The Machining Colloquium is a Brazilian conference on machining, established in 1993 by the Laboratory for Teaching and Research in Machining (LEPU) at the Federal University of Uberlândia (UFU). Its primary goal is to bring together researchers to discuss both completed and ongoing projects, fostering networking and partnerships. While the conference attracts participants from various states, a significant presence of students and professors from Minas Gerais has been noted, likely due to the conference’s origins and its occasional hosting in the state. A demographic study was conducted through a questionnaire to explore these patterns. The analysis revealed that most participants are aged 31–40, suggesting a majority of graduate students or early-career researchers and professors. Males comprised 84% of attendees, and the ethnic distribution mirrored national undergraduate trends: 66% white, 28% pardo, 4% black, and 2% yellow. Finally, the state of Minas Gerais stood out for being responsible for the formation of more than 50% of the attendees, regardless of the degree. This was associated with both the geographical location and the impact of LEPU on the formation of human resources in machining research.