Table leg spacer
thingiverse
I picked up a Roomba for my wife on Christmas and it wasn't quite able to fit under the coffee table. So, I quickly built a spacer that raised the table by 20 millimeters, just enough to make the Roomba fit smoothly. I chose PETG for this project but any material would likely work. The inside diameter of the hole is 30.7 millimeters.
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