Parametric Book (1:18 scale)
myminifactory
Outfit your figures with a proper library with this parametric book. Also included are a variety of premade versions- small, medium, and large. The file is set up to have a cover thickness of 0.8mm, which seemed about right for integration with 1:18 scale figures. If that's what you want, just use the customizer and set the width, height, and thickness values to whatever you want. If you want to make them fit with other scales, download the scad file and modify the cover_thick variable.
With this file you will be able to print Parametric Book (1:18 scale) with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Parametric Book (1:18 scale).