If you haven't checked out Google's 3D warehouse, there are some really cool 3D model examples that I think would be of interest to all of you.
Surveyor's Measuring Tape
Surveyor using Topcon Robot
Surveyor Work Truck (more examples of Surveyor Work Trucks)
Géomètre-Topographe et Trimble S8
Système TOPOX 1983
ZEISS Elta 4
Leica TCR in action
These examples have been created by some very talented designers. Do you have any 3D models that you'd like to share for inspiration? Please share them below.