When I assembled my MK2S I intended to add dampers but was disappointed to find that the y axis stepper was only attached with two screws. After running the i# for a few weeks and getting tired of the y axis noise I decided to find a way to install the damper.
I created a plate interface in Fusion 360 to connect the y axis mount to the damper. The plate is 3mm thick.
I had to use two m3x5 screws to attach the damper to the stepper. I also had to go through the spares bag and use an m3x12 screw and m3 nut to attache the plate to the topmost mounting point.
It is a tight fit but I haven't seen any interference between the button head screw and nut. Here is a view from the top.
I also added a damper to the x axis. I just needed two m3x5 screws to install the damper to the stepper but two of the already installed screws attached the damper to the frame.
I printed the part at 100% infill for added strength.