Marking out a PCD using dividers - the old-fashioned way

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  • čas přidán 21. 08. 2024
  • Marking and layout of engineering pitch-circle-diameter (PCD) bolt hole circles using the old-fashioned method using a set of dividers (or compasses)

Komentáře • 87

  • @EvoKeremidarov
    @EvoKeremidarov Před 3 lety +5

    The radius of the circle divides the circle into 6 even parts.. I was playing with my divider once and totally by accident discovered that.. I'm sure people a lot more clever than me have known this for centuries but I felt quite proud of my little own light bulb moment..

    • @y2ksw1
      @y2ksw1 Před 3 lety

      If you found out by yourself, you are a clever b***d 😄

    • @zanezakai5240
      @zanezakai5240 Před 3 lety

      You probably dont give a damn but does any of you know of a way to log back into an Instagram account?
      I stupidly lost my account password. I love any tricks you can give me!

    • @colecase7537
      @colecase7537 Před 3 lety

      @Zane Zakai Instablaster =)

    • @zanezakai5240
      @zanezakai5240 Před 3 lety

      @Cole Case i really appreciate your reply. I got to the site thru google and I'm trying it out now.
      Takes a while so I will reply here later when my account password hopefully is recovered.

    • @zanezakai5240
      @zanezakai5240 Před 3 lety

      @Cole Case it did the trick and I now got access to my account again. I am so happy:D
      Thanks so much, you really help me out!

  • @stevo3644
    @stevo3644 Před 4 lety +2

    Exactly what I need for marking out a PCD of 114.3 mm and 5 equally spaced 13mm holes without all the bs. You sir are a legend !

    • @AdeSwash
      @AdeSwash  Před 3 lety

      Thank you Stephen, regards Ade

  • @robertlewis4666
    @robertlewis4666 Před 4 lety +1

    Lovely! No batteries to go flat when needed most, no expensive reference books, no complicated hi tech tooling....the list goes on and on. Shows we can exist without all the new age B.S. Nice one thanks for posting!

    • @AdeSwash
      @AdeSwash  Před 4 lety +1

      Thanks Robert, I wonder what victorian engineers would have made of an iphone

    • @robertlewis4666
      @robertlewis4666 Před 4 lety +1

      @@AdeSwash Probable wonder why the hell we need one.

  • @LatheBits
    @LatheBits Před 5 lety +5

    The simplest ideas are always the best. Thank you.

  • @pauln1557
    @pauln1557 Před 3 lety

    Excellent!
    Many of us newbies to home machining never had basic training in the use of simple workshop equipment like this.
    Regards Paul in NZ

    • @AdeSwash
      @AdeSwash  Před 3 lety

      Glad it was helpful Paul :)

  • @aries6776
    @aries6776 Před rokem +1

    So simple and elegant. Thanks for sharing.

  • @pritpalsingh4729
    @pritpalsingh4729 Před 3 lety +1

    Very happy to learn PCD finding with help of diveder. Thanks sir

  • @AccidentalScience
    @AccidentalScience Před 2 lety +1

    Beautifully narrated useful information. Thank you.

  • @terrybailey2769
    @terrybailey2769 Před 4 lety +5

    Hi Ade, You don't need to do any of the tweeking, if you scribe the radius of the circle from the centre with the dividers and then chose your starting point, without adjusting the dividers they will step around the circumference exactly 6 times. Its a well known geometrical construction. If you want just 3 points then use each alternate mark.

    • @oh8wingman
      @oh8wingman Před 3 lety

      You got it. They teach this in most trade schools in the first year.

    • @aries6776
      @aries6776 Před rokem +1

      Even simpler! Thanks for sharing.

    • @MechInvent
      @MechInvent Před 7 měsíci

      I NEVER have luck with this. Why not ??

  • @gordonyoud5975
    @gordonyoud5975 Před 4 lety +3

    Where have you been all my life? I wish I had known about this simple "no math" technique. 😢❤👍

    • @Laya077
      @Laya077 Před 4 lety

      I'm India working Kuwait oil company ship maintenance work my whatapp namber +96565048866 welder

  • @samcoote9653
    @samcoote9653 Před 5 lety +3

    Hi Ade, love the humour and really well explained ideas in your videos, thanks so much for all the hard work, love it all, cheers, Sam

    • @AdeSwash
      @AdeSwash  Před 4 lety

      Thanks Sam :) Regards. Ade

  • @VintageGearMan
    @VintageGearMan Před rokem

    I have a beautiful set of vintage 3" Starrett dividers coming in next week.

  • @bustednuckles2
    @bustednuckles2 Před 5 lety +1

    This is a great video.
    I have now watched several of your videos, I thought for a while that you were new to me until I stumbled back on to your 4X6 horizontal bandsaw modification vid. I had actually seen that a few months ago when I finally bought one.
    You do some real pretty work sir and I enjoy your easy going teaching method. I added you to my long list of subscriptions.

  • @jmtx.
    @jmtx. Před 5 lety +4

    Low-tech at it's best. Thanks for sharing.

  • @CleaveMountaineering
    @CleaveMountaineering Před 3 lety +2

    great trick, I didn't know that one. for a 6 hole or a 3 hole, you can also set your circle radius, scribe the radius. The edges of the hexagon are the same as the radius. So just walk that around the circle. If you only want 3 holes, just drill the 3 you want. But this trick works for any number of holes I suppose~!

    • @AdeSwash
      @AdeSwash  Před 3 lety

      Yep. any number, up to infinity :)

  • @davespringate5469
    @davespringate5469 Před 5 lety +3

    Thanks Ade nice simple technique just what i need being new to this hobby

  • @VintageGearMan
    @VintageGearMan Před rokem

    A massive thank you sir!

  • @MrApmotos
    @MrApmotos Před 3 lety +1

    happy to find you with this video

  • @butterflywing61
    @butterflywing61 Před 4 lety +1

    Liked your narration!

    • @AdeSwash
      @AdeSwash  Před 4 lety

      Thank you :)

    • @butterflywing61
      @butterflywing61 Před 4 lety +1

      @@AdeSwash That 55 Degree tool is for Whitworth thread right? For years us kids couldn't figure out why our North American screws wouldn't work with our Meccano square nuts! :)

  • @johnkinnane547
    @johnkinnane547 Před 5 lety +2

    G'day Ade your work bench looks like mine, it's interesting you using the old callipers I have a set of DRO on the mill and lathe and I sometimes still use the old way, especially locking in measurements. Thanks for the vlog regards John

    • @AdeSwash
      @AdeSwash  Před 5 lety +2

      Hi John and thanks for the comment on my video, I have a DRO on my mill but it is cheap and I find it unreliable, so I rely on the old fashioned ways to work things to my needs, and at least this way I can guarantee the precision. Kindest Regards. Ade.

  • @Dj688toneo
    @Dj688toneo Před 18 dny

    Thank you so much Ade i would be using your way to make my Schmidt coupling part, hope that went well😅

  • @damienlepan3914
    @damienlepan3914 Před 4 lety +1

    Good shot saves time I value the advice.

  • @raymondmarteene7047
    @raymondmarteene7047 Před 5 lety +2

    Thanks ADE,
    Simple explanation well done
    They say a tidy work space is the sign of a sick mind........mmm easy peasy lemon squeezy?? 😂
    Cheers
    Raymond

  • @PrussianRedWhiteBlue
    @PrussianRedWhiteBlue Před 4 lety +2

    exactly what I needed. Thanks!!

  • @SalopianBivvyman
    @SalopianBivvyman Před 11 měsíci

    Genius 👌I’ll throw away my dividing machine, only wanted it for holes!

  • @larrybarnes3920
    @larrybarnes3920 Před 4 lety +4

    This is how I was taught when I did my time.

  • @stanwardoshiro
    @stanwardoshiro Před 3 lety +1

    This is ultra amazing!!!!

    • @AdeSwash
      @AdeSwash  Před 3 lety

      Simplicity in it's finest, Thanks for watching, Regards, Ade

  • @jeromegutierrez4149
    @jeromegutierrez4149 Před 4 lety +2

    Learned a lot from this video the i hate doing the math ,

    • @AdeSwash
      @AdeSwash  Před 3 lety

      Thanks Jerome, Regards Ade

  • @Man-in-da-shed
    @Man-in-da-shed Před 5 lety +3

    Well explained , as for your bench you must have a better compressor than mine, loved the comedy element

  • @tiggywinkle1000
    @tiggywinkle1000 Před 3 lety +1

    "Have to tidy up 'round here. Now where's my airline?"
    And promptly blows swarf all over the place!

  • @hobbyelectronics6630
    @hobbyelectronics6630 Před 4 lety +1

    Excellent !

  • @arccraft8583
    @arccraft8583 Před 3 lety +1

    this video very informative,tq sir!!

  • @EvoKeremidarov
    @EvoKeremidarov Před 4 lety +1

    thank you

  • @jamescole3152
    @jamescole3152 Před 2 lety

    I love it. But not all of us have a lathe. You could have done the whole thing with the divider if you could find the center.

  • @y2ksw1
    @y2ksw1 Před 3 lety

    We learned that at school.

  • @TheGentlemensMotorRacingTeam

    amazing thank you

  • @anuragpandey1455
    @anuragpandey1455 Před 4 lety

    Thank you so much for the informative video. How to do the pcd marking on a larger gear wheels of 800 mm diameter. It would be really helpful if you can tell what tools can be used?

  • @ronnieg6358
    @ronnieg6358 Před 3 lety +1

    I guess this would work for 5 holes too. Don't reply, I'll just try it.

    • @AdeSwash
      @AdeSwash  Před 3 lety

      To infinity - and beyond! ;)

    • @y2ksw1
      @y2ksw1 Před 3 lety

      For any number but 1 or 2.

  • @neiljarvis8911
    @neiljarvis8911 Před 11 měsíci

    Great video but not quite as lemon sqeezy when there are 5🤣!

    • @AdeSwash
      @AdeSwash  Před 11 měsíci +1

      It's the same process from 2 to infinity

  • @karlleber7003
    @karlleber7003 Před 3 měsíci

    Are there any plans for this, i could print out? Do you have a link? Kind regards

  • @sunnyswazz5876
    @sunnyswazz5876 Před rokem

    Hi there, what happens if your divider dosent go back to refrence point or slightly off what do you adjust

    • @AdeSwash
      @AdeSwash  Před rokem

      Hi Sunny, you adjust the divider until it does go to the reference point, only then is it set correct

    • @abdulnafeez1259
      @abdulnafeez1259 Před rokem

      divider

  • @staceynico
    @staceynico Před 4 lety

    Put back in lathe and scribe using tool, rotate job 120 degree scribe again then repeat?

    • @AdeSwash
      @AdeSwash  Před 4 lety +2

      How to get precise 120 degree rotation in a lathe without index?

    • @Ropetangler
      @Ropetangler Před 4 lety

      @@AdeSwash 3 jaw chuck could be used as an accurate index, that said, I really liked your approach to this subject, and the video that you did on using a boring head for ball turning. Have only just found your channel, have subbed and look forward to seeing more of your work. Thank you for all your hard work and the time that you must have put in.

  • @riderlife2571
    @riderlife2571 Před 2 lety

    ❤❤❤❤❤❤❤❤❤😍😍😍😍😍😍😍😍😍😍😍🤩🤩🤩🤩🤩🤩🤩

  • @stevehuntley3089
    @stevehuntley3089 Před 3 lety

    Or you could just look up the chord length in Machinery's Handbook...

    • @AdeSwash
      @AdeSwash  Před 3 lety

      What page is that info on Steve? would be handy to know

    • @aries6776
      @aries6776 Před rokem

      Or just use this formula: sin(DEG/2)*2, where DEG is 360/n, with n is the number of holes. Then multiple the result by your radius to give the chord length.

  • @grahamwhite1656
    @grahamwhite1656 Před 4 lety

    Seven holes? Five holes? Odd numbers are a bit more difficult.

    • @AdeSwash
      @AdeSwash  Před 4 lety +1

      Actually Graham White, they are not, you can walk any number of points, from two to infinity- and beyond!

  • @pommeran211
    @pommeran211 Před rokem

    vẽ 6 đỉnh lục giác sao kém vậy.vẽ 6 đỉnh thì được luôn 3 đỉnh thôi

  • @terrytibs1977
    @terrytibs1977 Před 3 lety

    Such bad practice using your Vernier callipers as a scribe.

    • @AdeSwash
      @AdeSwash  Před 3 lety

      They are my vernier scribes, its their job!

  • @larryphelan7122
    @larryphelan7122 Před 5 lety +1

    Anyone who can,t do that should not be in a workshop to begin with. Six year old,s can do that,it,s no big deal.

    • @AdeSwash
      @AdeSwash  Před 5 lety +12

      @larry phelan, six year old's also know the difference between apostrophes and commas, just sayin' ;)