1 inch micrometers one is similar to ours a #436 and a real old one # T230FL. Both were given to me , the old one was frozen up so I kept using penetrating oil until it would begin to move and over weeks finally was able to remove the thimble and clean the threads . It has a ratchet built into the spindle that does not protrude and was never to free it up. It works and I just turn the spindle just so it stops. It's a bit more difficult to read because the marks on the adjustable calibration part are right at the very edge of the thimble. I never got the adjustment wrench or 1 inch calibration spacer. It read 0 yet if I could adjust the collar one turn CCW I could see the marks better as I can on the newer one. If I turn it open just .006" I can see the marks better like the newer one. I don't know if it's possible to adjust it .006" by turning the adjustment collar one turn . I doubt if I had the tool I could turn the collar.
What a find! If it has sat in penetrating oil and loosened the thread up the sleeve should be able to adjust, you should be able to put a wrench in the hole in the back of the sleeve and rotate it to zero. Alternatively the thimble should come off the threaded spindle, this often happens by loosening the screw on the end of the thimble (or unscrewing a two piece thimble). Once the screw is removed pull on the thimble away from the frame, it is on a taper. Simply realign the thimble to align the two zeros and tighten the screw. Good luck!
thanks for the info rusty on mics needed for job
Good Stuff!!
I like how you explain the reading i would like to know how you convert the decimal into a fraction form, please this is the first time i do this and i would love to learn more, thanks a lot this was really helpful.
Glad it helped, thanks for your post!
I have a question.... I have all my mics calibrated...althought I have one that the dadum is on the at 6 oclock to be zero and calibrated...is there a way to move the themble back to the side and be correct... I know how to move the dadum ...just not if I can move the themble ??
Glad it helped, thanks for your post.
this helped me a lot, thank you. Very accurate tutorial buddy, :3
Mon plaisir, je vous remercie pour l'affichage.
@cesim82 Glad it helped, thanks for the note.
I have a central mic that does not have the hole for a wrench, anyone know how I can calibrate it? Or do I just give it to my kids to play with?
If the size is .500 for example and we know the micrometer can read to 1.000 inches the fraction would be .500/1.000 The lowest common denominator in this case is .500 So .500 goes into the numerator (or top) once and the denominator (or bottom) twice making the fraction 1/2. Check out the Kahn Academy web site, scroll down to fractions then click on converting decimals to fractions. Thanks for the post.
Good Luck
This is on a mititoyo mic....no ratchet ... does have a small hole at the end....I didnt wanna force it on the standard using that hole...maybe thats the only way
Thanks mate finally got it clearly
+BBKMADNESS Glad it helped you!
thank you.
Can you tell me how to convert ruler measurements into decimals, i had a little trouble doing that too, for example one of my measurements was 1 1/8 how do i convert it on to decimal and how is that read on the ruler i don't understand that part well i haven't learned it, can you help please.
really well explained, thank you so much
Glad it helped, thanks for your comment.
Thanks, i am kind of getting the hang of this i applied for a job and the application required Decimal form and fractional form. i got a .300 so would the fraction be .300/1,000, the other one was .875 would that be .875/1,000
I recently bought a set of three micrometers off of Amazon and noticed that on the one inch micrometer it seems relatively easy to inadvertently turn past the initial reading stop point when the anvil points make contact. In other words, I zeroed in the micrometer using the included notch wrench but am dismayed to see if you apply any light tightening pressure the thimble will continue to rotate past zero due to whatever play is in the design. Is that normal or typical?
Hi John. Is the screw on the end of the thimble tight? What is the make of micrometer?
OOPs Im sorry that's what i was meant to put down, so it's important to write it the correcect way as 2.625" and not just 2.625
was very help full its been a long time i use one
Glad it was helpful, thanks for your note.
Can you tell me how to make calibration adjustments on an old J.T.Slocomb micrometer? Mine doesn't the little hole put the wrench into. When I crank the thimble almost all the way out there is a notch on the barrel. Does some type of little spanner wrench fit into that notch to turn the barrel?
John Ratko I'm not familiar with that make. can you send a picture?
machiningmoments Thanks for the reply, but I gave the micrometer to a friends son after using a set of feeler gauges revealed it was no more accurate, or capable of smaller measurement, than my vernier calipers. After closer examination I noticed it didn't have the extra sets of markings on the thimble and barrel enabling it to measure down to .0001. It was only capable of .001. Looks like I'll need to buy a better one like in your video.
yup, lil spanner wrench, looks like... ecx.images-amazon.com/images/I/71fTcn4sVfL._SX522_.jpg
CRAP! I forgot to troll. I'm slipping.
Close, again the 2 is a whole number so the answer will be 2.xxx to get the decimal 5 divided by 8 = .625 so your answer is 2.625" in the decimal system.
You forgot the .0005.
@zombieatradies (Ran out of character) Please let me know if this doesn't solve your problem.
You are going to catch on to this one really quick! 1 1/8 is a "mixed fraction"...1 is a whole number so its always 1 we need to figure how to make the 1/8 fraction into a decimal number so the answer is 1.xxx in order to get the .xxx divide the numerator by the denominator or 1 divided by 8
Ok, you tell me what the answer is as a decimal!
Is it 1.008 or 1.08
The mic was calibrated prior to measurement.
How is maximum reading of micrometer?5 cm?
This is for a bit more advanced in the calibration but when I cal a mic I will also zero the vernier scale.
Problem is it's akward to read the mic..I want it to be zero right in front of me by the lock like all mics are except for this one !!
Good try, as we discussed the 1 is a given the 1 divided by 8 = .125 so the decimal answer is 1.125 inches. Try this one 2 5/8".
2.6255
Wish you could write down the total values on paper so i can visualize the whole number, thank you.
0.245"
thenx
ok, goto my videos for the wrong and right ways to adjust a central Mic.
Merci!
شكرا
thanks
Looking at 7:40 isn't it .200 + .50 + .20? because you said it's .200 + .25 + .20, but isn't it on the .50?
Although you can just start to see the second graduation it's not quite to the second graduation (2 X .025). So the answer is .200 + .025 + .020 = .245"
machiningmoments Oh okay good to know :)
is it 2.265
It's 2.6255
Thanks
+JamesTheGreat My pleasure.
So this is just the old version of the digital micrometers.
:) yes pretty much LOL
I managed to zero my inch micrometer, but not without scratching the shit out of it with the little spanner.
thou?
Yes, sorry machine shop slang. Thou. 1 thousandth of an inch. 0.001"
@@machiningmoments , it's all good ! Thanks!
sir, it wasn't ".500"...it was .498.....
I respectfully disagree, if anything the camera angle makes the size look a couple of 10ths under 0.500" so it might be 0.4998"
مطلوب
Lights flickering. Ugggh *vomits*
Yup, sorry. I bought a new camera.
No problem, I guessed it was just old camera or something. :)
It was very helpful, my old starrett mic is nicely accurate now.
Glad to hear, thanks for your note.
What is this hahhaha metric is so much easier hahah
How is maximum reading of micrometer?5 cm?
+Lau Huong This micrometer will measure from zero to 1 inch. The equivalent metric micrometer will measure from zero to 25 millimeters or 2.5 centimeters.
Can measure ping pong ball?
Sure