Treadmill - Neighbor Complaints

So I drew another complaint from my downstairs neighbor last night (he left a note).

He asked that I not use the treadmill after 10p. My solution is to try to engineer a solution so that he just doesn't hear me.

My plan is to buy 2 pieces of plywood, seperate them by foam and then use automobile coils between such that the springs absorb the kinetic energy. In fact, I'm going to go here in a bit and try to find something that will work. The potential problem is affixing the springs so that they don't slip (I don't want to go flying off of the treadmill.

I wouldn't go to this nth degree, unless there is great value for me. I don't want to constrict the hours I can use the thing, because it's such a valuable device. Of course, one solution is to simply move to a downstairs apartment, but then I would come up against a host of new problems: 1) Lack of satellite space for Direct TV; lack of storage (due to potential of theft) for my bikes. So, all in all, I'm going to need to try to engineer something.

I'll be checking auto zone here shortly :-).

k