How to Use Japanese Leather Knife

00:07:11
https://www.youtube.com/watch?v=tVTi42qjcRU

Résumé

TLDRThis video explains how to properly use a Japanese letter knife for leather crafting. The technique differs from Western styles because it aligns better with the natural angle of the human arm, which is not perfectly straight. Holding the knife relaxed with an upward thumb helps achieve accurate cuts. The Japanese letter knife is praised for its convenience, being used for both cutting and skiving leather with precision. The video also demonstrates finishing cuts with a clicking motion to maintain the shape of the material.

A retenir

  • 🔪 Japanese letter knives are used opposite to Western ones due to human arm nature.
  • 👐 Relaxed hand position helps achieve straighter cuts.
  • 🎯 Understanding knife angle is crucial for accurate leather cutting.
  • 🔧 The knife is versatile for cutting and skiving.
  • 📏 Proper technique ensures a clean, straight finish.

Chronologie

  • 00:00:00 - 00:07:11

    Sebakeng sena sa video, mongoli o hlahisa tšebeliso ea thipa ea makhasi ea Sejapane 'me o hlalosa hore na hobaneng mokhoa ona o fapaneng le oa Bophirimela. Hobaneng ha batho ba sebelisa thipa ka mokhoa o fapaneng ke hobane matsoho a batho ha a tšekame hantle joaloka mechine. Mongoli o boetse o etsa tlhahlobo e bonolo e bonts'ang hore matsoho a rona a tsamaea kantle hanyane ha re phahama, ke ka lebaka leo thipa e sebelisoang ka mokhoa oo, ho netefatsa hore e khaola ka sekhutlo se nepahetseng joalo ka ha ho hlokahala ka ho kuta makhasi.

Carte mentale

Mind Map

Questions fréquemment posées

  • Why do Japanese letter knives use a different style from Western knives?

    Because human arms are not straight like machines, the angle of the knife matches the natural arm position better.

  • How should I hold a Japanese letter knife?

    Hold it relaxed, with your thumb pointing upwards, letting the arm naturally extend.

  • Why is it important to understand the knife's angle?

    Understanding the knife's angle helps in making straight cuts while working with leather.

  • What are the uses of a Japanese letter knife?

    It is used as a leather cutter and for skiving, offering precise 90-degree cuts.

  • How do you finish a leather cut with a Japanese letter knife?

    Stop before the end and use a click motion to prevent bending or distortion.

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Sous-titres
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Défilement automatique:
  • 00:00:00
    okay guys today I'm going to show you
  • 00:00:04
    how to use a Japanese letter knife okay
  • 00:00:09
    a lot of guys wonder why do you use
  • 00:00:12
    knife this way not like this because the
  • 00:00:19
    object is here and if you use on the
  • 00:00:22
    flat side the knife like this you get
  • 00:00:25
    straighter edge yeah that's right
  • 00:00:27
    that is right too but in this video I'm
  • 00:00:31
    to show you why Japanese letter knife is
  • 00:00:35
    used the opposite of Western people okay
  • 00:00:41
    the answer is simple because human arms
  • 00:00:45
    are not as exactly as straight as the
  • 00:00:52
    oops wait okay
  • 00:00:55
    yeah human arms are not exactly as a
  • 00:00:58
    computer or a machine okay so right now
  • 00:01:02
    in front of your monitor please stand up
  • 00:01:06
    okay
  • 00:01:07
    and raise your arm to the front of your
  • 00:01:11
    monitor okay
  • 00:01:12
    go like this okay with the thumbs
  • 00:01:17
    pointing sky okay and hold your knife
  • 00:01:23
    very very relaxed motion okay now if you
  • 00:01:32
    watch the angle of the blade this is 90
  • 00:01:39
    degree okay because people are people
  • 00:01:44
    humans arm is not as in a lot like the
  • 00:01:48
    low robots okay if you hold your knife
  • 00:01:52
    and see okay okay human arms if you
  • 00:01:59
    raise your arm like this it's not like
  • 00:02:03
    this okay it's like this will show you
  • 00:02:08
    the ruler
  • 00:02:11
    okay loosen up your arm and just grab a
  • 00:02:14
    pen or anything just straight and raise
  • 00:02:17
    okay it's not straight okay it's
  • 00:02:22
    pointing upward
  • 00:02:24
    okay okay but you make more like oh well
  • 00:02:28
    I'm straight
  • 00:02:29
    no no just relax your arm and just fully
  • 00:02:33
    just raise your arm and then see okay
  • 00:02:37
    you tend to go the outer of the your
  • 00:02:43
    body okay same as you're right-handed
  • 00:02:45
    okay just relax you're on race okay your
  • 00:02:52
    arm your hand is pointing outward
  • 00:02:57
    that is why Japanese thread knife you
  • 00:03:01
    have to use the better side this side
  • 00:03:03
    okay this is flat and then this is
  • 00:03:08
    pebble side but if it's holding like
  • 00:03:11
    this
  • 00:03:12
    this makes the right angle okay so if
  • 00:03:20
    you are cutting the leather putting the
  • 00:03:24
    outward the leather
  • 00:03:27
    okay you could like this and then you
  • 00:03:30
    have a right angle on your leather
  • 00:03:35
    object okay some people go like in the
  • 00:03:40
    middle you have ably edge like this
  • 00:03:43
    that's fine not just like this okay if
  • 00:03:47
    have a dead flat surface like this if
  • 00:03:52
    it's good you can just do it but if
  • 00:03:55
    you're just slightly outward or inward
  • 00:03:57
    you have a very not straight edge to cut
  • 00:04:01
    so you have you just be you know used to
  • 00:04:07
    the angle of the knife you just practice
  • 00:04:10
    and practice if you just practice with
  • 00:04:12
    the knife that Japanese red knife is
  • 00:04:15
    very good because it's a so convenient
  • 00:04:20
    you can use this as a leather cutter and
  • 00:04:24
    and you can use as a skywalk okay and
  • 00:04:31
    it's very good with the 90-degree cuts
  • 00:04:35
    without Japanese life I'll show you a
  • 00:04:39
    minute
  • 00:04:45
    okay now just immerse my oh okay here is
  • 00:05:01
    the 9 degree cut but if you want to cut
  • 00:05:04
    this with the round knife you go like
  • 00:05:10
    this and this right you cut this part
  • 00:05:13
    this part but that's the loss of the
  • 00:05:16
    letter here's what I do okay without a
  • 00:05:22
    new ruler or anything like that I just
  • 00:05:27
    cut them and then at the end of it I
  • 00:05:32
    just collect this okay this motion
  • 00:05:48
    okay and then cut the final okay it's
  • 00:05:55
    very easy to finish the cut okay and for
  • 00:06:10
    example this is ship skin so it's
  • 00:06:14
    stretches very easily so if I cut all
  • 00:06:18
    the way through at the end you will Bend
  • 00:06:20
    you you see okay see that it's um it
  • 00:06:28
    just change the shape but if I just stop
  • 00:06:36
    here and then click like this you get a
  • 00:06:43
    straight okay just drag all the way if I
  • 00:06:50
    just drag all the way it's not so
  • 00:06:56
    straight as just um click motion okay
  • 00:07:00
    this is a good way of using Japanese
  • 00:07:04
    rattle knife okay thank you for watching
  • 00:07:07
    and see you next time bye bye
Tags
  • Japanese letter knife
  • leather crafting
  • cutting technique
  • human arm
  • knife angle