The idea is not from me. I just redesigned the part linked since it has errors in the file and I wanted some changes. One part should now do what two parts did before:
The target of the part is to remove the play (side-wards) in between the screws and the plastic which keeps the bed in position. In addition to that the springs are pressed quite a bit more which results in higher tension.
You need to print three of these for one Davinci 1.0 Pro printer.
I printed in ASA, but ABS and PLA should be fine to.