It is recommended to verify your digital model before save it in R: drive. Your design will not be printed on time if contains critical problems!
1. Run STL CHECK Modifier in 3ds Max. Try reducing the errors.
2. You may use third-party applications such as MESHLAB or NETFABB for the purpose (already installed on school computers).
* Take a look at following articles for details.
http://www.shapeways.com/tutorials/how_to_use_meshlab_and_netfabb
http://www.shapeways.com/blog/archives/312-Netfabb-is-an-awesome-STL-viewer-repair-tool.html
http://www.shapeways.com/tutorials/fixing-non-manifold-models
http://www.shapeways.com/tutorials/errors#fixing_your_file
