(please give constructive comments about anything in this instructable...especially about the usage of terms)
This is a plate and wheel model, basically the IVT part works by moving the wheel nearer or further from the center of the plate. The nearer a point is to the center of the plate, the slower it moves and thus turns the wheel slower but with more torque. The CVT part is the fly wheel which "contracts" along its axis when spun and thus, moving the wheel further from the center of the plate.
due to some unknown problems, i am unable to add photo notes or embed my video, please bare with me while i try and fix this problem
oh, by the way, i am in the 13-18 category.
Alright, as pointed out by fellow user jj.inc:
"Actually, just for informational purpose, this is a CVT only, not an IVT. An IVT can output at such a low gear that there is no output at all. A ∞:0 ratio is not possible with this device, so it is a CVT which from ratio A:X to ratio B:X where X ≠ 0 can have infinite variance."
learn more about CVT and IVT by just google-ing it