Take a thick paper for office equipment. Draw on a sheet of paper petal with a base of 3.2 cm and a length of 22.4 cm Side parallel to the base equal to 9.5 cm and has a slight tuck up. Each petal of the bell length is not a straight line and a smooth transition.
Cut out one template and trace it with a pencil outline to get 10 petals. When you cut the workpiece, leave each of them with the left side cut a width of 0.5 cm This piece is needed to glue the next petal.
Cut the edge in several places, so it can be easy to bend. Do not use ordinary paper and carpenter's glue. It is better to stick together not in a chain one after another, and in pairs, then glue pairs. Allow to dry each glued seam, otherwise in gluing the petals following the previous stitches can unravel.
The neck of the horn has a conical shape. Draw a straight line with a length of 35 cm put the Compass into the base line and draw a arc of radius 7 cm, and another 31 see on the one hand leave the edge width 0.7 cm for gluing. Glue the cone. After drying make 10-12 cuts of 1 cm in length on the narrow side of the cone for gluing nozzle.
The pipe is comfortable to glue on a wooden disc with a diameter of 2 cm to easily remove the finished pipe wrap on a pig greased with glue strips of paper width of 4 cm, while the wall thickness of the pipe will not reach 1.5 mm. After drying, remove the pipe blanks.
Cuts cone grease glue inside and insert the nozzle. Additionally, seal the top strip of paper in a circle.
Fold the finished side of the mouthpiece so that the neck was part of the trumpet from the inside to a depth of 0.6-1 cm Neatly podmate edge of the socket, around the circumference of joiner's glue, by bending the neck with your finger inside. Cover outside, and after drying is from the inside layer liquid joiner's glue. The horn will be solid. If you want you can cover the mouthpiece of varnish or paint. It will noticeably amplify the sound. The same pattern can be made the mouthpiece of tin, only the joints need to be able to connect by soldering or the castle.
Advice 2 : How to make bass speaker
How to listen to your favorite music without dynamics? Why not make a subwoofer with their hands? From listening to music you enjoy more, because see the fruit of your labor.
You will need
- - the file;
- - wire;
- - clip;
- - hammer;
- - magnetic tube;
- - woofer;
- - DSP;
- - personal computer;
- - a drill bit;
- plaster on wood;
- - spatula;
- - sandpaper;
- - silicone;
- - wire;
- jig - saw.
Pick up the wire cutter part of the nail (leave this part of the nail, which would match the height of the generated dynamics). Then gently with a file to file the side of the "biting". On the part of the nail, where there is a hat, wrap copper wire with enamel insulation.
Make the base: beat with a hammer an ordinary office supply metal clip, causing it to turn into a small piece of foil.
After that, take a magnetic tube, install a nail with a coil and stick it to the base. Of the second metal clip make thin, like foil, a plate and set it on top of the magnetic tube.
Connect the speaker and enjoy listening to your favorite music.
Assemble the subwoofer. For that buy for him "heart" – woofer. Then everything is simple: with the help of a program to calculate the cut size of the body. This is a very important step, because the correct definition of the sizes will depend on the quality of the sound. The housing is manufactured from chipboard with a thickness of 24 mm. Transfer the dimensions of the subwoofer on the chipboard and cut. Then connect the walls of the future subwoofer with screws, pre-drilled holes with a drill of suitable diameter. For reliability over the docking of the chipboard with glue on wood.
Follow the internal handling of the subwoofer. All domestic connecting promazhte seams with silicone sealant. Then zashpaklyuyte the inner walls of the subwoofer, and then sand to the desired grit and grind wall. Jigsaw cut the holes for the socket and the port, and make the body beautiful pen. After the performed procedures obkleyte subwoofer decorative self-adhesive. Finally, attach the speaker, phase inverter and wire.
Be careful when working with a jigsaw. Just watch your fingers.
If you use the adhesive under the leather, the subwoofer will look quite stylish.