Quote:
Originally Posted by BurkeHalderman
We never did any official impact testing with it or stress analysis on the CAD file but i can say it's strong enough to withstand being sandwiched between two bots (that was our unofficial test, for fun  ) without bending at all. Weight is the biggest advantage to using a uni-body chassis though, as pictured it weighed 7lbs compared to our 2013 robot's frame at 20lbs, which was made from C-channel and extruded aluminum. We've since ditched the uni-body chassis concept as we found it to limiting, but it's still a pretty piece to display.
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We had an issue with being under weight with our bot & added like 9 or 10 pounds of steel to our bumpers (and we were still under weight)
Anyway, I would say our chassis last year took a lot of skill... Plus it's so holy, it could be a priest (sorry, couldn't resist the pun). Luckily, our 2 side chambers (that held our drive trains) that had the most holes, I tossed into our CAM model that we ran. Each face actually took 2 passes (one for the left & one for the right) as our CNC mounting base wasn't large enough. The other cross bars we drilled on our XY CNC Bridgeport.