First go to https://jlcpcb.com Create your account download Gerber_Andy1.3ver-2024_edited_2024-03-10_.zip https://bbmpulser.org/wp-content/uploads/2024/12/Gerber_Andy1.3ver-2024_edited_2024-03-10_.zip Then upload this Gerber zip file to the site https://jlcpcb.com Folow Product Detail to select correct parameters for your PCB let me know if you have any questions support@bbmpulser.org