Hello Friend Mini Notebook (KPOP Demon Hunters)

Created by request! A commenter on my KPOP Demon Hunters Mini Notebooks suggested that the “Hello Friend” card Derpy delivers to Rumi would make a cute notebook cover. I agree!  

Features

This is a new cover design for the notebook collection I previously posted on MakerWorld. Specific features include:

• Flat, thin cover for a slim profile and filament-efficient print.
• Sturdy hinges that will not easily break when being lugged around by a child.
• Secure reloadable binding using only 3D printed parts (i.e., no elastic bands).
• Modular components that can be easily swapped out if one small part breaks.

For more information about the design of these notebooks, please check out Notebook / Journal Collection - Multiple Sizes.

Printing Instructions

The models are printed without supports. The hinge clips need to be printed vertically, and painted mouse ear brims have been added to improve adhesion. If you are worried about them dislodging during the print, you can change them to full brims, but note that this will be more tedious to remove from the interior edges of the clip.

The back cover on plate 2 uses five colors, so there is a pause command that provides the opportunity to manually swap filaments when the blue is finished.

• When starting the print, assign filament 1 (blue) and filament 5 (yellow) to the same AMS slot.
• The print will pause at the beginning of layer 11. At this point, the blue is finished, but it is still loaded in the nozzle.
• Resume the print and wait a few moments for the AMS to switch to a different color.
• Once the blue filament has been cut and retracted, you can safely remove it from the AMS and replace with yellow.

Note that the front cover only uses four colors, so these steps are not necessary for the other two plates.

Assembly

These mini notebooks will fit a small stack of half letter paper (5 ½ x 8 inches). If you only have standard letter paper, then you can simply cut it in half. Either way, the stack should then be folded to form a booklet.  The notebooks should also work fine with A5 paper (or A4 paper cut in half) if you trim away 8mm in width so that it is approximately 140x210mm. 

To assemble, attach the hinges to the cover, then align them with spine hinges and run a piece of filament through the holes. Detailed assembly instructions can be found in the included PDF.

Filaments

My example print used the following filaments:

• Sunlu Sky Blue, Yellow, and Magenta
• Panchroma Matte Cotton White and Charcoal Black

Please note that I do not recommend using silk PLA on the binding or hinge clips, because is it structurally weak compared to other forms of PLA.