mesh density:

- results from the same smoothing operations performed in meshlab on the same initial mesh can result in different meshes. hausdorf distance between the surfaces will be virtually zero, but the element shapes, etc. can be different. febio may have convergence issues or stress concentrations due to the way some element is oriented. we wont be able to know if it is due to the elements or due to the mesh density. adds a level of uncertinaty, and also makes it impossible to exactly reproduce the model. 

fmc - using same smoothing procedures results in a hole, vcg 0.27 used

new plan (protocol deviation): take the smoothed mesh from each, iso parameterize and re-mesh the smoothed surface to different mesh densities. Those results are at least reproducible. This is also easier. 
important to note though that although the meshes are getting denser, they are only as detailed as the smoothed mesh from the model development phase - ie a denser mesh does not include any more "detail" than the intial smoothed model. 

using script transfer_med_groups.py, the new stls are meshed and the med groups are transferred from the med files used in the model development phase onto the new stl files.