MECHANICAL ENGINEERING PORTFOLIO
I'm Jimmy, a mechanical engineering student who designs, builds, and tests mechanical and electromechanical systems.
Explore my projectsSELECTED WORK
01 — 03
SolidWorks assembly01 / 03 · ELECTROMECHANICAL DESIGN · 2026
A working dispensing system that combines custom FDM-printed parts, off-the-shelf hardware, motor control, and tray-position feedback.
Develop a remotely operated feeder with scheduled dispensing, while integrating the mechanism, electronics, and a practical assembly.
Designed and fabricated the mechanism, selected hardware, integrated the controller and sensors, and assembled the prototype circuit board.
Added an anti-rotation tab to support gearbox reaction torque, Hall-effect tray feedback, and improved fastener access. Further refinements identified include food flow and hopper stability.
BUILD. TEST. UNDERSTAND.
When the software gave confusing readings about the motor’s direction, I used an oscilloscope to see the electrical pulses from its motion sensor. These two traces helped me check what the motor was telling the controller.
That investigation helped shape the final design: a magnetic sensor locates the tray, while the motor’s sensor checks for movement.
02 / 03 · ANALYSIS & EXPERIMENTAL VALIDATION
Compared analytical predictions, linear static FEA, and physical testing of FDM-printed PLA beams to investigate failure loads and stiffness.
FAILURE LOAD · BEST-MATCHING SPECIMEN
Less than 1% difference in failure load for this specimen. Stiffness showed larger discrepancies.
Derived bending and deflection equations using Macaulay’s singularity functions and implemented predictions in MATLAB.
Used effective isotropic properties as a simplifying approximation while considering FDM anisotropy and orientation-dependent strength.
Examined material assumptions and fixture compliance to investigate stiffness discrepancies. A close failure-load result does not establish accuracy for every response.
FROM THE PROJECT REPORT
Follow the cantilever study from analytical predictions to physical evidence.
Free-body analysis, shear and moment diagrams, and a singularity-function derivation establish the analytical foundation before numerical modeling.
Source: Cantilever Beam Bending Stress Validation Report · p. 19
The Live Script evaluates beam behavior across a range of loads using the specified geometry and effective material properties.
Source: Cantilever Beam Bending Stress Validation Report · p. 23
Maximum principal stress visualization from the report’s linear static analysis. The modeled response is compared with physical evidence.
Source: Cantilever Beam Bending Stress Validation Report · p. 5
Post-test specimen photographs document the printed beam’s condition. End-view evidence provides a closer look at the printed layers.
Source: Cantilever Beam Bending Stress Validation Report · p. 9
Inspect the specimen end view ↗Report · p. 16
Recorded force data captures the loading sequence and pauses for deflection readings. The negative sign reflects the instrument’s force direction convention.
Source: Cantilever Beam Bending Stress Validation Report · p. 29PRACTICAL DESIGN · 2024
Designed and FDM-printed a clutch alignment tool in SolidWorks for a 2007 Honda Civic. Verified its fit through successful transmission installation without alignment-related rework.
ABOUT ME
I study mechanical engineering at California State University, Sacramento, with interests in mechanical design, structural analysis, and thermal-fluid systems.
Since September 2026, I have been a Formula SAE member with Hornet Racing at Sacramento State, working with the team to build the frame. My independent automotive work has developed my approach to diagnosing faults, testing explanations, and verifying repairs.
As a Deaf engineering student and Deaf interpreter, I value clear documentation, accessible technical discussions, and thoughtful communication.
BS Mechanical Engineering
California State University, Sacramento
AS Electrical Engineering
American River College
Formula SAE · Hornet Racing
Frame subsystem
Tau Beta Pi
Engineering honor society
ASME
Associate Member
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