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Machine Designer's Note

: For Beginners] Elements of Motor Selection Difference between Incremental and Absolute

2025/8/23 Motor

Here is a note on the difference between incremental and absolute motors, which can be divided into two types of motors. For beginners in mechanical design, incremental motors are a factor in motor selection ...

: The basic method of determining the length of bolts and screws is to use a length that can be screwed in 1.5D to 2D.

2025/11/16 Input design

Today I would like to talk about "how to determine the length of bolts and screws should basically be 1.5D-2D threaded length. I know this is a bit sudden, but this is the conclusion. The length of bolts and screws should basically be 1.5D-2D screw-in ...

: Reasons and countermeasures for large dimensional change of MC nylon due to temperature and water absorption

2025/11/9 Material Dimensions/Material Properties, Resin

Today's note is on "Reasons and countermeasures for the large dimensional change of MC nylon due to temperature and water absorption. I will share with you some episodes I have actually experienced and what you need to understand when dealing with MC nylon and ...

: How to draw a part drawing with measurement in mind

2025/8/15 check of drawing

Here, I would like to write a memo on "how to draw a parts drawing with measurement in mind" by using an actual episode "as a result of having a woman who can inspect parts do the drawing" in parts drawing. &nbsp ...

: 生産技術と製造技術の違いは？仕事内容や役割分担を網羅解説

2025/12/29 Production Technology/Manufacturing technology

ここでは　「生産技術と製造技術の違い」　についてのメモです。多くのウェブサイトでは生産技術と製造技術の違いを曖昧に解説していますが、実務においては両者の境界線を明確に引く ...

: Flat washer dimensions (New JIS, Old JIS)

2025/5/31 Screw/Bolt

The table below shows "the dimensions of old JIS flat washers, which are widely distributed, and the dimensions of new JIS flat washers. The table below lists the dimensions of flat washers in the old JIS standard sizes that are widely distributed and the dimensions of flat washers in the new JIS standard ...

: Difference between Type 1, 2, and 3 magnet wires (electric wires)

2024/6/10 Electric wire/Magnet wire

Today's memo is about "The difference between magnet wire (electric wire) type 1, 2 and 3". This summarizes what I studied the other day when I was working on a product that uses magnet wire. What is magnet wire? Magnet wire is ...

: Torque required for rotary table (index table)

2024/6/6 Index table related

Today I will make a note on "Basic Calculation of Torque Required for Rotary and Indexing Tables".　 Here is the torque required to rotate a rotary table, whether electric or hydraulic, at the desired speed ...

: CCW and CW (difference and meaning of motor rotation direction)

2025/8/23 Motor

Here is a note on "CCW and CW (the difference and meaning of the direction of rotation of motors)" that you may see during the selection process of motors. The difference between CW and CCW came up the other day when I was teaching design.

: How to proceed with a mechanical design job that ends up taking a lot of time.

2023/12/3 The story of machine design

Today's note is about "How to proceed with a mechanical design job that ends up taking a lot of time". This article is undergoing a major rewrite. In mechanical design work, to make new things happen

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