Making a simple Rotary Broach Tool

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  • เผยแพร่เมื่อ 9 ก.พ. 2025
  • Using ER20 collets and commercial collet holder. 6204 and 30204-A bearings. Back seal of the 6204 removed and a grease nipple provided to inject grease between the bearings.
    The broach protrusion is adjustable to accommodate different broaches lengths.
    The body is the only more demanding part It is turned with the bore concentric and undersized. The bore is then bored to size at the correct angle (1.8 degree)

ความคิดเห็น • 32

  • @homemadetools
    @homemadetools 2 ปีที่แล้ว

    Excellent! We shared this video on our homemade tools forum this week 😎

  • @goldagent77
    @goldagent77 3 ปีที่แล้ว +2

    Good project Papa

  • @ToBeeOrNotToBeHoney
    @ToBeeOrNotToBeHoney 4 ปีที่แล้ว +1

    Nice video, I would love to hear some narration along with it.

    • @billzweig
      @billzweig  4 ปีที่แล้ว +1

      Sorry, English is not my first language (forth, actually) and while being fully proficient in it, I am always a bit self-conscious about my accent and pronunciation.

    • @ToBeeOrNotToBeHoney
      @ToBeeOrNotToBeHoney 4 ปีที่แล้ว

      @@billzweigI understand. Personally I enjoy hearing other people's accents. Heck I can barely speak one language so am not in any place to judge your pronunciation. As I said I enjoyed the video, but it would be nice to have a voice to go along with it!

    • @cywineloziom
      @cywineloziom 3 ปีที่แล้ว

      @@billzweig hej. Możesz podać adres e-mail do kontaktu. Mam kilka pytań. Pozdrawiam.

    • @billzweig
      @billzweig  3 ปีที่แล้ว +1

      @@cywineloziom billzweig@gmail.com

  • @Sasarazi7952
    @Sasarazi7952 3 หลายเดือนก่อน

    Thanks .very fine explanation 🙏🏻

  • @David-Rule
    @David-Rule 2 ปีที่แล้ว

    Tightening up on that parrell strap contraption. It just like putting your gauge blocks in a vice. I'll bet they don't ring anymore.

  • @rjordans
    @rjordans 3 ปีที่แล้ว

    Great project!

  • @valanjo2001
    @valanjo2001 3 ปีที่แล้ว

    Parabéns pelo excelente trabalho.
    Vou confeccionar esta ferramenta.

  • @naushilb
    @naushilb ปีที่แล้ว

    Hello, are you able to share the design files for your project? Thanks!

  • @daveb3910
    @daveb3910 6 หลายเดือนก่อน

    Cool project. You may want to lower your top end on the audio though, it's a little harsh. My wife thought it was raining from the background highs

  • @airsystems
    @airsystems 3 ปีที่แล้ว

    Excellent! Thank you!

  • @hulkaplasta6558
    @hulkaplasta6558 3 ปีที่แล้ว

    VERY NICE

  • @gordonschmidt1402
    @gordonschmidt1402 3 หลายเดือนก่อน

    Why go to all the trouble, when you can just run the the broach between the work piece and an offset tail stock with a live center? Am I missing something?

    • @billzweig
      @billzweig  2 หลายเดือนก่อน +1

      It is not the same effect. The rotary tool needs to wobble; basically a precession movement

  • @landlockedviking
    @landlockedviking 2 ปีที่แล้ว

    Man you have a great collection of tools! What's the max capacity of the broacher?

  • @adamsz5759
    @adamsz5759 4 ปีที่แล้ว

    Super travail, comment t'as adapter microscope a ta fraiseuse ???

    • @billzweig
      @billzweig  3 ปีที่แล้ว +2

      This is the original "Moore" centring microscope used on my "Moore" jig borer. Can be used on a milling machine as well.

  • @mosfet500
    @mosfet500 3 ปีที่แล้ว

    Thanks for this Bill, it will save me work calculating proper angles.
    I'm making one but using smaller bearings. One thing, on your dimension sheet you show a dimension of 41.6mm. I'm not sure where the two points of this dimension are. It looks like this dimension is not needed but I wanted to check with you in case I'm wrong. Also, what's the optimal tip protrusion?
    Thanks for your time and help.

    • @billzweig
      @billzweig  3 ปีที่แล้ว +2

      The 41.6 is the initial bore diameter machined concentric with the outside during the turning of the body. It can be smaller as the actual size is not important - it is just to make the final, 47mm angled bore easier to bore. The tool protrusion is adjusted so the tip will cross the axis of rotation at that point - the tip is just wobbling without ascribing a circle. So the amount of protrusion is determined by the rest of the geometry; the angle and the offset from the centre.

    • @mosfet500
      @mosfet500 3 ปีที่แล้ว +1

      @@billzweig Thanks for the reply Bill, I appreciate it. I have all the parts to make mine now.

  • @davidng1105
    @davidng1105 3 ปีที่แล้ว

    Where did you get the er20 collet chuck? Rather difficult to find an c20 er20 l50 chuck. Did you consider using a double row angular contact bearing instead?

    • @billzweig
      @billzweig  3 ปีที่แล้ว +1

      Collet chucks are quite inexpensive, got it from Aliexpress. Accuracy here is not that important. A double row angular contact bearing could work, however the axial force is considerable in this application and taper roller bearing is not more expensive.

    • @davidng1105
      @davidng1105 3 ปีที่แล้ว

      @@billzweig So silly question, but did you cut the shaft length down off a longer chuck?

    • @billzweig
      @billzweig  3 ปีที่แล้ว +1

      @@davidng1105 Yes, the shaft was parted on a lathe. It is usually quite hard but carbide tool will have no problem.

  • @tempest411
    @tempest411 9 หลายเดือนก่อน +1

    Making a Simple Rotary Broach Tool. Step 1: buy $80,000.00 worth of machine tooling and set it all up in a shop in your $750,000.00 home.

  • @adamsz5759
    @adamsz5759 4 ปีที่แล้ว

    Quelle est référencé de ce microscope ???

  • @policebox1092
    @policebox1092 5 หลายเดือนก่อน

    AAwesome

  • @tranphihung3879
    @tranphihung3879 ปีที่แล้ว

    Đèn màu vàng nhìn thấy mờ quá không ok

  • @clintchapman4319
    @clintchapman4319 ปีที่แล้ว +1

    You can't even show the machining? Geez...