Check this out!
Very nice, but more weight can be gotten out of those gears if you really wanted to. 
What safety factor were they determined to have?
just curious:who did the drawings, a student or engineer?
I’m not sure of the safety factor at the moment. I am only partially involved with build. I’ll try to find out.
The website is broken
I believe it was one of the mentors (it may have been a student though), but wait until you get to see the work of our student drafters.