This pencil holder organizer was designed for the promotional video of Colorfabb & BCN3D Technologies collaboration: https://www.youtube.com/watch?v=J9OPKR-2ZKg We have upload 2 versions, one for dual extruder printers and the other one for printers with only one extruder: V1. For Dual Extrusion printers --> You will found two STL files: - BCN3D_DUAL_PenPencilHolder_Body - BCN3D_DUAL_PenPencilHolder_Top&Bottom V2. For printers with only one extruder --> You will found only one STL: - BCN3D_PenPencilHolder The pen holder of the images and the video was printed with the BCN3D Sigma and with Colorfabb materials, Copperfill and Woodfill. Once printed has been post-processed for a stunning finishing. Check out this video for learning the procedure of post-processing any 3D printed piece made with Copperfill or Bronzefill: https://www.youtube.com/watch?v=aQpnoQRfTKk We encourage you to print it and share a picture on the social networks with the hashtag #bcn3d. And see who prints it better!