Page 323 - Making things move_ DIY mechanisms for inventors, hobbyists, and artists

300 Making Things Move

12. Before you continue up the rod, this is a good time to mount your motor. First,
cut the wires to about 8 in long and solder a set of four male headers to the
wires (just as in Project 6-9). Red and green should be next to each other on
one side, and blue and yellow on the other.

13. Remove the screws that hold the motor together. Use the longer M3 screws
from the shopping list to mount the motor from the back, on the underside of
the top disk. Sandwich an M3 washer and lock washer with each screw (see
Figure 10-15).

14. Slide the other gear onto the motor shaft and use the 5mm shaft collar to
secure it temporarily. Adjust the height of both shaft collars until the gears are
at the same height and mesh well. Now you can break out the epoxy putty
and secure the gears to their respective shaft collars.

FIGURE 10-15 Stepper motor mounted