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Napier's Bones: Quickly Multiply, Wooden Style

Step 4Pencil in the Lines

Pencil in the Lines
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I tend to make mistakes when I do stuff. To avoid this, I draw everything in pencil first. I recommend this method.

On the small 3.5" piece, do not draw anything.

On one of the 9" pieces, draw horizontal lines at 1" intervals along one side.

For the other four 9" pieces, draw horizontal lines every 1" down the rod on each side. To do this most effectively, measure and make a small mark at each 1" interval on all of the sides; then, using scrap wood or other pieces as right angles, draw lines at each mark. Make sure your measurements are careful--you want the lines on each side to line up with each other!

You should now have 9 boxes on each side of these four bones (formed by lines and edges). Draw a diagonal line from the upper right-hand corner of each box to the lower-left hand corner of that same box. Don't draw a diagonal in the uppermost box for all pieces and all sides!
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I like sleeping far too much for my own good.