This is a simple cover to use with spiral bindings. I tried to match the 4:1 ratio for US spirals and it worked well on the tests I did.

Included is also the scad file because I wanted to learn/do a customizer.

You can add title, but currently only two fixed lines. If you download the scad file you can emboss/raise the text, that option doesn't appear on thingiverse's customizer yet.

TODO: use actual math to generate the role pattern instead of weird measurements taken from actual binders.

D-Bot

No

No

0.5

Doesn't matter

You shouls be able to print the covers with 1 or 2 mm. If you choose to emboss the title, it will be embossed in 1mm, so account for that when deciding the cover thickness (anything less than 1 mm will mean the title will simply go through the whole thing).