Dongguan Mingyi Printing Co.,Ltd
As part of the maker club my husband and I run at a local College, we came up with Those Easy light up cards for the kids to get Expertise with creating a circuit.Although there are many fun products for kids to learn about circuits, we saw many of them to be cost prohibitive for a club with 60 children. This project uses supplies so that everyone can join in the enjoyable.
Materials: Card stock (2 sheets per card) scotch tapeMini glue dots1/4" aluminum tape (available at Amazon.com) LEDs (2 or 3 per card) Metal Brads (used for the on off switch) Coin Cell BatteryMarkers and objects to decorate your cardUse a pen to sketch your design for the front of the card, then determine where you want the LEDs to be placed. Sketch the place of the battery. It should be near one edge of the card, you will need to push on this place to create the card light up - maintain that in head when placing (i.
a teddy bear with eyes that light up could have the battery located at it's belly button). We will be creating a parallel circuit, so sketch in two lines for the aluminum tape starting at the LED locations - one should end under the battery and the other should be about 3/4" to one side of the battery. Cut 2 lengths of aluminum tape to match peel and your sketch off the backing and apply to your card.
Use two miniature glue dots to attach the battery over the aluminum tape per your sketch. Make sure the bottom of the battery makes contact with the aluminum tape. Select a couple of LEDs for your card. Bend on the aluminum tape the legs horizontal and place.
Use a little scrap of aluminum tape set on the battery to finish the circuit. Assess if your LED lighting accumulate. LEDs have a polarity, so if it does not light up twist the LED 180 levels so the legs are now touching the opposite pieces of aluminum tape. Once your LED lighting up you can secure it to the card.
To make the best link cut a little piece of aluminum tape and rod the backing side to a piece of scotch tape. Lay the aluminum over the LED leg on the aluminum tape strip and press everything collectively. Secure the LED legs in this way. You need a switch to finish the circuit.
The simplest version is a pressure switch, only secure the scrap of aluminum tape you used in measure 3 to test your LED. I tape the end touching the aluminum tape and strip leaves the end over the battery loose. This works for cards you will be giving to someone in individual, but since this is easily triggered you can fast run out the battery if the card is put in an envelope.
The metal may be used to create an on/off switch. Cut a little strip oflegs and poke both card stock through it. Bend the brad legs level. Today place the head of the brad the aluminum tape strip without the battery.
The brand needs to be close enough to the edge of the newspaper so that you can move one of the legs back and forth out the card. The additional leg should be able to touch the back of the battery. If it overlaps the battery a bit It is better.
After you have the switch positioned tape down the piece of card stock the brad is through. Make sure the brad still moves freely. Take a second piece of card stock and lay over your circuit, this will be the front of your card. Where the LEDs hit the card and poke holes Mark.
Assess that the LEDs fit through the holes. Today remove the card (cover) and decorate. After the card is decorated place the outer card over the interior card and protected around all the borders except where the change is located.
Make sure to add a little tag signaling on and off as well as where to press to trigger the LED