The Pneumatic engine

This is the same thing as the original but with links and a ball bearing

Parts
1/8 NPT quick connects-https://www.amazon.com/CEKER-Connect-Fittings-Pneumatic-Connectors/dp/B07VY1C6KD/ref=sr_1_2?crid=1372KVVO3P00&dib=eyJ2IjoiMSJ9.EZQPxQ4ipBvBKNvSbJVWp_osejY6InWsuJlqcx5Zs6QC39yo7OPZf-J2F-Nx3L-tF2dN1wR17EsC1JyY-PFj0EptuLngyhnHDKcG8dsiPFHrDWIpNDlNBU3aN92QbL6Lo34NbYcPTZ1MBC-lugkuyES6JHpr81rQjtJ9fPfuFyfLCLTj1u8GkZY_KN0FzAq6MMuGlDFNjZdknwvaeNvivenzXu2RVZgzL4XkIRaXMJixVp4Y5-DuMpdSU0btHEQnL0n89MAPuy4ee-VGyV-XXIFe4JbbcAs3IGaWtHlHGtM.bO5JkKmvBS3kesTTjygIqfiURwqhwgDK_5ne8-eI8f0&dib_tag=se&keywords=1%2F8%22%2BNPT%2Bquick%2Bconnects&qid=1728130378&sprefix=1%2F8%2Bnpt%2Bquick%2Bconnects%2Caps%2C231&sr=8-2&th=1
1/4'' air hose-https://www.amazon.com/DERNORD-Tubing-Flexible-Clear-Vinyl/dp/B0D2CR3322/ref=sr_1_2_sspa?crid=3N8XNRI7IXC3&dib=eyJ2IjoiMSJ9.AVExdqqycqE_mjAqEXLsyZ__lNrlXlpR5xkIi7BJzp8HmniaikPBjo11MH_yJaE-ZS89bu1d2-fzcFqmD50-9l_XBJ4nDEdSSyBmPBzg3d2zdWE26xZ4zS34ZYFEY72ztnHyHAWpjJSaNS5ZfUiFczScRjPkoupuiT1Eh2CBKr9wMWbOWhYOqrx4bSwsHITVd2sE96JviSesxiUrk4hA5vPVUVWnM4h-NpHPsr0zWMo.1GL5XlOAT2wrBsxnaNgyeNZcI-bFAv6A6jdforOwZaw&dib_tag=se&keywords=1%2F4%27%27+tubing&qid=1728130551&sprefix=1%2F4%27%27+tubing%2Caps%2C112&sr=8-2-spons&sp_csd=d2lkZ2V0TmFtZT1zcF9hdGY&psc=1