Obviously TUG 2020 didn’t happen.
Revisiting this again.
BlockSCAD project is at:
https://www.blockscad3d.com/community/projects/1213467
Here’s a slightly tweaked OpenSCAD file:
Design into 3D_ Pencil Box.zip (1.2 KB)
and a Carbide Create file:
Design into 3D_ Pencil Box.c2d (196.6 KB)
(depending on workholding that may need to be adjusted to have tabs)
Written up at:
I’ll have to rework the TeX code to support the new JSON file (the .c2d file was made by importing as exported DXF), but this will make the 8th project for the book, and I’ve a quick variation which I’ll be repurposing as the 9th, then I’ll just have to do one more and finish the book.