Supplies:
- You will need an Egg carton (to hold eggs)
- Two Eggs
- Four quick setting clear epoxy Like this
- four color changing LEDs Here are some.
- One 8″x6″ Project box These are perfect
- One quadruple , Double A Battery holder Try this
- 9 Volt battery connector Here
- Two 110 ohm 1/4 watt resistors Here
- One small switch Here
- One piece of copper clad bread board
- Some 24 gauge wire
- Two feet of material (for wrapping the enclosure)
- One or more Stuffed Bunnies
- Thread (Try to match to your material)
- Wire grommet
- A USB cable (we will be cutting it)
Tools:
- Drill
- Sewing Needle
- Something to mix the two part epoxy in
- Soldering Iron
- Solder
- Clip on heat sink
- Hot glue
- Hot glue gun
- Phillips head screw driver
- Drill Bits
- Dremel
- Dremel cutting bit
Steps:
- Lets start by Washing the outside of the egg with soap and cool water. Then Drill out the top and bottom of some raw eggs with the dremel at high speed (25000 – 30000 RPM). Make the hole in the bottom of the egg larger than the one in the top. It will need to be large enough to pour in your epoxy. You will need to drain out ALL of the egg white and yolk by blowing through the top hole. Then thoroughly rinse the inside and outside of the egg shell through the large hole you drilled.
- Make a hole in the bottom of each place in the carton that you will be placing the eggs (this allows for plenty of air flow). Put a paper towel under the egg carton. Place the eggs with the large hole at the bottom in your egg carton where you just put the holes. We need to allow the eggs to dry for a while. If you are impatient(like me) you can use a hair dryer to dry out the eggs more quickly. You will still need to allow them to cool and air dry some(maybe an hour or so.)
- Once the eggs are clean and dry put some scotch tape over the small hole. Now mix one half of your first tube of two part epoxy and immediately pour it into the first egg. Then repeat this till the first egg is full. Once the egg is full place it in your egg carton with the hole facing up. Then repeat for the second egg.
- While you are waiting for the epoxy to set in the eggs lets work on our project box. Start by placing the battery holder inside the box to figure out you placement. Then figure out where you want your switch (usually on the back somewhere). What ever space is left over is where you will be placing the breadboard. You may have to cut your breadboard to fit. You can use the dremel or a pair of airline cutters for accomplishing this task.
- Its time to get the soldering iron and solder out. Heat your soldering iron to high if you have a dual temp iron. If you don’t, then you will need to have a soldering iron that is at least 45 watts. If your soldering iron is to cool then it will take to long to heat your components and may burn out your LEDs. Now solder the negative lead of the battery holder to the breadboard and the positive lead to the switch. Then solder a wire from the other tab on the switch to the opposite end of the breadboard.
- Now bridge two adjacent holes on the bread board with the positive lead from the switch. (this will be where you will solder the resistors)
- Solder the resistors from the two bridged points on the positive lead to the other end of the breadboard, leaving some room on the end for your LED leads to attach.
- Now bridge the negative lead to an adjacent hole and solder in a jumper from the bridged hole to the other end of the breadboard, again leaving enough room for your LED leads. Bridge from the negative jumper to two more adjacent holes.
- Cut the USB cable to length to go from the breadboard to the eggs that the Bunny will be holding, leaving a little extra for mistakes, and strip one end back about 1.5″ and the other end about 4 -6″.
- Choose your colors for negative and positive for each LED. Solder them to the board. (Negative to Negative and each positive to a resistor.)
- Drill the holes in your Project box for the USB cable and the switch.
- Mount the switch, battery pack and breadboard inside the project box with hot glue.
- Run your USB cable through the hole you drilled and put in the grommet at the hole around the cable, then hot glue the grommet and cable on the inside of the box. (this will help ensure the cable wont have too much movement and cause problems later on)
- Now time to go back to the eggs. They should be plenty ready now. Now crack and peel off the shells. Once you have done that you will probably have to clean the Epoxy eggs with very warm water and soap.
- Now find a drill bit that is just slightly bigger around than your LEDs. Drill out two points at the bottom of each egg for the LEDs to be placed in. Before permanently adhering your LEDs in the eggs test them by twisting the wires on from your circuit. Once you are certain that your LEDs are working with your circuit permanently adhere them with some epoxy.
- Sew your Bunny (Bunnies) to your fabric that you chose for wrapping your project box.
- Route the LED wire however you see fit for the placement of your eggs.
- Wrap your project box with your fabric using hot glue to adhere the fabric to the box making sure to get your Bunny placement right.
- Hot glue the eggs into place and flip the switch.
