My 3d printer (CTC Twinmaker) is placed upstairs which makes a lot of noise and I dont mean motors etc. just vibrations which are passed to room under printer, I have used foam (typical white foam used to secure 3d in box) and that worked very well, but printer now shakes a lot because of not hard and perfectly flat surface.

Do you think that can make any damage to printer, because I just have printed calibration cube and its same quality as prev, so what do you think ?