Selective pet doorstop

thingiverse

We had to keep our dog from getting into the room where cat litter and food is stored. So I built a doorstop that securely keeps the door open so the cats can pass through while the dog pushes with all her force. I designed this doorstop not to change the door or its frame, nor require drilling holes in the walls. It also had to be easily removed and repositioned. This is tailored for our specific situation, but it might serve as a starting point for others who are facing the same challenge. We included the Moment Of Inspiration source file so it can be easily customized. Instructions This design is very easy to print, with just one condition - ensure that the flat side faces down on the printer bed without any support. The design may need adjustments according to your door and desired opening. I printed this design using an Ultimaker 2 at a 0.1mm layer height, a 50 mm/s print speed, and 25% fill density.