Hi,
the new most basic and easy one .
5c. connect the conroids to the wing spar attachment wire and the crank shaft .Adjusting the space between conroids so that it moves easily heat shrink tape can be used it can be substituted by the cleaver use of tape .
the new most basic and easy one .
So this is the best and the most easy Bird you can make at home .
this is an "ORNITHOPTER"!!!!
a new breed of flying bots or say the new type of airplane .
- NOW HOW DOES IT FLY???
by seeing it even a 8th grade student can tell that it fly's as the bird fly . the answer is also the same it fly's as the birds do that is the "flapping the wings " and this is the best quality which makes it unique that is this is the most efficient aerodynamic design ever made as it is prepared by ""god"". So enjoy making the "god design ".
MATERIAL USED:-
so the materials are not much hard to get and can be manipulated in a wide range .
[A] Balse rod 5/16"x1/2",7 inches.
Cut into lengths of:
5"motor stick
1.5''front Vertical connector
[B]Balsa rod 3/16"x1/16",6 inches
Cut into lengths of:
2.25" connecting rods (2)
[C]Balsa rod 1/8"square ,24 inches
Cut into lengths of:
8" wing spars (2)
5" top wing attachment member
1.5" back vertical connector
0.5" crank standoff
[D] Balsa rod 3/32" square, 14 inches
Cut into lengths of :
7" tail members (2)
[E] Music wire or a thin light rod, 0.32" diameter,
10 inches
Thicker wire is too heavy and can adversely affect
bird's performance.
Cut into lengths of:
3" tail/rear motor attachment wire
2.5" crank/front motor attachment wire
2" wing spar wires (2)
[F] Sheet of tissue paper,
18"x 18"
Made specifically for modelling,
about 1.13 gram per 100 square inches.
Regular tissue paper is comparatively heavy.
[G] Square paper 2"x 2"
[H] Heat shrinkable tubing 1/16" diameter
Cut into 3 pieces each 1/8" long
[I] Small beads (2)
With inside diameter just large enough to accommodate 0.32"
diameter music wire. From bead or craft stores.
[J] Model airplane rubber 12" long
Tied in a loop to make a big rubber band.
From hobby shops.
[k] Strong glue( Fevi quick, Bon fix etc.)
[L] Glue Stick
TOOLS:-
(not shown)
- needle-nose pliers(2)
- Utility knife to cut balsa wood to size
- Ruler
- Scissors
BUILDING THE BIRD:-
----------------------------------------------------------------------------------------------------------
START:-
Time:-a day Complexity: Medium.
-------------------------------------------------------------------------------------------------------------------------------
1. MAKE THE FUSELAGE
the center of the motor stick at a point 3/8" from the tail end . Then make two 90-degree bends
in the wire as shown ,and glue into place using strong adhesive . Reinforce the wire-to-balsa
joint by placing a tissue paper cover over it .dab the joint with a thin layer of strong adhesive
1b. Glue the fuselage together as shown .
1c. Roll the 2"x2" paper into the narrow tube using the wire used .then remove the wire
and apply glue to make it hard but don't block the hole.
1d. Attach the 3 tubes to the fuselage as shown ,with strong glue.
As shown:
1e. Use the pliers to bend the wire so that the crank shaft appears as shown .
Insert the crank wire as shown through the paper tube .
place 2 beads on the wire .Create a bend in the back end of the wire to act as motor hook.
2. MAKE THE WING SPARES :
2a. Bend the music wire as shown. Carefully push it through the wing spar 3/4" from one end. Glue into place using strong glue . Reinforce the joint by wrapping a layer of tissue paper around the
the joint and coating with glue.
3.MAKE THE TAIL:
3b. Poke the end of the fuselage tail attachment wire
into the balsa tail member: then glue the asse-
-mbly with glue .and again reinforce it.
4.MAKE THE CONNECTING RODS (CONRODS)
4a. The conrods under go considerable stress .Harden the rods by coating the last 1/2"
4b. Make 2 holes for the music wire in each concord ,1/4" from each end.
5.FINAL ASSEMBLY:
5b. Glue the tissue paper wing to the wing spares and the top wing attachment member . Glue the tissue paper tail to the balsa t frame and with a glue stick.
5c. connect the conroids to the wing spar attachment wire and the crank shaft .Adjusting the space between conroids so that it moves easily heat shrink tape can be used it can be substituted by the cleaver use of tape .
5d. Bend the tail about 15-degree to the pane of motor stick.
6. SENDING THE BIRD:-
Now its time to fly a bird!!!!
6a. Double the robber band an place it over the front and rear motor attachment hooks
Rub the rubber band with a little oil to reduce friction or lubrication .
6c.
Wind up the rubber about 35 turns.
AT last put the birds nose slight up and release the bird.
the one page design available at:-freebird.pdf
for more related go to http://www.ornithopter.org/
image from:- Make makazine,
Needs clearer pitures.the ones it already has are blurry.
ReplyDeleteEnter your comment... thanks, really nice job
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