Here's a STEP version of the field model used in the
FTC Block Party Robot Virtual World. It's not perfect: it was originally developed for the game, so it imports as a Surface feature, and the dimensions aren't exactly right (about +/- 1 inch). It might be enough to get you started, though.
In the past, PTC has released
CAD versions of the FTC field. Not sure when or if this will be available this year.
Cheers,
__________________
FRC 2046, 2007-2008, Student member
FRC 1708, 2009-2012, College mentor; 2013-2014, Mentor
FRC 766, 2015-, Mentor