We report on a practical example of an online engineering-related manufacturing course: a production course for CanSat, an extremely small satellite model. Conducting online manufacturing courses is an effective tool for technical education. To spread space technology education nationwide, CanSat courses are held via online conferences. For students, the kit and the fabrication manual for the CanSat course were improved; in addition, the work procedure manual and documentation for instructors were enhanced. For this course, students experienced preparing the educational kits and teaching the CanSat course themselves, practicing for the course through product preparation. In this paper, we summarize the results of the CanSat course from preparation to implementation, and propose improvements for future courses.