As my senior design team and myself did for our final project in Mechanical Engineering school. The company that sponsored us were more then happy to supply us with some of the parts. They gave us an engine and fabricated parts for us as we engineered them. They also gave us the goal that the mower was to be 26" push mower.
That was it, we did the rest. they were so stoked to see an actual working mower, instead of just drawings.
We had a semester to do this work! So naturally there are shortfalls, the deck needed adjustments as the blade sat too high in the assembly. We would need to have made wheels for the rears as you can see in some of the pics.
But the transmission was imported from France and it is a CVT type trans!
The bbc is belt driven due to blade tip speed we had to slow down for regulations. let me tell you this sucker is heavy!
It was a lot of fun to build for sure!! Any questions let me know. its been about 4 yrs since I have done this. Just found the pics!!!