Doorstop for Indoor/Outdoor Carpet

It's a doorstop that doesn't slip on low, dense, carpet... unlike the two different commercial doorstops that we had been trying to use in my lab.

Instructions

The spikey points get printed facing up, but rather obviously face down into the carpet in use.

Ours was printed on a MakerGear M2 with cheap black PLA at 20% fill, which is more than enough to produce a very solid stop. A few days after posting this, one of my students gave this a real stress test: attempting to force a stopped door, the stop didn't move but a slight dent was made in the plastic. The slight dent is totally harmless, but no doubt a little heavier fill would have prevented even that....

Category: Household