Rats love to use toilet paper to nest in, so I made this for them to take what they need to play/nest with. It was designed for use with a critter nation cage.
Print 2 so that you can sandwich the toilet paper roll in between them.
It is designed to be used with one ¼-20 threaded insert melted into the hole on the bottom of both models. You can use a soldering iron for this. I used E-Z Lok TH-420-SV threaded inserts (9.4mm diameter, 7.5mm long).
No supports needed.
Then you can use a couple of 1.5 inch washers & a ¼-20 thumb screws to mount it on the top or side of the cage, inside or outside.
The author marked this model as their own original creation.