Blender Tutorials  include over 50 individual video tutorials; see Getting Started and Modeling.  Also the Blender User Manual is online 

Sketchup online videos  only a few free videos here. 

Learning 123D Design YouTube channel 

How to use MeshLab & NetFabb for fixing your model 

Email 3dprintingclub@oregonstate.edu for more information.  

You can learn more about the club on their website.