I split the inner door structure, as advised, and it released the door lip. You can see how much it was warped by looking at the resulting gap when it was clamped to a piece of angle iron.
While I’m waiting for the epoxy to set, I decided to fill the large hole that AP sends the cats with. I plan on mocking up the door, clamping it in place, then making a narrower slot for the door to bolt to.
While I’m waiting for the epoxy to set, I decided to fill the large hole that AP sends the cats with. I plan on mocking up the door, clamping it in place, then making a narrower slot for the door to bolt to.