Gripped Door Stop

This is a door stop I designed. The circle at the top of the door stop is suppose to be designed to act as a spring and create more pressure between the floor and and door while the gripped bottom holds the stop in place preventing it from sliding. The grip is angled and shaped in a triangular shape pointing towards the front of the stop to create the best grip. This door stop probably works best on carpet floors. I don't have a 3D printer to print this and test this design. If you do download and print it, send me feedback on how well it works and any suggestions to improve it. Thank you.

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https://www.shapeways.com/model/2144164/gripped-door-stop.html?modelId=2144164&materialId=27