xTool P3 Bookcase Files
Here are the files I used for the book case build. I do need to clean them up a little bit but posting them now because someone is asking. You need to ensure you size it to the dimensions of the board your are using and then center the shelf cutouts to ensure they are correct on both sides. you might want to cut them on a scrap cutoff first before your large boards to ensure a snug fit. also use calipers to ensure your openings are correct based on the thickness of the wood (little differences matter here)