Theorbo "Live": Bending the first rib!

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  • เผยแพร่เมื่อ 25 พ.ย. 2024

ความคิดเห็น • 50

  • @t.e.1189
    @t.e.1189 2 ปีที่แล้ว +2

    Where can one find the earlier footage on facebook? Also, are there anymore videos following this. I want to build a lute and detailed videos on the construction are rare. Please continue to post more.

    • @benjaminkratchmer8124
      @benjaminkratchmer8124  2 ปีที่แล้ว +2

      I'll see if I can find a way to bundle them together and link them. More videos will be coming-- hopefully soon-- but unfortunately taking video and getting it trimmed up takes a lot of time! I'm finishing up a video about making a baroque guitar mold, and I'm considering doing an instructional series on a smaller instrument.

  • @ombelle5284
    @ombelle5284 3 ปีที่แล้ว +1

    Seeing this in live is so helpful. Theorbo making is quite a niche hobby to get into, and finding the appropriate litterature can be exhausting. I cant thank you enough for sharing this !
    Edit : if you could get into the process of acquiring the bending iron in the future, that would be so neat !

    • @benjaminkratchmer8124
      @benjaminkratchmer8124  3 ปีที่แล้ว

      I'm glad you enjoy these videos! This started as way to provide some entertainment during lockdown, but I also think there is value in videos of craftwork that are not accelerating a 120-hour process into 10 minutes. I hope to, in essence, video-blog the creation of this instrument with a lot of real-time explanation of each step even if there is some work done in between that gets sped up or is off camera.

  • @worldentropy
    @worldentropy 3 ปีที่แล้ว +2

    Great work. Would be really useful to publish a video detailing the making of the form, together with measurements which make it possible to make the form.

    • @benjaminkratchmer8124
      @benjaminkratchmer8124  3 ปีที่แล้ว +1

      I think I'm going to do some videos using a lute mold to explain some of this as well as how to carve a neck block.
      Once this instrument is farther along I will probably circle back and build a different mold to show that process again.
      Thanks for watching!

    • @SassyTesla
      @SassyTesla 3 ปีที่แล้ว +1

      @@benjaminkratchmer8124 BUMP. would love to see the mold, as i'm currently limited to making guitterns i'd like to start ribbing instruments!

    • @chrisvroberts
      @chrisvroberts 3 ปีที่แล้ว +1

      @@benjaminkratchmer8124 yes please! And thanks for this excellent video

  • @bearshield7138
    @bearshield7138 2 ปีที่แล้ว +1

    Thank you
    I will be back

  • @twokool4skool129
    @twokool4skool129 6 หลายเดือนก่อน

    Looks great. Why coat the mold in shellac instead of a spray poly or even a spray shellac, which would go 10x faster?

    • @benjaminkratchmer8124
      @benjaminkratchmer8124  6 หลายเดือนก่อน

      It's what I generally have on hand, it's fast to dry, and it's easy to recoat even after the form has been waxed and used. Spray shellac would work well, too.

  • @giocondaulloa1961
    @giocondaulloa1961 2 ปีที่แล้ว +1

    hola Benjamin ,sera posible que compartas los planos con sus respectivas medidas?

    • @benjaminkratchmer8124
      @benjaminkratchmer8124  ปีที่แล้ว

      I do not own the rights to these particular plans as they are not my own measurements. There are good working drawings available to purchase from the Lute Society. You can also buy measurements from many museums but be aware these are 'as is' and may require correction/interpretation to be working drawings for building from.

  • @giocondaulloa1961
    @giocondaulloa1961 2 ปีที่แล้ว

    como se puede conseguir los planos?

  • @Greebstreebling
    @Greebstreebling 2 ปีที่แล้ว

    Thanks for sharing this process. I've just started making a Baroque Lute from a plan. Just building the mould and good to look ahead here to cutting and forming the ribs. It would be interesting to know whether the rib material is flat sawn or quarter sawn and if it matters...

    • @benjaminkratchmer8124
      @benjaminkratchmer8124  2 ปีที่แล้ว +2

      Rib material is usually quartersawn unless using a wood where the figure is only seen on the flatsawn face. I've not done any side by side tests to compare, but in theory the quartersawn is more resistant to loss of shape and breakage around the curves than flatsawn.

    • @Greebstreebling
      @Greebstreebling 8 หลายเดือนก่อน

      @@benjaminkratchmer8124 Thanks for reply, I acquired some quartersawn yew and just starting to trial bend that :)

  • @Greebstreebling
    @Greebstreebling 8 หลายเดือนก่อน

    Bending the ribs is a skill that has to be acquired. I made a mould and cut out ribs, planed and scraped them to size. However, I've tried hard, and I'm not one to give up, but I can't get the ribs to bend into the correct shapes, so my Lute building project has sadly stalled.... :(

    • @benjaminkratchmer8124
      @benjaminkratchmer8124  7 หลายเดือนก่อน +1

      It takes some time to learn how the wood feels when it's ready to bend. What species, how thick, and what kind of iron are you using? I am sure your project will move forward again!

  • @NUMIDIA-202LTAM
    @NUMIDIA-202LTAM 2 ปีที่แล้ว

    Thank you for all that you share with us as an art of making lutes. I would like to know how can we locate the width of the soundboard. Where exactly on the soundboard is this width located?

    • @benjaminkratchmer8124
      @benjaminkratchmer8124  2 ปีที่แล้ว

      The width at the widest point can be found a number of ways. On more primitive instruments it is simply twice the highest point of the back, since they had regular hemispheres defining their shape. As the backs of lutes became more and more flattened the width was based on other geometric ratios-- I highly recommend reading the work Robert Lundberg did studying period instruments and laying out their shapes.

  • @hellomate639
    @hellomate639 ปีที่แล้ว

    How much play do you have to work with when doing this? I.e. maybe it isn't perfect, but then you tape/glue it together and it pulls it all together. How much give do you have, about?

    • @benjaminkratchmer8124
      @benjaminkratchmer8124  ปีที่แล้ว

      There is really no room for error, the tension created by pulling a gap closed becomes a multiplying error as you work around the body, so even if the joint doesn't fail it will create distortion in the shape of the instrument seasonally that can interfere with the action. If there are gaps it is better that they be hidden by the spacer than pulled closed. I think the overall tolerance on the joint is probably in the 0.05mm range if you want a predictable outcome, but obviously much coarser instruments exist!

    • @hellomate639
      @hellomate639 ปีที่แล้ว

      @@benjaminkratchmer8124 That is pretty tight!
      Say I'm making my first lute, and I keep things relatively simple, and it's just going to be my own instrument, I'm guessing I could get away with a bit better tolerance than .05... But I guess you also say use spacers.
      Could I also use some thin shavings of wood and hide glue to hide some of these gaps, especially as I get started on making my first lute? I'm assuming that my spacers will be pretty flat.
      I guess I'm also a little confused on how one controls getting a hollow-shaped rib vs. a flat rib.

    • @benjaminkratchmer8124
      @benjaminkratchmer8124  ปีที่แล้ว

      @@hellomate639
      It's a bit of a complicated answer, but I'll do my best:
      You can definitely get away with some gaps, the limiting factors are at what point they become numerous or large enough to structurally compromise the joint, and at what point they become aesthetically ruinous.
      For structural purposes many small gaps or a very long but narrow one are a greater weakness than a single bad place, since the glue joint is compromised more or less equally by any gap. As long as most of your joint is good, a few bad spots might be okay. I would offer you encouragement to strive for none, as on a simpler shape like a Renaissance or early transitional lute it is not so hard and patience will get you there.
      For aesthetic concerns, the spacers primary function is to help disguise little alignment problems and small gaps. The sweatshops in which historic lutes were made certainly did not achieve perfection on the vast majority of instruments! With a good contrasting spacer any gaps will appear as though they are extra width in whichever part is darker; in the case of dark ribs and light spacers you have a large margin for error! With light ribs and dark spacers you have only a small percentage of the spacer width before it is visually perceived as a varying width of the line. For this reason on a first instrument if you go dark spacers I would suggest something at the wider end of what is visually pleasing--1.2mm or so-- because it gives you a little more room to hide than a more typical 0.7mm spacer will.
      Ribs which have a convex, concave, or compound shape rather than a flat plane intersection are shaped by intentionally deforming the rib as you plane it, sometimes this is downward pressure in certain spots, sometimes it is slightly increasing or decreasing the bend as you pass it over the plane.
      I hope this helps!

    • @hellomate639
      @hellomate639 ปีที่แล้ว

      @@benjaminkratchmer8124 This is amazingly helpful. Thank you so much.
      I'll start with an early renaissance lute with darker ribs and lighter colored spacers!

  • @SassyTesla
    @SassyTesla 3 ปีที่แล้ว

    this is an excellent tutorial, i don't have much to complain about from this distance, your camera equipment seems to be fine lol

    • @SassyTesla
      @SassyTesla 3 ปีที่แล้ว

      sucks that yer phone died for this tutorial though :(

    • @benjaminkratchmer8124
      @benjaminkratchmer8124  3 ปีที่แล้ว +1

      The phone died doing what it loved, I hope.

    • @SassyTesla
      @SassyTesla 3 ปีที่แล้ว

      @@benjaminkratchmer8124 lol

  • @waelshooter6063
    @waelshooter6063 ปีที่แล้ว

    is the rib really from walnut wood ?
    it's very shaped like to mahogany wood

    • @benjaminkratchmer8124
      @benjaminkratchmer8124  ปีที่แล้ว +1

      Yes, it is! Walnut and mahogany have very similar pore structure, especially when the walnut is quartersawn like this.

    • @waelshooter6063
      @waelshooter6063 ปีที่แล้ว

      @@benjaminkratchmer8124 thanks for reply

  • @SassyTesla
    @SassyTesla 3 ปีที่แล้ว

    2 things: how thin did you cut that strip (i'm assuming between 1/16 and 1/8)? also did you do that dry? like no presoaking?

    • @benjaminkratchmer8124
      @benjaminkratchmer8124  3 ปีที่แล้ว +2

      These ribs are about 1.5mm thick when they are bent. Depending on the density of the wood used they may be a bit thicker or thinner.
      The bending is done dry, with material this thin the heat conducts quite well through the wood without the use of water.

    • @SassyTesla
      @SassyTesla 3 ปีที่แล้ว

      @@benjaminkratchmer8124 thanks for the reply! looking forward to more content, i'll be putting together equipment to get started soon, so these progress vids are pretty slick

  • @kelargo
    @kelargo 3 ปีที่แล้ว +1

    Maybe try playing those facebook videos with a screen recorder running, to capture the video to your pc, and then upload to TH-cam.

    • @benjaminkratchmer8124
      @benjaminkratchmer8124  3 ปีที่แล้ว +1

      I might be able to do that, and I really do wish I had video of the process of building the mould and carving the neckblock here on TH-cam.
      I might do a separate video of carving a neckblock for a different instrument.

    • @kelargo
      @kelargo 3 ปีที่แล้ว

      @@benjaminkratchmer8124 understand. I deleted my FB account. Swear I'll never to open one again. The noise level was too high for me. Look forward to your videos. Cheers.

    • @joshua2400
      @joshua2400 2 ปีที่แล้ว +1

      that could be a good idea, either way, Jesus Christ the good true sovereign king loves you my friends
      may you have trust in His goodness and care, He never will abandon or forsake you

  • @fettahelmesbahielmesbahi3434
    @fettahelmesbahielmesbahi3434 3 ปีที่แล้ว

    Good job brother...am from morrocco..you are prof

  • @TheSULTAN7777
    @TheSULTAN7777 2 ปีที่แล้ว

    can I know how much the thickness of the ribs please ? many thanks

    • @benjaminkratchmer8124
      @benjaminkratchmer8124  2 ปีที่แล้ว +2

      It depends a bit on the size of the instrument and the material chosen, but somewhere between 1mm and 2mm is typical. For this instrument they are 1.5mm.

  • @paulbecket7399
    @paulbecket7399 11 หลายเดือนก่อน

    !!! tuxedo kitty !!!

  • @leriolu
    @leriolu หลายเดือนก่อน

    It's a shame, I don't undersant any word you say. If you write a text below, i will understand.

    • @benjaminkratchmer8124
      @benjaminkratchmer8124  หลายเดือนก่อน

      You can enable TH-cam's automatically generated subtitles in the language of your choosing from the video playback settings menu. Hope this helps!