Sorry for the all the silly questions, I usually prefer to think a lot and buy a little. In the ballscrew designs for shifting your gantry around, would it possible to dampen vibrations in the thread by attaching a free moving block with bearings in either side of the gantry?

Lets say you have a 3m long screw:

Frame -weak spring - dampening block - gantry - dampening block - weak spring - frame


When moving the gantry would come into contact with dampening block and just shove it along in front of it compressing the spring, as the gantry moves back the spring moves the block back into it's 1m position.

As the dampening block is connecting your thread to your linear rail would this set up allow you to dampen the movement of the thread or would it just go horribly wrong, would too much friction be added?