I'm working on a new frame design for my mill and have been doing some analysis to understand how stiff its going to be and to optimize the design. I've been looking to get a reference on how stiff some other designs are and recalled seeing a research paper where they had created an FEA model of a Haas mini-mill. Unfortunately I can't seem to find that anymore... or possibly I imagined it.

Has anyone come across it? Alternatively, does anyone have any data for the stiffness of other mills?