YouTube engineer @myengines2443 is developing a thermoacoustic Stirling engine designed for at-home construction using 3D printing technology. The project aims to create an open-source design that allows individuals to build their own power generation systems without expensive machinery.
@myengines2443 has been experimenting with fiber-reinforced high-performance filaments to determine their suitability for engine components. Current 3D-printed parts can achieve compressive strength of up to 12 bar or 175 psi with relatively thin wall thicknesses. The engineer uses 3D-printed components for all parts except those exposed to high temperatures in the heater section.
The thermoacoustic Stirling engine concept features fewer moving parts compared to traditional designs, making it more suitable for 3D-printed components. @myengines2443 currently uses homemade engines running on self-produced biogas to generate electricity and heat, supplementing solar power during low-sunlight periods.
The project remains in development, with the gas cycle not yet optimized and heat exchangers still in provisional stages. Future development plans include experimenting with different energy conversion methods, pressure charging, and using helium as a working gas to increase power output.