pic: Measure Thrice

[Alan Anderson]

Originally Posted by Richard

Three challenges:

1) Provide an alternate description of the solid using two words.

2) Describe a procedure for fabricating the solid.

3) Describe a procedure for modelling the solid in Inventor.

1: chisel tip?

2: Cut a 1" length of 1" rod. Mark a vertical diameter on one end, and a horizontal diameter on the other. Grind off material such that the ground faces become half-ellipses, so that the curved "end" touches the tip of the horizontal diamter and the straight "end" is the vertical diameter.

(It might be easier and/or safer to do the grinding first, then the cutting. It is also possible to cut the diagonals rather than to grind them off.)

3: Extrude a 1" circle, a 1" square, and the 1"x1" triangle. Intersect them all at right angles (e.g. cylinder along the x axis, square prism along the y axis, and triangular prism along the z axis).