Fully Articulated Floating Hinge Print In Place Cat Scratch Deterrent.  Bends through 360 degrees so will fit curved corners, and right angles.  I wanted the same design for my bed as its edges are curved and didn't want a piece of plastic sticking out.  Of course you can select a color match with whatever furnishings you need.

If you are sick of kitty using your furniture as a way to sharper his/her claws, this is the answer (or was for me), didn't want to use spikes or anything too aggressive or it might graze humans or hurt the cats paws.

The slats in the design stop the cat running its claws down your furniture.

Can be fixed with a good double sided sticky tape, or screwed into place.

Nice and easy to print, the floating hinge works just fine on a Centauri with a “standard” print of 0.2 with a .4mm nozzle.

Its possible to print the design thinner, but the hinge will not work so well, however I have found removing it from the heated bed before its cooled will allow you to gently bend the pla (etc) into the shape you need.