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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.

Calculation of surface pressure on a plane

2025/11/13    

Today's note is on "Calculating Surface Pressure on a Flat Surface".  Surface pressure is the external force per projected area that is subjected to a load. The surface pressure is the external force per projected area subjected to a load.

What I researched and learned when drawing my first patent drawing

2025/8/15    

  Today, I would like to write a note about "things I researched and found out when I was writing my first patent drawing," which is very different from mechanical drafting.  The other day, I received a request to create patent drawings. I successfully delivered the first ...

Income processing, year-end adjustment, and tax return memo for children (under age 16) who are not covered by the plan

Income processing, year-end adjustment, and tax return memo for children (under age 16) who are not covered by the plan

2022/3/20    

  Today's note is about "Income processing, year-end adjustment and tax return memo for children (under 16 years old) who are not covered as dependents". I am self-employed so I file my tax return by March 15 every year. This year, I ...

How to buy a conveyor roller with pin holes on both ends of the shaft made by Makitec

How to buy conveyor rollers with pin holes at both ends of the shaft made by Makitec

2023/11/29    

  Today's note is titled "How to Buy Conveyor Rollers with Pin Holes on Both Ends of the Shaft Made by Makitec. I have previously designed a conveyor roller using conveyor manufacturer Makitec's conveyor roller ...

Flow Rate Measurement

Where to start when you first decide to measure flow rates?

2023/12/3    

  Today's note is about "where to start when you first decide to measure flow rate". I'm currently designing a unit that measures flow rate, and it's actually the first time I've designed a structure that measures flow rate ...

Allowable bending stress graph for springs

Allowable bending stress graph for springs

2022/4/11    

  Today's note is about "Allowable Bending Stress Graphs for Springs (Spring)".  In the calculation of compression springs, it is necessary to know the stress rate in order to find the maximum stress at which the spring can be used without breaking. The ...

Custom and edited property files for sale for SolidWorks beginners

Custom and edited property files for sale for SolidWorks beginners

2022/1/5    

  Today I would like to announce the sale of custom and edited property files for SolidWorks beginners. I am a mechanical design freelancer and as of 2021, I am a CAD software ...

Applying Loctite to a screw changes the screw's axial force.

Applying Loctite to a screw changes the screw's axial force.

2025/11/16    

  Today's note is about "Applying Loctite to a screw changes the axial force of the screw. Applying Loctite to a screw will equalize the frictional force. This frictional force ...

Piano wire (SWP-A, SWP-B, SWP-V) Tensile strength against wire diameter unit

Piano wire (SWP-A, SWP-B, SWP-V) Tensile strength against wire diameter unit

2022/4/11    

  Today's note is on "Tensile Strength of Piano Wire (SWP-A, SWP-B, SWP-V) per unit of wire diameter. Piano wire" used for compression springs, etc. is represented by the symbol "SWP" ...

How to remove "Unable to edit assemblies when importing intermediate files" such as STEP and IGES [SolidWorks].

2023/12/2    

  Today's note is about "How to remove the "Unable to edit assemblies when importing intermediate files" such as STEP and IGES. In SolidWorks since 2017 ...