I have remixed this toilet paper holder so that it can be built into a recessed toilet.
The model isnt perfect, but it does the job really well. As you can see in the pictures the result is pretty nice :)
I did buy the bottom insert to make it look more premium. example: https://sanitairkamer.nl/sanigoods-rio-inbouw-reserve-rolhouder-inzetstuk-zwart-mat-sk80728.html?gad_source=1&gclid=CjwKCAjw59q2BhBOEiwAKc0ijUaomPqSxDpGMQJcaSzzATR0PcVijnWvU6bvC3aJCGjGTZzwPKhHtBoCPWUQAvD_BwE
This one is for 13cm diameter toilet paper.
PLA or PET-G should work fine for this, as you will not be able to reach it when its build in I would probable recommend PET-G. I've glued the different parts to make sure they last.
The author remixed this model.
I have remixed this toilet paper holder so that it can be built into a recessed toilet.