
adjust the 10" height we set earlier (Figure
Ii
).
If the Lid component isn’t activated, activate it
by clicking on it in the Browser. The base will
become ghosted (Figure
Jj
). Again, in sketch
mode, click on Create→Project/Include→Project,
run the mouse over the top face to select the
perimeter and click OK. A sketch will be projected
onto the top of the envelope, with purple boundary
lines (Figure
Kk
). Then select it and click on the
Flange tool. You might want to change some of
the default rules, such as make the lid thicker
than the box. Then click OK to turn it into a flat
flange piece. You don’t need the air envelope
anymore, so feel fr ...