How to use ? - Crank flashlight
Step 5
Make two small holes with a punch in the cap of the bottle.
Pass the two "legs" of the LED through the holes and connect them the ogher side of the cap with a pair of electrical connectors.
Connect two wires to the connectors and pass them through the neck of the bottle, and then through the cut at the back. Screw back the cap on the bottle.
Cut the end of two electric blocks until the metal part (this will help to connect the "legs" of the motor).
Pass the wires all the way through the electrical connectors and twist them around the two contacts (legs) of the motor. Push on top the connectors and screw well.
Step 7
Cut two discs in the cardboard following the model and reporting the inner circle (wher the wooden disc will be set) and the two points.
Glue the wood disc between the two cardboard discs.
Drill two holes M6 at the indicated locations.
Pass a M6x50 bolt screw through the "external" hole and fix a nut, a plastic tube and finally an acorn nut at the end. The tube must move freely on the bolt.
Step 10
With a box cutter, extract the metal part from a 4mm electrical connector.
Screw a telephone socket to this metal connector at one end and fix the other end to the motor axis.
Verify that the axis of the engine turns freely without touching the plastic bottle and that all parts are well aligned
Step 11
Screw back the cap of the bottle and close the bottom slot with insulating tape.
Connect the disk to the engine by passing a rubber band between the two cardboard disks and around the telephone socket.
Try different sizes of elastic bands to find the ideal one. The cardboard disc can be decorated to add some fun !