Educator's Exchange Call for Tutorials

Sometimes e-NABLE devices and techniques can be understood better with additional tutorials beyond what the original creator provided.  The Community can help out by providing additional instruction.  Some of these will be quick and easy and others may take a bit more.  Of course, full credit will be given to anyone who can add a tutorial and a link will be added here.

Call for Tutorial #1:
Sometimes STL files need to be modified to remove some material from a palm or even remove entire fingers in order to fit the recipient.  Could someone make a tutorial, perhaps in Meshmixer, of how to do this?  Please include how to smooth surfaces so we don’t have sharp or rough edges.

Call for Tutorials #2:
Please create safety videos for tools used in 3D printing and fabrication.