Notes from a Mechanical Designer - Page 24 of 42 - A site for disseminating know-how and information learned in mechanical design

: [Preservation Edition] Difference between knock pins (dowel pins) and parallel pins and how to use them.

2025/10/19 Knock pin/Parallel pin, Method of positioning, Design method

Today's note is about the difference between knock pins (dowel pins) and parallel pins and how to use them. I researched and summarized the difference between knock pins and parallel pins and how to use them. If you are looking for a positioning pin from now on, please refer to ...

: Study and Calculation of Torsional and Bending Strength of Ball Screw Shaft Terminals

2024/1/20 Ball screw

Today's memo is about "consideration and calculation of torsional strength and bending strength of ball screw shaft ends. In the selection of ball screws, some people may be surprised that they do not calculate the strength of the shaft end. In the past, I have discussed the ball screw axial allowable ...

: Good news] We found out in the chat. Even if the manufacturer doesn't have it, MISUMI may carry it.

2020/10/9 Misumi

Today's note: "MISUMI may carry some items that are not available from the manufacturer. The other day, I was researching couplings that connect a servo motor to a ball screw, and I found that the manufacturer I was aiming for (...

: How to calculate allowable load for "buckling, tension, and compression" in ball screw axial direction

2024/1/20 Ball screw

Today's note is on how to calculate the allowable loads for "buckling, tension, and compression" in the ball screw axial direction. There are two steps in using this calculation form. When pushing a heavy object at an arbitrary acceleration, the ball screw ...

: What is TRIZ, a method for efficient invention?

2025/10/19 TRIZ, The story of machine design

Today's note is about "What is TRIZ, a method for efficient invention? Have you ever heard of TRIZ? In the development of ...

: LM guide load calculation for vertical conveying (2 rails, 2 blocks)

2026/1/2 LM Guide/Linear Guide /Linear Shaft

Today's note is about "LM Guide Load Calculation for Vertical Conveying (2 rails, 2 blocks)". I have previously shared the calculation sheet for horizontal use, and today I will share the load calculation sheet for vertical use of the LM Guide. The LM Guide ...

: Bending R design method and instructions for sheet metal, supplemental

2025/10/19 Drawing/Writing, Design Information

Today's note is on "How to design sheet metal bending R and how to instruct and supplement it". Sheet metal parts are used in machinery and everywhere else.　Today, I'd like to explain how to design a bending radius for sheet metal and the information surrounding ...

: How to distinguish between metered in and metered out on the outside of the spicon.

2025/8/3 Air Cylinder/Spicon

Here is a note on "how to tell the meter in from the meter out of a spicon by its appearance". It's a problem when you have a mix of speakons in the field.　Which one is ...

: Setting range of bolt tightening torque

2025/11/16 Input design

Here is a note on "bolt tightening torque setting range". Generally, when bolt tightening torques are listed in drawings or procedures, the range is set by multiple tightening torques ...

: [Review] 2019 RAPiD Design at Solidworks.

2024/6/17 Solidworks, Misumi

Today I would like to leave a review of the actual use of RAPiD Design (inCAD Components) provided by MISUMI at SolidWorks. ...

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