Some members of my team who were finding it hard to run inventor had some luck running
Alibre. It's not free, there's only a 30 day free (but fully functional, iirc) trial. But maybe have your PR team can secure you a sponsorship
--Ryan
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FRC 2046, 2007-2008, Student member
FRC 1708, 2009-2012, College mentor; 2013-2014, Mentor
FRC 766, 2015-, Mentor