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Jack Kojiro

Computer & Information Technology, Electrical & Electronics

Studied computer science and electrical engineering with focus on embedded systems and digital technologies.

About Jack Kojiro

Jack Kojiro studies Computer & Information Technology and Electrical & Electronics. He works with embedded systems and software development, contributing to educational content across multiple disciplines including mechanics and digital systems design.

Focus

💻 Software Development
Embedded Systems
🎨 Circuit Design

📚 Education Contributions

Mechanics Of Materials

Lesson 2.2: Bending Stresses in Simple Beams

Analyzing bending stresses in cantilever robotic gripper jaws under grasping loads

Published: September 26, 2025

solid-mechanicsbending-stresscantilever-gripperrobotic-gripperflexural-formula

Lesson 2.3: Beam Deflections and Stiffness Analysis

Predicting elastic deformations in CNC spindles under cutting loads for precision control applications

Published: September 21, 2025

solid-mechanicsbeam-deflectionCNC-spindleelastic-deformationprecision-control

Lesson 2.4: Combined Bending and Torsion Loading

Analyzing multi-axis loading in robotic wrist joints experiencing simultaneous bending and twisting forces

Published: September 19, 2025

solid-mechanicscombined-loadingrobotic-wristequivalent-stressmulti-axis-loading

Lesson 2.5: Composite and Built-up Beam Systems

Analyzing bending stresses in hybrid CNC machine beds with aluminum-steel composite construction

Published: September 18, 2025

solid-mechanicscomposite-beamsCNC-bedtransformed-sectionmulti-material

Lesson 1.3: Compound Bars in Multi-Material Systems

Analyzing linear actuator rods with steel-aluminum segments to understand load sharing and deformation compatibility

Published: September 18, 2025

solid-mechanicscompound-barslinear-actuatormulti-materialload-sharing

Lesson 1.4: Thermal Stresses and Strains

Analyzing thermal stress development in heated piston-cylinder interfaces and extruder head systems

Published: September 18, 2025

solid-mechanicsthermal-stresspiston-cylinderextruderthermal-expansion

Lesson 1.5: Torsion of Circular Shafts

Analyzing torsional stresses and angular deformation in Geneva mechanism crankshafts and rotating mechatronic systems

Published: September 17, 2025

solid-mechanicstorsionGeneva-mechanismcrankshaftshear-stressangular-deformation

Lesson 2.6: Principal Stresses and Failure Criteria Analysis

Applying Mohr's circle analysis for critical stress evaluation in mechatronic joint design and failure prediction

Published: September 17, 2025

solid-mechanicsprincipal-stressMohrs-circlefailure-analysismechatronic-joints

Lesson 2.1: Shear Force and Bending Moment in Beams

Analyzing shear force and bending moment distributions in robotic arm segments under loading

Published: September 17, 2025

solid-mechanicsbendingshear-forcebending-momentrobotic-armbeam-analysis

Lesson 1.1: Introduction to Mechanics of Materials in Mechatronics

Understanding stress, strain, and material properties through the analysis of a crank-slider connecting rod system

Published: September 16, 2025

mechanics of materialssolid-mechanicsmechatronicscrank-sliderstress-strainconnecting-rod

Lesson 1.2: Simple Stress and Strain in Actuator Systems

Analyzing axial stress and strain in CNC actuator shafts, including material selection for precision positioning

Published: September 16, 2025

solid-mechanicsactuator-shaftaxial-stressmaterial-selectionCNC-systems

Chapter 2 Assignments: Structural Analysis in Mechatronic Systems

Comprehensive assignments covering shear force, bending moment, stress analysis, deflections, combined loading, composite beams, and failure analysis in mechatronic applications

Published: September 16, 2025

solid-mechanicsassignmentsstructural-analysismechatronicsbeam-analysisrobotics

Lesson 1.6: Thin-Walled Pressure Vessels

Analyzing hoop and longitudinal stresses in pneumatic actuator casings and pressurized mechatronic systems

Published: September 16, 2025

solid-mechanicspressure-vesselspneumatic-actuatorhoop-stresslongitudinal-stress
Spatial Mechanics

Lesson 2: Planar Transformations and Mathematical Foundations

Building 3D spatial mechanics foundations through 2D planar robot analysis using complex numbers and homogeneous coordinates

Published: September 26, 2025

spatial-mechanicsplanar-transformationscomplex-analysishomogeneous-coordinatesSCARA-robot

Lesson 5: Advanced Spatial Mechanisms Analysis

Complex spatial linkage analysis through humanoid robot hand design covering spherical joints, universal joints, and multi-finger coordination

Published: September 15, 2025

spatial-mechanicsadvanced-mechanismsspherical-jointshumanoid-roboticsmulti-finger-coordination

Lesson 6: Computer Simulation and System Integration

Real-time spatial mechanics simulation through multi-robot coordination systems covering numerical methods and distributed control integration

Published: September 14, 2025

spatial-mechanicscomputer-simulationmulti-robot-systemsnumerical-methodsreal-time-control

Lesson 3: 3D Rotation Matrices and Spatial Transformations

Mastering spatial orientation control through 6-DOF robot arm programming using rotation matrices and transformation composition

Published: September 13, 2025

spatial-mechanics3d-rotationstransformation-matrices6dof-roboticseuler-angles

Lesson 1: Kinematic Joints and Degrees of Freedom in 3D Systems

Analyzing joint types and constraint relationships in modular robotic systems through systematic DoF analysis

Published: September 12, 2025

spatial-mechanicskinematic-jointsdegrees-freedommodular-roboticsconstraint-analysis

Lesson 4: Elementary Matrix Methods and Link Modeling

Systematic kinematic modeling of parallel mechanisms through Stewart Platform analysis using DH parameters and elementary matrices

Published: September 12, 2025

spatial-mechanicsmatrix-methodsstewart-platformDH-parametersparallel-kinematics
Applied Mathematics

Linear Algebra in Applied Mathematics

Understanding matrix operations and their applications in solving real-world problems

Published: September 15, 2025

linear-algebramathematicsmatrix-operationsapplied-mathematicsengineeringproblem-solving

The Art of Simplification: Spherical Cows and Model Building

Understanding the power and limitations of abstraction in engineering and applied science through the lens of the iconic "spherical cow" model.

Published: September 15, 2025

modelingsimulationapplied-mathengineeringabstraction
Modeling And Simulation

Inverse Kinematics: Math vs AI Approaches

Compare traditional trigonometric solutions with neural network approaches for robotic arm control and motion planning

Published: September 15, 2025

modelingsimulationroboticsinverse-kinematicsaineural-networks

Simple Pendulum Modeling

Build a mathematical model of a simple pendulum and create an interactive simulation to understand oscillatory motion

Published: September 15, 2025

modelingsimulationpendulumphysicspython

Spring-Mass System Simulation

Model and simulate spring-mass systems to understand vibrations, resonance, and damping in mechanical systems

Published: September 15, 2025

modelingsimulationspringsvibrationresonance
Planar Mechanics

Lesson 4: Acceleration Analysis and Dynamic Forces

Understanding acceleration polygons and inertial forces through Geneva mechanism indexing system design for packaging and assembly automation

Published: September 15, 2025

planar-mechanicsacceleration-analysisgeneva-mechanismdynamic-forcesindexing-systemsautomation

Lesson 5: Cam-Follower Systems and Motion Programming

Understanding cam design principles and follower motion laws through CNC machine tool cam-driven feed system optimization

Published: September 15, 2025

planar-mechanicscam-designfollower-systemsmotion-programmingCNC-systemspressure-angles

Lesson 6: Force Analysis and Mechanism Synthesis

Understanding static force analysis and mechanism synthesis through multi-DOF robotic manipulator system design and actuator optimization

Published: September 15, 2025

planar-mechanicsforce-analysismechanism-synthesisrobotic-manipulatorsactuator-sizingvirtual-work

Lesson 1: Kinematic Joints and Constraint Analysis

Understanding joint types, degrees of freedom, and constraint relationships through modular robotic arm design using Grübler's equation

Published: September 15, 2025

planar-mechanicskinematicsjointsDOFgrublers-equationrobotic-armsconstraints

Lesson 2: Position Analysis of Planar Linkages

Understanding vector loop equations and geometric constraints through four-bar linkage suspension system optimization

Published: September 15, 2025

planar-mechanicsposition-analysisfour-bar-linkagevector-loopsgeometric-constraintssuspension-systems

Lesson 3: Velocity Analysis and Instantaneous Centers

Understanding velocity polygons and instantaneous centers through crank-slider engine and compressor mechanism analysis

Published: September 15, 2025

planar-mechanicsvelocity-analysisinstantaneous-centerscrank-slidervelocity-polygonsengine-design

🛠️ Product Development

Siliconwit Io

Getting Started with SiliconWit.IO

A simple introduction to connecting industrial devices with SiliconWitIO

Published: September 15, 2025

siliconwit-ioindustrial-iotdevice-connectivityautomationtutorialgetting-started

Contribution Stats

31
Total Contributions
2023
Member Since
Tokyo, Japan
Location
30
Education Contributions
1
Product Development

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