
Editor’s note: Our Mind Upon Mind series is a nod to a 1937 Chips from the Chisel column (also featured in “Honest Labour: The Charles H. Hayward Years”), in which Hayward wrote, “The influence of mind upon mind is extraordinary.” The idea being there’s often room for improvement. To that end, we’ve asked you what else you have thought of, tried out and improved upon after building projects from our books.
Send us your own ideas! Email [email protected]. You can read more about the submission process here.
Today’s pick is courtesy of Dan Crow (danielpcrow.com). Thanks, Dan!
— Kara Gebhart Uhl

I often find it easier to mark my octagons on the ends of my leg blanks using this little guy instead of measuring and marking from the outside in.

He’s 1″ tall and makes a 1″-interior-diameter octagon. Tracing the outer diameter makes an octagon that’s roughly 1-3/8″.

The octagon marker allows me to scribe the interior finished octagon size and the outer octagon shape to use as a guide, all while holding it in place at the end of the blank.
Sometimes my blanks don’t have equal sides or are perfectly straight-grained from end to end, so this also allows me to fudge my octagon a little either way to get a perfect shape.

I had it printed using an online service called JawsTec. They used nylon (the cheapest option they offered). As I understand it, most 3D printers can use a .stl file to print stuff (and save money).
You can download the .stl file here.
— Dan Crow






