REPAIRING A STARRETT TEST INDICATOR

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  • Опубликовано: 15 янв 2025

Комментарии • 185

  • @hbracerx
    @hbracerx Год назад +10

    Wow, we got a mini restoration video, a how it works video, a how-to video and a rant all in a 20 minute video...pretty impressive I'd say. You've hit your mark again educational and entertaining. Thanks for taking the time to do this!

  • @zoltannagy1813
    @zoltannagy1813 Год назад +3

    Mr Pete. You are indeed gifted. Who else could, "turn a 2 minute video into a 20 minute video" and still keep us interested. Shame on Starrett for not sponsoring you in light of your fifty years of loyalty. Keep up the videos Mr Pete.

    • @mrpete222
      @mrpete222  Год назад

      😄😄

    • @MrTIGERH1752
      @MrTIGERH1752 Год назад

      Lyles excellent ability to extend an explanation, comes from many years of teaching High School shop classes.
      I know because it's the same thing when I started teaching High School shop classes 33+ years ago.
      It is a survival skill, as High School students are easily bored, and somewhat rowdy if under stimulated!!! LOL!!!
      Class is supposed to last 55 min, and no less!!!
      You need to fill every minuet with something educational.
      Tim

  • @Duckfarmer27
    @Duckfarmer27 Год назад +17

    Lyle - A very interesting video. I have both other indicators you showed - the Ideal was bought by my Dad when he was fresh out of high school and a 'set up man' on the IBM plant machine floor in 1941/42 before he left for pilot training. Most of his work then was on gear hobbers. The Ideal is in the original box and has a Rochester, NY address instead of Brooklyn. Still works fine. The plant I worked at most of my career had mostly women doing very fine repair work on electronic assemblies also under microscopes. Very precise work with rigid certification requirements. They were great people to work with. The computers we built went in space and military aircraft where reliability was critical. Kind of hard to 'hook up the spring' when at 35,000 feet or in the Space Shuttle. Have a good weekend.

  • @kevinyonke6773
    @kevinyonke6773 Год назад +5

    Nothing like Saturday morning watching Mr. Pete. Reminds me of Saturday mornings many years ago watching Bugs Bunny with a bowl of frosted flakes. Puts the same smile on my face. Thanks for the videos

  • @hersch_tool
    @hersch_tool Год назад +6

    Great video Mr Pete. I have one of these, I love old tools, the older the better. This gives me confidence to open up mine and perform a bit of maintence myself.

  • @jodydoakes8754
    @jodydoakes8754 Год назад +9

    Great video. Thanks for all of the effort you put into making these. Looking forward to another 10-15 years of them! Probably your eyesight won't let you go beyond that.

  • @ablelock
    @ablelock Год назад +6

    I enjoyed the building of the tools. I think you oughta do more of those. If you can see to be able to do them they were quite interesting.

  • @richardockman5988
    @richardockman5988 Год назад +2

    Your not sliping , the world we are in is sliping. Taking us thru that indicator gave us a better understanding of how it works. Don't change how you do your videos.

  • @timeflysintheshop
    @timeflysintheshop Год назад +12

    She loved the job because of the other people around her, not the job itself. One problem with our jobs today is that everything is becoming transactional. People don't trust each other and don't really have friends at work. Everyone is there to do just as much as they need to and nothing more. The companies have no loyalty to their employees and the employees have none for the company. A state of affairs, but you can still find people who are happy in a group if you go to a small church!

  • @wilsonhardy2100
    @wilsonhardy2100 Год назад +2

    Ok, Now mine works too. I pulled it out of the bottom of my toolbox where it lived because it didn’t move like it was supposed to. Liquid wrench to the rescue. Thanks Mr. Pete!

  • @brianhillary7469
    @brianhillary7469 Год назад +1

    I really enjoyed seeing the inner workings of that indicator. I was excited when you said that you were going to open up the dial indicator. Thanks for sharing!

  • @caseytailfly
    @caseytailfly Год назад

    Love to see these neat old tools, I especially like those little Starret vices! Also very satisfying to find and easy fix for broken auction finds!

  • @joselrodriguez5999
    @joselrodriguez5999 Год назад +2

    Always teaching me something, always entertaining! I got you face in my personal Mount Rushmore of the great teachers of my life.

  • @RRINTHESHOP
    @RRINTHESHOP Год назад

    Nice fix with steady hands. So many things just need a bit of lube and they are ready to go. Thanks for the great story.

  • @sethmuse6838
    @sethmuse6838 Год назад

    Love the troubleshooting, and even more the story about the young lady you met that enjoyed the tedium of working at Westclox. A playlist of storytime and rants would be nice. My favorite rant includes the line "Did you even look at the drawing?! There are highly paid engineers..." that This Old Tony used in one of his videos. Thanks for the edutainment!

  • @lesmaybury793
    @lesmaybury793 Год назад

    I love to see those old tools resurected and given another life. Excellent video.
    I remember those Starrett indicators from Aprenticeship days. days.k

  • @stevenpressley5956
    @stevenpressley5956 Год назад +4

    Great video. A worthwhile effort to fix a wonderful tool. Would love to see you attempt to repair some of the indicators in the box. 👍🇺🇲👊

  • @larryvergon6740
    @larryvergon6740 Год назад

    Keep 'em coming.
    I find that opening up a non-working item works out a lot like what you found on this indicator. Soon after we were married (about 53 years ago) we went too my parents home for a weekend visit. Mom asked me to look at both of her kitchen mixers. One was a Kitchen Aid stand mixer she got as a wedding present. The other was a hand mixer. Neither worked. I opened up both and couldn't find anything wrong, so I cleaned them out (a lot of flour in both) and put them back together. Both worked! Apparently enough flour got up inside both to keep the brushes from contacting the armature. That Kitchen Aid was still working when Mom passed about 40 years later, although it wasn't getting used much anymore!

  • @johncloar1692
    @johncloar1692 Год назад +1

    Mr. Pete your video are some of the best on the web. I love the repair videos. None of your video are complete waste. Enjoy the video Thanks for taking the time to do these videos.

  • @chuckfischer7202
    @chuckfischer7202 Год назад +2

    I, too, have a couple of those from my Dad's tool box. Kind of gummy, but probably would respond to a little TLC. Reminds me of the Bourdon tube in found in a pressure gauge. Good to see the insides. Carter Carburetor's tool room.

  • @lathammarx1458
    @lathammarx1458 11 месяцев назад

    I dont know why but I think those antique Starrett indicators are just sweet looking. Just an ole-timey look to them. Glad the spring was just off and not broken, definitely would have been a difficult spring to reproduce. Another great video Tubalcain.

  • @steveparker8723
    @steveparker8723 Год назад +2

    Always like seeing how things work and taking things apart and fixing them.

  • @Ammoniummetavanadate
    @Ammoniummetavanadate Год назад +1

    Seeing that mechanism was worth the whole video on its own.
    That is absolutely fascinating and kicked off a few ideas for some design problems I am facing.

  • @steveweidner8311
    @steveweidner8311 Год назад +1

    Love your "rants" - don't ever stop!

  • @jlplumley2
    @jlplumley2 Год назад

    You are a gem I enjoy watching your videos. I learned bits of information every time I watch your videos.

  • @renaissanceman7145
    @renaissanceman7145 Год назад +5

    I am always impressed by and interested in all things precision. It’s amazing the number of ways to check the same thing.

  • @dougvanallen2212
    @dougvanallen2212 Год назад +2

    Hey Mr Pete I have a few old style indicators every once and awhile I’ll take them for a ride and think about when things weren’t so complicated

  • @alro2434
    @alro2434 Год назад +6

    ALWAYS interesting MrPete, thanks. Would'a liked to see how the indicator's tip is designed/works, guess I'll hafta settle for half the mechanism. A little blast of air will force the lube into it & clean out some smegma if you're not gonna disassemble & clean it for real.
    Also, 19:08 that mandrel had 5 tenths on its package, .0005 per inch taper. So you measured about .004 difference, .008 taper over 6in, about 13 tenths - .0013 per in. Wrong box?? Thanks.

  • @vitesseguy
    @vitesseguy Год назад +2

    Thanks for another interesting video. Keep it up.

  • @warrenlee3113
    @warrenlee3113 Год назад +1

    That’s Mr Pete, good video

  • @shadetreemechanicracing22
    @shadetreemechanicracing22 Год назад +1

    Mr Pete we are all proud of you. 🫡

  • @stevebosun7410
    @stevebosun7410 Год назад

    Hi Mr P, thanks for an insight into the world of yesteryears metrology. Keep the videos coming.

  • @joerogi8401
    @joerogi8401 Год назад +3

    Mr. Pete,
    It seems a lot of folks would like to see you compare the accuracy of these indicators against a dial test indicator. If you repeat the end to end test of the arbor perhaps you could include a still shot of your calibration sheet for your Rubbermaid surface plate. 😂
    John 🇨🇦

  • @Flatlapper
    @Flatlapper Год назад +1

    Very well done and informative. I always enjoy my visits here. Thank you Sir!

  • @keithschwartz7318
    @keithschwartz7318 Год назад

    Great video to start my day. When I had girls in my shop classes, they were the best. They always paid attention to details. Boys just hurried through the task.

  • @Hank_Snow
    @Hank_Snow Год назад

    Love these kinda videos, especially with vintage Starrett stuff. Keep on it Mr. Pete.

  • @rexmyers991
    @rexmyers991 Год назад

    Great video. You have given me the confidence to repair one of my inoperative indicators.

  • @brianbutler3954
    @brianbutler3954 Год назад

    Hi Lyle, great Video, and I loved the rant. Your video's are a breath of fresh air you enjoy making video's , I am getting so tired of all the RUclipsrs who constantly are asking you to support them on Patreon , most likely so that they can buy more tools or another machine .

  • @seanobrien7169
    @seanobrien7169 Год назад +2

    Your last video got me to looking into the whole patent art thing, I didn't realize it was such a big thing. Laser engravers are pretty cool, thinking I might get one. I can see a lot of uses for it.

  • @warrenlee3113
    @warrenlee3113 Год назад +2

    Thanks Mr Pete, good video

  • @johnquinn3899
    @johnquinn3899 Год назад +2

    Good morning Mr Pete. Another interesting video, curious about the spring & if it could be replaced by spring steel - what a project !!!!! Thanks, John

  • @G1951-w1y
    @G1951-w1y Год назад +6

    At about 8:00 minutes in I was thinking you could use a guitar string. You can buy the high E string in .009". Great video by the way. And I sympathize with Westclocks on their radium remediation. A company I was with went through the same thing because of supposed lead contamination.

    • @mrpete222
      @mrpete222  Год назад +2

      Awesome, never thought of a guitar string

    • @jenniferwhitewolf3784
      @jenniferwhitewolf3784 Год назад +1

      I an am an electric guitar player. I always keep take-off strings that vary from .008 on up to larger sizes, where it often gets used in model making. I share both the plain wires and wound wires with other model builders too. Used guitar strings a great resource for springy wire.

    • @G1951-w1y
      @G1951-w1y Год назад

      @mrpete222 Hey Mr. Pete, you can still learn a thing or two from us 72 year old whipper snappers!

    • @alangrawien103
      @alangrawien103 Год назад

      I carry piano wire of different sizes in the shop just for spring making.

  • @michaelsimpson9779
    @michaelsimpson9779 Год назад +1

    Well done sir

  • @100yojimbo
    @100yojimbo Год назад

    Nice repair Mrpete 👍👍 . That magnifying light looks amazing, wish I had one they are all cheap led ones now.

  • @Udmudmudm
    @Udmudmudm Год назад +1

    Your cannel is very interesting, 👋👋from Italy

  • @stevenhintz5508
    @stevenhintz5508 Год назад +1

    The Optivisor is my best friend too, almost always on my head in the shop

  • @hughdanaher2758
    @hughdanaher2758 Год назад

    I believe the art of maintaining and repairing tools is just as important as using said tools. Tools are an extension of ones hands and brains and they must be maintained to do the best work possible.

  • @brentandrade5861
    @brentandrade5861 Год назад

    Easy fix, glad you found more nice accouterments. If we all could find em'

  • @stevenhavener7327
    @stevenhavener7327 Год назад

    I have one even more primitive, you have inspired me to go fix it !! best regards, Steve

  • @familyd5952
    @familyd5952 Год назад +1

    Good Morning Mr Pete!!!
    The Tennessee Mole Man
    👍🇺🇸🍊🍊🍊🙏✝️

  • @MrTIGERH1752
    @MrTIGERH1752 Год назад

    Hi, Lyle
    You might try using an ultrasonic cleaner.
    Fill the ultrasonic cleaner with fresh water, and place the part to be cleaned ( Your Indicator) in a zip lock bag, with your favorite cleaner, Liquid Wench with enough to cover your part.
    Give it a run or two in the ultrasonic cleaner, and you will be amazed how the vibrations works cleaner in and out of every small craves.
    Do the same thing with some mineral spirits, to remove the Liquid Wrench, and follow up with a vibratory bath in a fine light oil.
    I've cleaned many precision assemblies with this method, and never harmed anything.
    The great thing about zip lock bags, is how little chemical that you use to get something very clean/oiled, and you never get the cleaner tank dirty.
    Tim

  • @m9ovich785
    @m9ovich785 Год назад

    Another very well done Video Lyle.
    Thanks MUCH...
    Mike M.

  • @AdrianPardini
    @AdrianPardini Год назад

    Mr. Pete, thanks for all the effort you put in these videos.
    I love the patent drawings and the way you explain them. (and the extra credit too).
    And I'm a bit jealous of your hands, 37 and starting to shake here :)

    • @mrpete222
      @mrpete222  Год назад

      Thank you for watching. No one has ever been jealous of my hands.

  • @philipiano001
    @philipiano001 10 месяцев назад

    Great video. Not a big deal. I would have cleaned out the inside of the indicator with a qtip, the discolored shephards hook got my O/C going. I usually run the cover lightly over some thousand grit to knock of any rust. Now a big Mr. Pete fan bio. 👌

  • @dannyl2598
    @dannyl2598 Год назад +1

    Thank you Mr Pete.

  • @wrongtown
    @wrongtown Год назад

    Thanks for sharing mate, with great appreciation from Perth, Western Australia.

  • @sinus2220
    @sinus2220 Год назад

    I just love your videos, each and every one of them sir!

  • @be007
    @be007 Год назад

    i like your rant,s the most mrpete 🙂 i always have to smile and your always spot on with your rant,s.
    cheers ben.
    oh wait, and i like your video,s.

  • @michaelrohr4280
    @michaelrohr4280 Год назад

    Good job sir. Thank you for the video 👍

  • @Ray-r5j9u
    @Ray-r5j9u Год назад +1

    Thanks Mr Pete o

  • @angelramos-2005
    @angelramos-2005 Год назад

    Great video,mrpete.Thank you.

  • @nottoday62
    @nottoday62 Год назад +1

    Brian from Ma What a great video nice little vises I’m working on a vise for a class project almost done in between cutting up a cord and a half of five six foot lengths into 18 inch fire wood and splitting with axe and changing engine in 2019 Nissan marano anyhoo snuff pouting Thank you Besafe

  • @debcamp2359
    @debcamp2359 Год назад

    Appreciate all that you do.

  • @johnthayjr4237
    @johnthayjr4237 Год назад

    Nice job

  • @profandrewstarr
    @profandrewstarr 11 месяцев назад

    Great video. Nice to see small repairs (I do model railways and clocks)

  • @robertwalker7457
    @robertwalker7457 Год назад

    Mate, very interesting again thankyou.

  • @garychaiken808
    @garychaiken808 Год назад

    Good job 😊

  • @ssboot5663
    @ssboot5663 Год назад

    Great video as always!

  • @joelmollenkopf3767
    @joelmollenkopf3767 Год назад

    Excellent

  • @inspector1794
    @inspector1794 Год назад

    That was interesting.
    It reminds me of a book reprint I got from Lindsey Publishing, many years ago.
    One book from the 20's or 30's was shop projects and these indicators look a lot like one of the projects that I thought might be fun to make. I never did but maybe I'll see if I can find that book.
    Thanks for sharing, I enjoyed that.

    • @mrpete222
      @mrpete222  Год назад

      I would be interested in that

    • @inspector1794
      @inspector1794 Год назад

      I had a look for that book but it's buried deeper then I realize, probably why I never tried to make one. I did find a similar one that I'll take some pictures of and send to you.@@mrpete222

  • @MrShobar
    @MrShobar Год назад +1

    I inherited a handful of these indicators, which were all made by Lufkin. I have used them quite a bit and they work fine. One drawback is that they are somewhat hard to read unless the illumination is good, particularly if you use an inspection mirror. The test indicators I have also include a scale perpendicular to the main scale so that you could also read them from the back of the indicator.

  • @rdon53
    @rdon53 Год назад +1

    Undaunted, that's the way to be , your up to date.

  • @ellieprice363
    @ellieprice363 Год назад

    I’ve never actually seen indicators like these but now I understand a little of how they work. Marvel Mystery oil or a drop of kerosene are my lubricants of choice for precision instruments. My dad always cleaned and oiled his mantle clock with the tip of a feather dipped in kerosene. Kerosene sold for $.20 gallon for many years.

  • @edl5074
    @edl5074 Год назад

    Great explanation!! I got two of them with a pile of standards in a box at the flea market very interesting might have to clean them up !!

  • @Randysshop
    @Randysshop Год назад +1

    Good job fixing the indicator. I have a small set of machinist clamps and the 1 screw is missing, so no problem I will make one. The problem is the thread pitch of the other screw, its not metric or 32 pitch or 28. An 8-32 screw starts but will not go through. stumped Thanks👍

    • @azza-in_this_day_and_age
      @azza-in_this_day_and_age Год назад +1

      would it be safe to assume this set has another piece with the particular screw in question not missing? if so, does it fit into the threads of the missing? if so, copy that screw. if any answer above is no, look up a set of thread pitch guages, which are basically a keychain full of all varieties of thread pitches and diameters. also, home depot has thread guages mounted to their racks in the hardware section

    • @petemclinc
      @petemclinc Год назад +1

      Could be a British screw pitch...

    • @bwyseymail
      @bwyseymail Год назад +1

      Yes, it could be a British thread. BA threads have a 47.5 degree angle as opposed to American and Metric 60 degree angles. Which means the threads are deeper. So a BA screw will fit an American nut but not the other way around. Also once you get into numbered screws all bets are off, they are completely different systems.

    • @Randysshop
      @Randysshop Год назад

      Thanks for the info, I will check the machinery hand book on this and see what I come up with.@@bwyseymail

  • @petemclinc
    @petemclinc Год назад +1

    Interesting mrpete, I have 2 of these but they are not Starrett brand. You should compare these to
    a dial test indicator such as your Starrett Last Word or a tenths (0.0001) indicator and see how
    accurate they are.

  • @jaybailey3518
    @jaybailey3518 Год назад +2

    That's half the reason I watch all your videos...for the RANTS !!!

  • @dankotos61
    @dankotos61 Год назад +1

    I used to use one of those indicators when I worked for Pitney Bose

  • @nomercadies
    @nomercadies Год назад +1

    Slip away my good man!
    Right behind you.

  • @terrycannon570
    @terrycannon570 Год назад

    I have the Ideal version of that indicator and I also have the version of the older Starrett. Maybe you could show us how the long one works.

  • @junkmannoparts9696
    @junkmannoparts9696 Год назад

    Great Job Mr. Pete are you going to do a video of the Bridgeport angle drive with arbor support and how large of a cutter can be used . Thanks

  • @mikekrening7327
    @mikekrening7327 Год назад

    What do you think the little hole is in the tip is for? Maybe used in assembly? Thanks!

  • @jasonadams6468
    @jasonadams6468 Год назад +2

    And what was the hole in the stylus for?

    • @mrpete222
      @mrpete222  Год назад

      String

    • @jasonadams6468
      @jasonadams6468 Год назад

      Yes, a string...
      That might be a topic of discussion for a future video visit 🤔

    • @jasonadams6468
      @jasonadams6468 Год назад +1

      Good job Mr Pete 👏
      I have enjoyed your teaching over the years, and have sent apprentice your way.
      Apprentice, Journeyman and Master
      The Master part of the trilogy is a fallacy!
      We are always learning something new.

  • @timeflysintheshop
    @timeflysintheshop Год назад +2

    Hey that was a teaser for your next video! BEHIND THE SCENES OF MR PETE! 👍😁😀👍😂👍. I am only half joking. You could make a behind the scenes video. I would watch it!

  • @christurley391
    @christurley391 Год назад +1

    Thanks again

  • @hirsutusi5536
    @hirsutusi5536 Год назад

    Enjoyed the video. Why did the spring come off in the first place?

  • @CA_Rock
    @CA_Rock Год назад

    Thank you for the 'how it works' video, I've never been brave enough to open up a dial indicator.
    Your measurement of the mandrel taper was unfortunately not done on a surface plate, thus the surface of the desk adversely impacted the measurement.

    • @mrpete222
      @mrpete222  Год назад

      I knew I shouldn’t have done that experiment. I do not have a large surface plate

  • @melgross
    @melgross Год назад

    It looks that the spring is fine. It just unhooked from the indicator arm. Ok, I wrote this before you saw that. I was wondering if you would.

  • @timeflysintheshop
    @timeflysintheshop Год назад +1

    It sure was IDEAL! 😀😁😂🤣😆🤣😄🤣

  • @cyclebuster
    @cyclebuster Год назад

    Years ago i bought an electronic "reader" from the Ferris Library. It was never used. I got all the information and packaging. I paid $20 for it. it has an x y table big enough to hold an encyclopedia. It has an electronic power zoom, and auto focus. And it zooms to a cats whisker. You can also put a stationary magnifying glass half way, and it still autofocuses. Handiest darn thing i ever bought, i could write the lords prayer on the head of a pin with it. NOBODY at the auction knew what it was. it has a 17 in high def monitor, and can export video feed. i used it last repairing ho slot cars. I bet Ferris paid $10,000 for this thing. Its designed for impaired persons to read books. i wish i had 2 of them, you would love one too. Also i have a machining dilemma, if you could and have a few mins can you email me? I know your busy, same as me, i just need a second opinion before chips fly on the irreplaceable steel. Either way thanks for teaching me every week!

    • @mrpete222
      @mrpete222  Год назад

      I have never seen one of those electronic readers. I did not know they even existed. But I often wondered if maybe I could make one.

  • @Je.Suis.Flaneur
    @Je.Suis.Flaneur Год назад

    I should have liked to see you calibrate those test indicators against, say, a Last Word indicator -- just to flesh out the video. Thank, Lyle. --- OH! I flunked Shop and got a A in Home EC (LOL).

  • @duron700r
    @duron700r Год назад

    Classic vid! Thank you.
    You believe you're slipping.
    I've been accused of being smart but your brain moves far faster at 80 than mine at near 60.
    Oh! The reference to light oils like 3 in 1 or even turbine oil is a good one. The old oils in that tester had gummed up. Perhaps a drop or so might keep it loose?
    After being told not to use engine oils in certain parts, I did and long term it didn't work out well. A box fan motor comes to my mind.
    Wasn't it a blessing to work within a good crew?
    Now there are teams. Not that cool.

  • @hankmerkle5928
    @hankmerkle5928 Год назад

    Thank you for this - GREAT video! Mr. Pete, have you ever done a refurbishment on a last word indicator? (I couldn't find it if you have...)

  • @meltonplumbing9636
    @meltonplumbing9636 10 месяцев назад

    Enjoy these

  • @TheUncleRuckus
    @TheUncleRuckus Год назад

    Not sure if it was accidental or on purpose but you mixed up the Covers & Screws, the cover & screws you put on your original indicator goes on the other one with the red marker on it.

  • @marknahabedian1803
    @marknahabedian1803 Год назад +2

    Liquid Wrench evaporates pretty quickly. I wonder how long it will stay lubricated.
    Our neighbor when I was growing up had managed a factory during WW2. He managed a group of women who soldered these hair thin wires of signal transformers. Wire so thin he could barely see and would burn up if heated too long. He was amazed at the skill of those women.

  • @billstoner5559
    @billstoner5559 Год назад

    😊😊😊

  • @johncrea9395
    @johncrea9395 Год назад

    Lyle
    If you need thinner oil, just dilute that Starrett oil with Naptha or lighter Fluid
    John

  • @fredmorton1631
    @fredmorton1631 Год назад

    When it comes to playing with fine springs like that I tend to resort to guitar strings. Made in a variety of guages and very springy. When I re string my instruments I save the off-cuts for the shop store.

  • @nickp4793
    @nickp4793 Год назад

    Does anyone know what the hole was for at the contact ball? Does the lever arm rotate to different angles like on a Last Word?

    • @zedostenso3069
      @zedostenso3069 Год назад +1

      The hole is for measuring runout on shafts located in hard to reach like inside a transmission for example. You would tie a piece of line to the hole loop the line around the shaft you want to check and anchor the loose end now tension the line zeroing the needle or not rotate the shaft, you could detect up to about 10th of runout. Cheers