LMI Neck Joint Jig - How to use

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  • เผยแพร่เมื่อ 29 พ.ย. 2024

ความคิดเห็น • 57

  • @stephen3073
    @stephen3073 8 ปีที่แล้ว +1

    Robbie, I like it when you can say, "Life is good". Everything lines up perfectly, there are no gouges in that new jig from lifting a still-spinning router, and the tools interface smoothly with the human brain that's using them.
    You make it look so easy, and you are such an effortlessly fluent teacher that even the dreaded neck joint becomes a smooth move.

    • @OBrienGuitars
      @OBrienGuitars  8 ปีที่แล้ว

      Thank you for the compliment. Happy Building!

  • @V081WLBlue
    @V081WLBlue 3 ปีที่แล้ว +2

    lol, you got me with 'until you hear a crack'!!!!

    • @OBrienGuitars
      @OBrienGuitars  3 ปีที่แล้ว

      Glad you saw the humor in that. Happy Building.

  • @tomallen8527
    @tomallen8527 11 หลายเดือนก่อน

    Thanks for the detailed account of using this great jig. I have tried to get it from LMI however they don’t seem to carry it anymore. Do you know where I can get plans to build one. Thanks for your help.

    • @OBrienGuitars
      @OBrienGuitars  11 หลายเดือนก่อน

      You can get plans for this jig on the Lutherie Academy website. lutherieacademy.com/plans

  • @Uncle_Buzz
    @Uncle_Buzz 8 ปีที่แล้ว

    Really great video Robert! More like that please! Cheers, Chris.

  • @riverainstruments
    @riverainstruments 8 ปีที่แล้ว

    Hey Robert, great video. I noticed quite a difference of this jig with the original. I am still using the original one but see some benefit of this one. For now i have been doing straight mortise and tenon until i figure out how yo compensate the dovetail as the top of my instruments are narrower and not flat, the upper bout narrows down and have not found a dovetail bit that can accomodate the cut for neck to perfectly fit the body.

  • @edadpops1709
    @edadpops1709 8 ปีที่แล้ว +2

    I like the new jig. but will it work on an archtop, with a 1" bridge height ? Also when setting an arched body in the jig do you need blocks to support it in place ,to deal with the arch?

  • @georgescarlett2320
    @georgescarlett2320 5 ปีที่แล้ว +2

    Would definitely swap out the "composite board" template for one of Lexan, my friend. Gb g

  • @Setsofiah
    @Setsofiah 2 ปีที่แล้ว

    Hey there Rob, I've got your dovetail jig, my body and neck blank are well made and ready to go, (first build) I've purchased a nice plunge router; but there's an issue. Your old Porter Cable seems to be a smooth operator, but mine, as you gradually press down on it resists and then jumps down an inch or so. I thought that maybe by having it turned on, the vibration would ameliorate that, but no. Do you use furniture wax or something to lube the shafts? Mark Morrison

    • @OBrienGuitars
      @OBrienGuitars  2 ปีที่แล้ว +1

      You can try wax but perhaps a better router?

    • @Setsofiah
      @Setsofiah 2 ปีที่แล้ว

      @@OBrienGuitars a tiny bit of paste wax improved things, the operation went well today! I found that with the dovetail bit I bought from you, you don't use the guide bushing. With it, the bit cuts only the bottom half of the channel cut with the straight bit.

  • @sockpuppet3901
    @sockpuppet3901 8 ปีที่แล้ว

    It was awesome, O'Brien! Thanks a lot!

  • @danielfrenette8721
    @danielfrenette8721 ปีที่แล้ว

    Are you building your top with a radius or flat? If so: what radius are you using both for the top and back? Thanks! Really enjoy your videos!

    • @OBrienGuitars
      @OBrienGuitars  ปีที่แล้ว +1

      I use 30ft for the top and 15ft for the back.

  • @stevehill6
    @stevehill6 4 ปีที่แล้ว

    Hi Robert, bought your plans and well into making this with (am I allowed to say?) a nod to Eric Schaefer's tweaks especially dust extraction. I am wondering about the four triangular braces on either side. Would it not be better - and also give better rigidity against the forces of a plunging router - if there were simply solid sides? I can't offhand see any reason not to do this. And construction would be simpler!

    • @OBrienGuitars
      @OBrienGuitars  4 ปีที่แล้ว +1

      Eric has made some nice improvements to the jig indeed. Anything you or others want to do to improve upon the design is fine with me.

  • @AudioAtmos
    @AudioAtmos 8 ปีที่แล้ว

    Great demonstration. Thanks!

  • @klijnsmitguitars2979
    @klijnsmitguitars2979 8 ปีที่แล้ว

    Great videos always, brother.

  • @jmber27
    @jmber27 8 ปีที่แล้ว

    Cool jig, thanks for sharing.

  • @olgoat52
    @olgoat52 8 ปีที่แล้ว

    I'm sure it is obvious to everyone else but if you were doing a dovetail, you would have to shorten up that mortice and tenon so it was not so close to the back binding right? Flare on the dovetail cuts deeper? Thanks as always for the great video.

    • @OBrienGuitars
      @OBrienGuitars  8 ปีที่แล้ว

      +olgoat52 You are correct and also the dovetail is not 7/8 inch deep.

  • @brisimmons105
    @brisimmons105 5 ปีที่แล้ว

    Great video, thanks! Question for you - I have a gap underneath my fingerboard where it goes over the soundboard from the neck angle. I haven't glue it on yet, and I'm wondering how you deal with this?

    • @OBrienGuitars
      @OBrienGuitars  5 ปีที่แล้ว

      Due to the neck angle on the guitar you will have a slight gap from the neck joint to the soundhole. On my guitars it is about 1/64th. If this is not acceptable for you then you might take a look at my buddy Jeff Jewitt's Perfect Neck set online course. He has no gap at all when setting the neck. obrienguitars.com/courses/perfect-neck-set

    • @brisimmons105
      @brisimmons105 5 ปีที่แล้ว

      @@OBrienGuitars Thanks for the reply! This is my first build and my angles weren't as exact as I'd like so my gap is a bit larger.

    • @RobMonty248
      @RobMonty248 5 ปีที่แล้ว

      @@brisimmons105 there blues creek guitar videos to cover the fitting of the dovetail after its cut... important lesson there, im new as well,, good luck, they on youtube...

    • @RobMonty248
      @RobMonty248 5 ปีที่แล้ว

      @@brisimmons105 watch?v=FNcbA1P95KE&t=1194s (this is one of that series, i dont think its the first one) This is a must know, i know this much. haha

  • @robbaggett1127
    @robbaggett1127 5 ปีที่แล้ว

    Do the adjustments or initial set you made change when you actually bolt on the neck? With such fine tuning it seems everything will change from the tension and force of tightening the bolts to secure the neck!

    • @OBrienGuitars
      @OBrienGuitars  5 ปีที่แล้ว

      usually no. If the fit is good then putting bolts on doesn't change the equation.

  • @juliantaylor7663
    @juliantaylor7663 5 ปีที่แล้ว

    when you get up to gluing the fretboard over the body will the fretboard bend a little as you clamp it in place because of the neck angle?

    • @OBrienGuitars
      @OBrienGuitars  5 ปีที่แล้ว +1

      yes, the board is flexible and I then level and radius it after it is attached to the neck.

  • @macguitars
    @macguitars 7 ปีที่แล้ว

    Hey Robbie, it appeared when you were setting up the jig with the aluminum rod on the face of the body that the initial lineup is flush with the body. Which would lead me to believe that when you created a larger gap to accommodate of the saddle location it would then leave a gap under the fingerboard once the neck was mounted causing drop off. Do you create an angle between the edge where the neck mounts and the sound hole on the body itself or do you leave the drop off

    • @OBrienGuitars
      @OBrienGuitars  7 ปีที่แล้ว +1

      There is about a 64th to a 32nd falloff on the fretboard extension as it transitions from the neck joint to the soundhole. This is easily leveled from the top side of the fretboard after it is attached. This is why I install frets only after the fretboard is attached to the neck and the neck attached to the body.

  • @robertvrijenhoek2531
    @robertvrijenhoek2531 17 วันที่ผ่านมา

    Since LMI is gone, does anyone plan to market this jig or CNC plans?

    • @OBrienGuitars
      @OBrienGuitars  17 วันที่ผ่านมา +1

      I am working on it

  • @petervanrooij2181
    @petervanrooij2181 4 ปีที่แล้ว

    By using the guide-bushing you take this differnce in diameter into account when making the mortise. By using the guide-bushing on the tenon, would not the tenon be to big than for the mortise. The mortis will be somewat smaller than the template and the tenon would be somewhat bigger than the template. Then, howcome they fit?

    • @OBrienGuitars
      @OBrienGuitars  4 ปีที่แล้ว

      They fit because the measurements on the templates already take this into account.

    • @petervanrooij2181
      @petervanrooij2181 4 ปีที่แล้ว

      @@OBrienGuitars Right, thanks for the reply. So, the measurements of the bushing and the bit are fixed. I will try and make this jig. But maybe I should make the templates as well, as to fit my router and bushing. Thanks again for replying.

    • @OBrienGuitars
      @OBrienGuitars  4 ปีที่แล้ว

      @@petervanrooij2181 You are correct. The guide bushing and bit sizes are the same for both the mortise and tenon. The template size changes so that everything fits after cutting. Good luck. Plans are available via my site. obrienguitars.com/plans

  • @j.4wr3l14n0.f.c
    @j.4wr3l14n0.f.c 6 ปีที่แล้ว

    Obriado por compartilhar seu conhecimento.

    • @OBrienGuitars
      @OBrienGuitars  6 ปีที่แล้ว +1

      de nada e obrigado por assitir.

  • @deanleavitt1646
    @deanleavitt1646 7 ปีที่แล้ว

    Will this jig work with ukulele bodies and necks? Maybe larger bushing with smaller bit diameter. Do you have a better suggestion?

    • @OBrienGuitars
      @OBrienGuitars  7 ปีที่แล้ว

      Many folks have adapted it to work with ukes.

  • @luthierpianco
    @luthierpianco 4 ปีที่แล้ว

    Obrien boa noite, gostaria de comprar esse Jig, como posso fazer pra compra-lo?

    • @OBrienGuitars
      @OBrienGuitars  4 ปีที่แล้ว

      Pode comprar da LMI - www.lmii.com/obrien-neck-joint-jig-templates/2757-o-brien-neck-joint-routing-jig-choose-dovetail-or-straight-mortise-and-tenon.html

  • @ronsommers8814
    @ronsommers8814 4 ปีที่แล้ว

    Oh sure! I bought the old version - had to make my own box - and this one is sooo much better! LOL

  • @micheleparisi547
    @micheleparisi547 6 ปีที่แล้ว

    Hi Robert, i write from Italy, i tried to buy this jig in your website.....but is very difficult, probabily i wrong something, could you write me here a link to buy it, i would to pay with paypal.

    • @OBrienGuitars
      @OBrienGuitars  6 ปีที่แล้ว

      I do not sell the jig.I only sell plans to make the jig. obrienguitars.com/plans
      LMI sells the pre-made jig. www.lmii.com/products/tools-services/rout/shape/drill/obrien-neck-joint-jig-templates

    • @micheleparisi547
      @micheleparisi547 6 ปีที่แล้ว

      Thank you

  • @MrDiaupaca
    @MrDiaupaca 8 ปีที่แล้ว

    👏👏👏👏👏👏👏👍🏻👍🏻

  • @stevecarver4906
    @stevecarver4906 8 ปีที่แล้ว

    it certainly takes the pain out of that joint

  • @woofwoofwoofie
    @woofwoofwoofie 8 ปีที่แล้ว

    "until you hear a crack"... Dude, that's just cruel. :-P

  • @arlitdavid2923
    @arlitdavid2923 4 ปีที่แล้ว

    its not simple.

  • @orisguitars7315
    @orisguitars7315 3 ปีที่แล้ว

    Don’t forget you need a router template bushing adapter for your router like I did. Waiting for parts