• 1.Design technology
    • 1-1.The story of machine design
    • 1-2.About Automation
    • 1-3.Factory System
      • Clean Room
      • Nut Runner
      • Stack transport
      • Galvano Scanner
      • About contamination
      • Forklift related
      • Crane related
      • About Factory power supply
    • Mechanical Design|Basics
    • Trestle design
    • Jig design
    • Positioning foundation
    • Tolerance design
    • Input design
    • Welding knowledge
    • Analytical Strength|CAE
    • Safety design
    • Explosion-proof design
    • Thermal measures
    • Air circuit
    • Production Technology/Manufacturing technology
    • Processing|Foundation
    • CAD|General
  • 2.Design calculations
    • Surface roughness ・ Surface roughness table
    • Cycle calculation
    • Habitual sex moments
    • Strength calculation
    • Basic calculation (Other)
  • 3.Mechanical elements
    • Motor
    • Air cylinder
    • Security
    • Electric Cylinder / Single Axis Robot
    • Index table
    • Linear Guide Shaft
    • Ball screw
    • Robot
    • Conveyor
    • Bearings ・ Bearings
    • Oiles Bush
    • Cable bear
    • Spring design
    • Shock absorbers
    • Chain
    • Sensor
    • Light curtain
    • Toggle clamp
    • Other Mechanical elements
  • 4. Table of various dimensions
    • Hex Socket Head cap Bolt
      • Screw-Zagli dimensions
      • Screw head dimensions
      • Trash-avoiding caps
    • Screw and tap materials
      • Screw Pitch Lead
      • Tap hole under dimension
      • In Helisat downhole
    • Dish fir dimensions
    • Spring/ Flat washer
      • Flat washer dimensions (New JIS, Old JIS)
      • Applications of flat washers
      • Application of Spring washer
    • Nuts
      • Hex Nut Dimensions
      • Types of nuts
    • Key-Keyway
      • Keyway dimension table
    • Parallel Pin-Knock pin
    • Piping screw
    • Tool dimensions
  • 5. Material Characteristics/Dimensions
    • Physical characteristics
    • Aluminum
    • Stainless steel
    • Resin
    • Rubber/Sponge
    • Flat bar
      • About Flat Bar
      • About Black Skin
      • SS400-FB
      • SUS304-FB
      • SUS303-FB
      • SUS316-FB
    • Round and square bars
      • Polished steel bar
      • Centerless round bar
    • Square pipe
      • SS400(STKR)
    • Equilateral angle iron (Angle)
      • SS400
    • Steel plate and wire mesh
      • Expanded metal
      • How to call Jishaku
    • Plumbing
    • Types of steel
  • 6.Heat treatment/surface treatment
    • 6-1. Surface treatment
    • 6-2.Heat treatment
    • 6-3.Painting
  • 7.Drafting knowledge
    • 7-1.What is mechanical Drawing?
    • 7-2. How to write a drawing
    • 7-3.How to do a drawing inspection

Know-how learned in machine design - Information dissemination site

Machine Designer's Note

  • 1.Design technology
    • 1-1.The story of machine design
    • 1-2.About Automation
    • 1-3.Factory System
      • Clean Room
      • Nut Runner
      • Stack transport
      • Galvano Scanner
      • About contamination
      • Forklift related
      • Crane related
      • About Factory power supply
    • Mechanical Design|Basics
    • Trestle design
    • Jig design
    • Positioning foundation
    • Tolerance design
    • Input design
    • Welding knowledge
    • Analytical Strength|CAE
    • Safety design
    • Explosion-proof design
    • Thermal measures
    • Air circuit
    • Production Technology/Manufacturing technology
    • Processing|Foundation
    • CAD|General
  • 2.Design calculations
    • Surface roughness ・ Surface roughness table
    • Cycle calculation
    • Habitual sex moments
    • Strength calculation
    • Basic calculation (Other)
  • 3.Mechanical elements
    • Motor
    • Air cylinder
    • Security
    • Electric Cylinder / Single Axis Robot
    • Index table
    • Linear Guide Shaft
    • Ball screw
    • Robot
    • Conveyor
    • Bearings ・ Bearings
    • Oiles Bush
    • Cable bear
    • Spring design
    • Shock absorbers
    • Chain
    • Sensor
    • Light curtain
    • Toggle clamp
    • Other Mechanical elements
  • 4. Table of various dimensions
    • Hex Socket Head cap Bolt
      • Screw-Zagli dimensions
      • Screw head dimensions
      • Trash-avoiding caps
    • Screw and tap materials
      • Screw Pitch Lead
      • Tap hole under dimension
      • In Helisat downhole
    • Dish fir dimensions
    • Spring/ Flat washer
      • Flat washer dimensions (New JIS, Old JIS)
      • Applications of flat washers
      • Application of Spring washer
    • Nuts
      • Hex Nut Dimensions
      • Types of nuts
    • Key-Keyway
      • Keyway dimension table
    • Parallel Pin-Knock pin
    • Piping screw
    • Tool dimensions
  • 5. Material Characteristics/Dimensions
    • Physical characteristics
    • Aluminum
    • Stainless steel
    • Resin
    • Rubber/Sponge
    • Flat bar
      • About Flat Bar
      • About Black Skin
      • SS400-FB
      • SUS304-FB
      • SUS303-FB
      • SUS316-FB
    • Round and square bars
      • Polished steel bar
      • Centerless round bar
    • Square pipe
      • SS400(STKR)
    • Equilateral angle iron (Angle)
      • SS400
    • Steel plate and wire mesh
      • Expanded metal
      • How to call Jishaku
    • Plumbing
    • Types of steel
  • 6.Heat treatment/surface treatment
    • 6-1. Surface treatment
    • 6-2.Heat treatment
    • 6-3.Painting
  • 7.Drafting knowledge
    • 7-1.What is mechanical Drawing?
    • 7-2. How to write a drawing
    • 7-3.How to do a drawing inspection
鋼材のたわみ計算

鋼材のたわみ計算方法とエクセル(フリーソフト)

2026/2/15    Strength calculation

  ここでは 「鋼材のたわみ計算方法とエクセル(フリーソフト)」 についてのメモです。この記事では鋼材の支持方法に対して荷重を加えるとどれだけたわむのかを計算するシートをシェアしています。 ...

What I'm thinking about in order to finish a mechanical design job in the shortest possible time.

2020/9/20    The story of machine design

  今日は「機械設計の仕事を最短納期で終わらせる為に僕が考えていること」についてのメモです。   私の勤めている会社は機械設計事務所。様々な会社さんのお仕事をするなかで、もっともっ ...

List of fitting tolerances_1

About fitting (Tolerance table)

2025/11/13    Tolerance design, Drawing/Writing

  This section is a memo about fits, which are expressed together with dimensions in mechanical drawings. Basic information about fits and the fit tolerances that apply to commonly used parallel pins and bearings are summarized. Fits ...

The discomfort felt in the middle of the design process is real.

2023/12/3    The story of machine design

  今日は「お願い!違和感を感じたら言って!」と、つい叫びたくなってしまったことを書こうと思います。   仕事を振る側と振られる側の考え方の違いからくる効率悪化についての内容です。 ...

ねじの強度区分とはなにか。強度区分の考え方と一覧表

2025/11/16    Input design

  今日は「ねじの強度区分とはなにか。強度区分の考え方と一覧表 」についてのメモです。   ねじの強度とは何か、またそのねじの強度に対する区分がどうなっているのかを纏めています。最 ...

エア回路の接続確認をする為の資料

2025/3/23    Air circuit

今日は「エア回路の接続確認をする為の資料」についてのメモです。エア回路機器の選定をするにも、エア回路図を書くにも大変な「接続確認」の作業。今日はその作業を改善しようと作った資料が、とても使い勝手が良い ...

機械設計,つらい

機械設計の仕事をしていて辛い所

2023/12/3    The story of machine design

  今日は「機械設計の仕事をしていて辛いところ」についてのメモです。   今日は日々感じている機械設計の仕事で辛いと思えることをズラズラ書き綴ってみたいと思いますので   ...

図面を流用したらトラブルも流用するというよくある話

2023/12/3    The story of machine design

  今日は 「図面を流用したらトラブルも流用するというよくある話」 についてのメモです。   機械設計あるあると言いますか、フィードバックの重要性 について話そうと思います。 図面 ...

フランジに使う固定用Oリングのつぶし代・充填率の計算方法

フランジなどの平面固定におけるOリングのつぶし代・つぶし率・充填率の計算方法

2020/9/9    Oリング

今日は「Oリングのつぶし代・つぶし率・充填率の計算(フランジ固定・外圧・内圧)」についてのメモです。今日の記事は   フランジなどの平面固定におけるOリングのつぶし代・つぶし率・充填率の計算 ...

機械設計の仕事内容 ~製造装置編~

2020/9/20    The story of machine design

  今日は「機械設計の仕事内容~製造装置編~」についてのメモです。   製造装置を作る機械設計の仕事内容 機械設計士への入り口 製造設備設計士を目指すなら、こんな事を意識すると良い ...

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Engineer 48

  Active mechanical designer in Japan. I have been a mechanical designer for [21 years]. Currently. S-TEC It is a sole proprietor who works on various designs based on FA (Factory Automation) automatic machines under the shop name of "Factory Automation".

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  • 1] About Mechanical Design (71)
    •   [1-2] Design Methods/Design Techniques (25)
  • 【2】Machine calculation/ Strength calculation / Others (16)
  • [3] Tolerance design (4)
  • 4] Usage of Machine Elements/Calculations (145)
  • 【5】2DCAD/3DCAD/CAE (31)
  • 【6】 Material/ Material/ Processing/ Characteristics (63)
  • [7] Assembly drawing/ parts drawing/ writing (29)
  • [8] Production/Manufacturing/ Automation/ Mechanization (27)
  • [9] Processing related (12)
  • [A] JIS/Standard/Reference standard (13)
  • [B] Other Miscellaneous Notes (15)

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