Crane+Project!

__What is a Crane__?
Cranes are lifting machine, generally equipped with a winder (also called a wire rope drum), wire ropes or chains and sheaves, that can be used both to life and lower materials and to move them horizontally.

**__What can use__.**
200 popsicles motor gears

**__How they are made__.**
=__ Motors __= A crane motor is often exposed to extreme weather conditions and is also the subject to high operational requirements. They have to withstand a lot, from high humidity, salty air and high wind speeds while ensuring a high overload capacity and a wide speed control range
 * __Step 1__ - ** Lay two Popsicle sticks vertically on a flat surface. They should be parallel and far enough apart to put a thread of spool between them. Place one spool between the sticks so that the ends of the sticks are even with the outside of the spool of thread. Then glue them in place, which will be the top of the arm of the crane.
 * __Step 2__ - ** Cut the front off of the cereal box. Measure the Popsicle sticks from the previous step against the edge of the box, and cut two slits along the top, front edge. The crane will be inserted into these slits in a subsequent step.
 * __Step 3__ - ** Insert a pencil into the center of the second thread spool. The pencil should fit snugly, so the spool turns when the pencil is turned. Add glue as necessary to firmly attach the pencil to the spool. Set the spool inside the box with the pencil ends extended over the sides of the box. The spool should turn freely when the pencil is turned.
 * __Step 4__ - ** Glue toothpicks across both Popsicle sticks in a ladder pattern. Repeat pattern on the opposite side, and glue in place. Set aside to dry completely. Once dry, insert the bottom of the sticks into the previously cut slits on the cereal box. Place the sticks at a 45-degree angle to the bottom of the box, and glue in place. Set aside to dry.
 * __Step 5__ - ** Tie one end of the string to the thread spool attached to the pencil. Thread the string up through the arm of the crane and over the spool at the top. Tie the other end to a paper clip or button magnet to complete the crane. Turn the pencil to wind the "winch" of the crane and move the "load" at the other end.

= Gears = Is a rotating machine part having cut teeth, or cogs, which mesh with another toothed part in orders to transmit torque. The gears in a transmission are analogous to the wheels in a pulley, an advantage of gears is that the teeth of a gear prevent slipping.