I remodeled my office with "nicer" painted floors and didnâ€™t want my favorite desk chairâ€™s caster wheels leaving imprint marks upon the floor.
In order to prevent marking the floor due to the direct contact of the chairâ€™s wheels I designed some foot pads / boots for them.
On each foot pad I placed a felt furniture pad on the underside, thus preventing scuffing the floor.
Yes, the boot prevents the wheel from rolling, but that was a fair tradeoff and actually part of the design for me.
I designed the boot in the free version of Google Sketchup and a large design goal was to solve the problem with a minimal amount of material.
The final model took my MakerBot about 30 minutes to print each boot, which I still think is too long for the purpose. I'd like to see a simpler solution that prints under 10 minutes on my configuration, but currently I've printed out what I need so don't really care about futzing around with further adjustments. Sorry, but it's the truth :)
This boot fits caster wheels which are 50mm in diameter, 50mm wide and with a 20mm gap between the two sides of the wheel.