After months of designing, 3D printing, aluminum casting, CNC machining, and countless hours in the workshop, this homemade two-stroke engine finally came to life.

In this video, I show the complete process of building a custom engine from scratch.

Starting with CAD models in SolidWorks, I 3D printed every casting pattern, created aluminum castings using the lost PLA process, machined every critical component, built a custom crankshaft, manufactured the cylinder and cast-iron liner, and finally assembled the entire engine before its very first start.

Every major engine component was designed and manufactured specifically for this project.

This video covers:

• SolidWorks engine design
• 3D printed casting patterns
• Lost PLA aluminum casting
• CNC and manual machining
• Crankcase manufacturing
• Cylinder manufacturing
• Cylinder head machining
• Cast iron cylinder liner
• Custom crankshaft
• Engine assembly
• First engine start

If you enjoy engine building, machining, foundry work, CAD design, or homemade engineering projects, consider subscribing for future videos.

Thanks for watching!