How to Design Railway Speakers using 3D CAD Software
For this project, I used SelfCAD to design a 3D model of a railway speaker. I wanted to explore how everyday objects like speakers are built and how their design affects both their look and performance. Using SelfCAD made it easy to shape, adjust, and visualize the speaker in 3D. This project helped me understand not just the technical side of modeling, but also how design plays a big role in how products work in real-world environments.
Access the interactive tutorial at; https://www.selfcad.com/tutorials/204v542k1q2x3i662p5h154j4a3y4m124k6w
Once you’ve launched the editor;
From the 3D Shapes category on the toolbar choose cylinder; Set top radius to 2, Bottom radius to 2.
Tick the checkmark to finalize cylinder
From the 3D Shapes category on the toolbar choose cylinder; Set top radius to 6, Bottom radius to 3, height to 5, position y to 100
Tick the checkmark to finalize cylinder
Click to activate polygon selection; Click on highlighted region to select it
From the modify category on the toolbar choose extrusion; Set extrusion amount to 2.
Click add option to add next macro step; Set operation to scale, x to 8, z to 8, amount of copies to 2, Click apply button to apply extrusion
Tick the checkmark to finalize extrusion
From the modify category on the toolbar choose inset;
Tick the checkmark to finalize inset
From the modify category on the toolbar choose extrusion; Set extrusion amount to -2, Click apply button to apply extrusion
Click add option to add next macro step; Set operation to scale, x to -8, z to -8, amount of copies to 2, Click apply button to apply extrusion
Tick the checkmark to finalize extrusion
From the modify category on the toolbar choose inset; Set inset amount to 1.5.
Tick the checkmark to finalize inset
From the modify category on the toolbar choose extrusion; Set extrusion amount to 10.
Tick the checkmark to finalize extrusion
Click on highlighted region to deselect it
Click copy button to copy selected objects; Click scale on the toolbar; Set keep proportion to true, y to 9
Click rotate on the toolbar; Set z to -100.
Click move on the toolbar; Set x to 8, y to 85.
Click ‘x’ to close transformation panel
From the 3D Shapes category on the toolbar choose cube; Set width to 4, height to 1, depth to 8, position x to 3.9, position y to 95.5.
Tick the checkmark finalize cube
Click on highlighted region to select it
Click copy button to copy selected objects; From the modify category on the toolbar choose add thickness; Set thickness to -0.6.
Tick the checkmark to finalize add thickness
Click highlighted part on selection cube to turn off region selection
Click on mesh 8(1) to select
From the tools category on the toolbar choose copy offsets; Set operation to pivot, Click copy button to create copies.
Click ‘x’ to close copy offsets panel
Click on mesh4, 8 to select
From the edit menu on the top toolbar choose union, Click isolate button to isolate selected objects
As you continue honing your design skills, remember that SelfCAD offers a wealth of resources to support your learning journey. To deepen your understanding and explore more advanced features, consider checking out the interactive tutorials (https://www.selfcad.com/tutorials) available on the SelfCAD website. The tutorials page provides a treasure trove of guides, tips, and tricks that cater to designers of all levels.
More structured learning experience can also be accessed at the SelfCAD Academy (https://www.selfcad.com/academy/curriculum/), https://www.youtube.com/@3dmodeling101, and 3D Modeling 101 series (https://www.youtube.com/playlist?list=PL74nFNT8yS9DcE1UlUUdiR1wFGv9DDfTB). This comprehensive resource offers in-depth courses taught by industry experts, allowing you to master the intricacies of SelfCAD at your own pace
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