Fidget Spinner
Course: MEAM 1010
Date: February 2025
MEAM 1010 Introduction to Mechanical Design is a hands-on, project-based course that covers the fundamentals of the modern mechanical design process.
Overview
For this assignment we were tasked with designing and fabricating a fully functional fidget spinner using both laser cutting and 3D printing. The goal was to apply principles of mechanical design, CAD modeling, and fabrication techniques to create a personalized spinner.
CAD Design
I began by creating a 3D model of my fidget spinner on SOLIDWORKS. I opted for a triangular shape to ensure even weight distribution, which improves spin stability. The spinner was made as a gift for my grandfather, who’s favorite sports team is the Yankees, so I included their logo as a raster etch. I also added my name as a vector etch.
Laser Cutting
Once the design was complete, I saved my CAD file as a drawing and opened it in DraftSight. I used ¼” thick black PMMA (Polymethyl Methacrylate) as my material for the body of my spinner.
3D Printing
The next step involved designing and 3D printing the central button that allows users to grip the spinner comfortably. I used PLA filament and created a press-fit button that securely snaps into place through the center bearing hole. The design ensured ease of assembly and smooth operation.
Assembly
The final step was to assemble all the components. A standard ball bearing, provided for the assignment, was press-fit into the center of the fidget body, and then the 3D printed button was inserted through the bearing hole. The result was a smooth-spinning, customized fidget spinner with functional and sentimental value.
3D printed press fit button