UPDATE: Added a shorter version!!!
Taller version -> Pause at layer 676
Shorter version -> Pause at layer 461
This legs are good for improve the printing quality and for the ghosting effect. The printer will show less vibration.
You only need the original pieces and 4x M3 screw and 4x M3 hex nut.
Set the printing gcode to stop the printing at layer 676 or 135.4 mm height, with 0.2 mm layers. Put in the hex nut and resume the print!!
I used PLA.
Thank you, good printing!