Page 324 - Making things move_ DIY mechanisms for inventors, hobbyists, and artists

Chapter 10 Projects 301

15. Continue up the aluminum rod. Slide on a 1/2 in shaft collar, one of the plastic sail
holders, and then another 1/2 in shaft collar. Pull the lower shaft collar up so it’s
not resting on the top of the base and secure it to the rod with its set screw.
Then pinch the plastic sail holder with the shaft collar on top of it, and secure the
assembly with a set screw. When you rotate the whole assembly by the shaft,
it should rotate smoothly, and the sail holders should rotate with the shaft.

16. Cut out three sails for your wind turbine to catch the wind. There’s no right
answer here, and you have a few different slots in the sail holders, so just use
scissors to cut the aluminum flashing in a length you think will work. Then cut
1/2 in tabs into each corner to slide into the slots. Bend over the tabs to secure
the sails (see Figure 10-16).

FIGURE 10-16 Bend the tabs in the aluminum
flashing over to secure the sails.