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RepRapBCN
User Manual
2) Download: Nowadays there are lots of online repositories where people share their own models with the rest of
the community. As an example, the following ones are mentioned:
• www.grabcad.com – Repository specialized in engineering, design and architecture models. Not always in STL
format but in the original format used by the creator.
• www.thingiverse.com – Repository marketed by MakerBot, contains a great deal of STL models and customiza-
tion tools.
3) Digitalization: Paralel to the development of 3d printing, home scanning technology is evolving at high speed. In
this regard, it’s worth visting Autodesk’s own www.123dapp/catch. In there, free tools to obtain digital models from
pictures taken with a photographic camera are provided.
Other existing methods are: specialized softwares that combine the use of projectors and cameras or 3D scanners.
Editing and repairing a .STL file
As it has been mentioned before, a file in STL format is not always in the best condition. Some of the most common
errors are:
• Holes. The model must be unclosed, with no holes present.
• Faces orientation: An STL model is composed of flat faces. Their orientation must be the same and outwards. In other words,
it cannot be that some sides point in one direction and some in other, they all must be facing outwards. This usually happens
by accident when working with modeling software.