Basic parameterized pen, with you name on a plate. Designed in FreeCAD The design can be found in this github repo: https://github.com/TecnoLab/Objetos-3D/wiki/Bol%C3%ADgrafos-personalizados We use this pen in the initial session of the Breakers program, sponsored by the Orange Foundation https://github.com/TecnoLab/Curso-fabricacion-digital-Breakers/wiki