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+================================
+ Some objects I printed
+================================
+:CreationDate: 2009-09-07 15:32:20
+:Id: HW/makerbot/printed-objects
+:tags: - hardware
+       - 3dPrint
+
+The round 12-sided die
+======================
+
+A friend of mine, member of my D&D group, asked me, as soon as he
+discovered that I would get a 3-D printer: «can you print me the
+intersection of three cylinders?»
+
+New, the resulting object is not exactly easy to visualize, but it's a
+12-sided solid, where each side would be a square, were it flat; in
+fact, the sides are curved.
+
+Obviously there is no way to print an object similar to a sphere on
+the CupCake: we would need some support material. What we can do,
+instead, is to print a half-sphere; we print it twice, we glue the
+halves together, and we get a sphere.
+
+[% WRAPPER 'figure.tt' pic='img_0980' alt="half-die, from an edge" %]
+Half of the die, seen from an edge
+[% END %]
+
+[% WRAPPER 'figure.tt' pic='img_0981' alt="half-die, from above" %]
+Half of the die, seen from above
+[% END %]
+
+[% WRAPPER 'figure.tt' pic='img_0982' alt="half-die, from the side" %]
+Half of the die, seen from the side
+[% END %]
+
+[% WRAPPER 'figure.tt' pic='img_0983' alt="half-die, from the side and
+edge" %]
+Half of the die, seen from the side, looking at an edge
+[% END %]
+
+[% WRAPPER 'figure.tt' pic='img_0984' alt="half-die, upside-down" %]
+Half of the die, upside-down. It rolls well enough, after a little sanding
+[% END %]
+
+[% WRAPPER 'figure.tt' pic='img_0985' alt="half-die, from the top" %]
+Half of the die, seen from the top: it's a very good approximation of
+a circle
+[% END %]
+
+Sadly, the two halves have warped a bit during printing, and it will
+not be easy to glue them in such a way as to keep them "round".