• http://untitled.es/modulo-tuercas-openscad/
• http://untitled.es/caja-pulsador-arcade-openscad/

• http://asimov.depeca.uah.es/robotica/file.php/41/TuBot/Curso_OpenScad.pdf

Cilindro → cylinder (radio,altura,$fn=xxx)

traslate (x,y,z)