Music Loving Whale

by weirdme in Workshop > Lighting

507 Views, 2 Favorites, 0 Comments

Music Loving Whale

IMG_20150119_182944053.jpg

I wanted to make a music deck speaker for my mobile. The available speakers in the market are with boring design and mostly without any addons. First I had to think about a design, and I came up with a blue whale. The end product should have multipurpose as I am not going to keep my mobile on it all the time.As such I wanted to have a night lamp and also a pen holder but all these are optional. The music deck has music synced leds on it. Such music synced ledsa are easy to built unless someone is a complete noob in electronics ( which I am but still I was able to do it with little changes ). The circuit is available in other instructables also

Materials Needed

P_20150113_172257.jpg
  1. plywood
  2. aluminium tubes
  3. wires
  4. leds
  5. TIP#!C transistor
  6. old speaker set
  7. switches
  8. screws
  9. wood glue
  10. paint
  11. resistors

Tools Needed

P_20150119_192350.jpg
P_20150119_194418.jpg
  1. jigsaw
  2. electric drill
  3. soldering iron
  4. glue gun
  5. hack saw
  6. multimeter
  7. hole saw
  8. files

Putting Plywood Under Blade

P_20150113_172118_BF.jpg
P_20150114_004208.jpg
P_20150114_004032.jpg
P_20150117_141004.jpg
IMG_20150119_183530750.jpg
P_20150117_143413.jpg
P_20150117_151755.jpg
P_20150117_151821.jpg
P_20150118_155459.jpg
P_20150118_160503.jpg

The first step is to cut the plywood of specific rectangular dimensions. I had to put four such plywood pieces to have a combined width of four inches because two inches would be used by the pen holder and the rest two to keep the cellphone.All the four plywood are to be cut into a whale design using a jigsaw. Never ever anyone should try to cut the four pieces separately because they will not match properly. adding to it I had to cut a back plastic cover which is a actually a unused vegetable cutting board ( my mom is so going to kill me ). By far plastics are easier to make holes for switches. I used hot soldering iron to melt plastic to make holes. Numbering of the plywood pieces is a good idea. The number three piece has a hole in it to make way for the lamp. Likewise number two piece has a passage for the 3.5 mm earphone pin. The top most plywood has a big hole for the eye and four smaller holes for led lights. The plastic back cover has two rectangular holes for the switches. Also the 2nd, 3rd, fourth pieces has square cuts on it to place the speaker and the circuit.

The Electronics

IMG_20150117_104828148.jpg
IMG_20150117_104848493.jpg
P_20150116_220947.jpg
P_20150116_221036.jpg
P_20150118_221454.jpg
P_20150116_221052.jpg
P_20150119_114304.jpg

To make leds synced with music I used a TIP31c NPN transistor. It could be directly connected to the earphone jack with a 3.5 mm pin but I will not recommend so because then you can only see led blinking on full volume. So I used a dual channel amplifier from a old speaker. One port is used for the speaker as usual and the other port is used for the leds with the transistor. The old speaker run on usb power and has a 3.5 mm pin which I kept intact. The leds are connected in parallel, for the lamp I used a 4.5 volt led which is actually used in flashlight. I used resistors to drop down voltage across the leds

Final Finishing

IMG_20150118_223221450.jpg
IMG_20150118_223205995.jpg
IMG_20150119_182928142.jpg
IMG_20150119_183008785.jpg
IMG_20150119_183501755.jpg
IMG_20150119_182747207.jpg
IMG_20150119_182937486.jpg

All the pieces are to be assembled by using screws however not the first one which is glued to the 2nd plywood as I didn't want any other hole on the whale face. The aluminium pen holder is a 2*1 inch rectangular tube cut into about 2 inch size . The whole body except the back cover was painted with blue color