This is a simple riser I have designed to allow my roborock S8 to climb to a height of 2.4 cm.
Glue it together with superglue and tape it to the floor.
Needs around 90g of filament and 1,5h of printtime.
NOTE:
Make sure the superglue is dry before taping it to the floor! Do not use too much double-sided tape in case you want to remove the riser one day.
EDIT:
Changed the dimensions on this model to make it work more properly. ive also added a solid works file so you can make it to your individual height.