From the 5th to the 9 th of December 2022, the Portuguese partner, CEPROF – Centros Escolares de Ensino Profissional, Lda., hosted the 3D4AUTO Learning, Teaching and Training Activity (LTTA) for trainers in Espinho, Portugal. The mobility was hosted in ESPE, the VET School of Espinho, owned by CEPROF and, in total, including teachers, students, and members from the other teams, the mobility counted 8 teachers and educators face-to-face. In this mobility, within the project 3D4AUTO, a series of dynamic workshops that included good practices in the context of 3D printing modules were performed. These gatherings constitute considerable steps towards learning key competencies concerning 3D printing for VET trainers. During technical training sessions, attendees utilized 3D printers & scanners to learn modelling and printing techniques. VET teachers from 7 different countries had an opportunity to visit 3D research centres, establishments, and a VET school to observe how 3D printing technologies are put into practice. Teamwork and storytelling were promoted at the workshops in order to engage all participants.