A few gearbox questions

[coreyjon]

After replacing somewhere between 4 or 5 drill gearboxes last year, I decided to come up with a way to remove the clutch (only to find out that the white papers already had a awesome paper on doing just that). We had a gearbox that did the same thing as yours, combine the drill, and cim motor together, if I remember correctly, the output rpm's where around 222 (or so). I was in charge or building the gearboxes last year, and now this year again, I am building a prototype of a 4 speed automatic(and a variable high/low 8 speed automatic) transmission for testing before the season. After last years season was over, I must of designed 6 different gearboxes utilizing just the drill motor, and cim, no drill gearbox (just had to find .7 mod gears), but After visiting Clarkson - and crashing in JVN's room (thanks for the couch man), and many hours of Mario cart, did he reveal to me, pic-design, and there awesome selection of .7 mod gears. Now I have a notebook filled with designs, ideas, concept drawings, but my team wants to try a 4 sped automatic that another team designed, but then I added a final stage, one with a 1:1 ratio, and one with a 3:1 ratio for the ultimate pushing power. The only control the driver has is high, or low, the transmission will shift between the 4 gears as needed to optimize motor efficiency. So, I'm pretty excited about this design. But, we still do not know what new motor(s) will be available this year, along with what challenges we will be faced with this year.