Step 1: Materials and Tools
Some Wire (a pair) about 30cm long and another pair about 10cm for the battery
A small switch capable to fit on the light
a LED 1,7-2,2 V bright Red
Some heat Srink tube about 20cm
a cellular phone battery pack above 3V
a plastic case for the battery made from any plastic or from old cell battery
a lighter fot shrinking the cable tubes
and a helmet....
a small lamina about 5cm made of copper
hot glue pistol
a drill of 2.5" for metalls
a drill gun
Step 2: How We Do It
Step 2# We need to add a tiny switch so we need a small circuit for that....its very simle. Cut the positive wire and connect it to one end of the switch and the other cutted end to the other end of the switch.
Step3# We glue with hot glue the switch to the body of the light. We leave about 20cm cable to fit in the helmet
Step 4# We drill the helmet to make a small hall of 2,5mm diameter. We need the 2,5 drill with the drillgun. The point we drill the helmet is in the half of helmet and we leave space for the glass of the helmet to move at the top.
Step5# We clean the hall and we pass the cables through the hall. we can do it by helping of a wire.
Step 6# We prepare the battery pack. We solder the other small wire pair to the plastic case witll host the battery. The purpose is to remove easilly the battery for recharging. to do so we need the small copper lamina. We bend the two pieces of lamina of 5 or 3 cm so the battery will easilly attach to them...Something like the original pins of the cellphone. We glue the bended copper with hot glue.
Step7# We solder the main wires coming from the light with the small wire comning from the battery. we use the shrink tube to avoid any shot circuit.
Step8# with hot glue we glue the light tight on the helmet
Step9# to hide the cables and the battery we rip the internal of the helmt about 3cmX5cm. That's enough and can hold the battery
and the cables.
After all we have the final result. The future helmet. Thanks for watching.......