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ENGINEER.48

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Active mechanical designer / Mechanical design experience [20 years] I provide design know-how cultivated through practical experience and real information that is not found in textbooks and is useful in the field.

Normal tolerance: JIS B 0405 and JIS B 0419 (1991 excerpt)

2025/10/13    

  Here is a note on "Ordinary Tolerances: JIS B 0405 and JIS B 0419 (1991 excerpt)" required for mechanical drawing. Ordinary Tolerances Ordinary tolerances are to be applied when not otherwise noted in the drawing ...

Expanded Metal (Standards, Dimensions, Weight)

  Here's a memo on "Expanded Metal Standards, Dimensions, and Weights." Expanded Metal JIS Standard The JIS symbol for expanded metal is JIS G 33511 (1987), and expanded.

How to rename all or partial files at once in SolidWorks

2024/11/18    

  Today's note is on "How to rename all or partial files at once in SolidWorks". In this article, I'm going to show you a pack-and-go batch renaming of all the component file names of a large assembly you've designed or other ...

Frequently used "Fits and tolerances (JIS B 0401 excerpt)

2025/11/13    

  ここでは、 利用頻度の高い穴(または凹形状)と軸(または凸形状)に使われるはめあい公差(JIS B 0401 抜粋) をまとめています。   公差単位は μm となります。 寸 ...

Piping Thickness Schedule (Sch) Calculation Method

2025/10/12    

  Today's note is on "How to Calculate Piping Thickness Schedule (Sch)". The Schedule of Piping (Sch) is a standard for the thickness (wall thickness) of piping. As shown in the table above, the schedule

Carbon steel pipe STS sizes for high-pressure piping

2024/10/5    

  今日は「高圧配管用炭素鋼管STSのサイズと規格」についてのメモです。   一般に「STS」と呼ばれる配管のサイズと、この材料を使う際に押さえておきたいポイントをメモしておきます ...

Carbon steel pipe SGP size list for piping

Sizes and Standards of Carbon Steel Pipes SGP for Piping

2024/10/5    

  今日は「配管用炭素鋼管SGPのサイズと規格」についてのメモです。   一般に「SGP」と呼ばれる配管のサイズと、この材料を使う際に押さえておきたいポイントをメモしておきます。 ...

Basic note on connection method wafers for piping, flow meters, etc.

2025/10/13    

  Today's article is "Basic Notes on Wafers, a Connection Method for Piping, Flow Meters, etc.". This article is a summary of my studies on wafers. Wafer Type What is Wafer Type Quote: OVAL Corporation "Wafer

Carbon steel pipe size for pressure piping (STPG370/STPG410)

2024/10/5    

  Today's note is about "carbon steel pipe size for pressure piping (STPG370/STPG410). Pressure piping (carbon steel pipe) sa for use under about 350℃, generally called "STPG

About the self-locking gear mechanism

2024/6/9    

Today's note is on "Gear Mechanisms with Self-Locking Effects". In machine design, we consider mechanisms such as elevating or rotating heavy objects in one vertical direction, but at that time, there is a risk that the objects to be transported may fall or rotate backwards, which can be dangerous.