DIY

Christmas tree parody

Parody of the New Year tree The pre-New Year bustle revealed a strange state of “waiting for the holiday.” Some projects were completed, I did not want to start new ones. In the resulting vacuum, they decided to make something New Year's, such and such. The internet is full of all sorts of model options. A decision was made to start the “New Year's Flying Tree” project. Production time is two days. Together with my student Sergei, we sketched a sketch of the model. We will do everything locally, without detailed drawings and calculations. There is some adventurism in the process. It won't work.
And so let's start.
Parody of the New Year tree Since the tree “in winter and summer in one color” we do base of the model from three layers. The middle layer is orange underlay for 3mm laminate. Above and below, there is also a 2mm green substrate.
Parody of the New Year tree In general, it didn't work out without drawings, it turned out that symmetry had to be observed. We drew half of the Christmas tree. Have attached. The backing sheet turned out to be long. We reviewed the size solution. Making a full-length model of the substrate. Draw a template using a new one.
Parody of the Christmas tree Now the Christmas tree will be normal.
Parody of the Christmas tree Sergey applies glue to the green version glues to orange.
Parody of Christmas tree We cut out two halves and glue them together.
A parody of the Christmas tree  A parody of a Christmas tree A parody of the Christmas tree  Parody of the New Year tree A parody of the Christmas tree  A parody of a Christmas tree A parody of the Christmas tree Then you need to paste the reinforcement rails. We place the main ones along the fuselage.
Cut all three layers along, glue the slats, and a little across.
A parody of a Christmas tree Parody of the Christmas tree Christmas tree parody Parody of the Christmas tree Trying on a couple of garlands. the feeling of beauty of the project is growing.
Parody of the Christmas tree At the same time you need to cut off the elevons and glue a reinforcement rail across the tail of the fuselage.
Standard hinge for self-made plastic hinges. We glue one end of the loop into the elevon, which has not been cut yet. We are waiting for the glue to set. This is necessary so that, when installed in the fuselage, they do not fidget or warp.
Cut holes for the hinges with a special knife, very well sharpened from all sides.
I made it from a thin blade of a utility knife.
Parody of the New Year tree Christmas tree parody Parody of the New Year tree Christmas tree parody It is necessary to determine the location of the motor and the dimensions for the screw.
I made a mistake in this position. Believing that a heavy battery would significantly shift the center of gravity, he determined a place for the motor almost in the middle of the model. How we fought her story below. I draw everything on the template.
I use it to mark it on the Christmas tree and cut out a hole for the screw.
A parody of a Christmas tree  A parody of a Christmas tree Parody of the Christmas tree  A parody of the Christmas tree Parody of the Christmas tree Motor mount made of 4mm plywood, immediately mark holes for the motor and drill holes. since this cannot be done on the assembled model. We reinforce the motor mount with triangles made from scraps of “three-layer cake”.
A parody of a Christmas tree  Christmas tree parody A parody of a Christmas tree Parody of the New Year tree Then I draw lateral keels, long in length, almost in the entire body. And small tails.
Parody of the Christmas tree  Parody of the New Year tree A parody of the Christmas tree Glue it in place. For vertical gluing, it installs triangles from insulation. Pre-pasted with adhesive tape to protect against glue. We fix the elements with needles, pierce directly through the foam at various angles. Tk fixation is stronger. The main thing is not to get the needles into the glue. Otherwise, when removing, you can pull out a piece of foam with glue.
Parody of the Christmas tree Christmas tree parody Parody of the Christmas tree Christmas tree parody Parody of the Christmas tree A parody of a Christmas tree Parody of the New Year tree Mark the installation locations of the servos. We put them on frames made of fruit plywood.
We glue everything on Titan.
Parody of the Christmas tree  Christmas tree parody The guys offered to put a couple of pilots on model . We made a cabin.
Parody of the Christmas tree  Parody of the Christmas tree Small rods were made of solid wire.
Parody of the New Year tree A parody of a Christmas tree Standard pigs from plastic construction corners. Glued to titanium, previously rubbed with coarse sandpaper to increase reliability.
We finally install the equipment. Pull the hogs into elevons and cut them.
A parody of a Christmas tree A parody of the Christmas tree  A parody of a Christmas tree A parody of the Christmas tree A little missing, part of the necessary removed from another project.
Parody for the New Year tree Since the project is tentatively called “FIR-tree”, we are installing a couple of small garlands.
Parody of the Christmas tree A parody of a Christmas tree  A parody of a Christmas tree A parody of the Christmas tree  A parody of the Christmas tree The Christmas tree lit up.
Since the side keels were quite large, we installed spacers.
Finished the project, test flights are ahead.
Parody of the Christmas tree The first tests showed terrible rear alignment. Very large roll motion. Clamping expenses didn't help. I practically cannot unfold the tree in flight. The tests passed without major damage. The device broke the nose a little.
We sealed the nose and dry on the battery.
We begin work on the elimination of the rear centering and poor heading control.
Part one, cutting off the huge keels in the rear of the aircraft.
 A parody of the Christmas tree At the same time we remove the keel reinforcement strips.
Place a protective ridge in front of the pilots. It shifts the centering by a micron. we move the servos as far forward as possible, to the very cutout for the screw. We made and installed a small rudder, added another servo. The movable part of the steering wheel was hung on homemade plastic hinges. I had to seriously lengthen the traction. Made from skewers and paper clip tips. Everything is tied with threads and glued with cyacrine. I blotted the excess with paper.
A parody of the Christmas tree  Christmas tree parody Parody of the Christmas tree  A parody of the Christmas tree A parody of a Christmas tree The holes of the previous places for installing the servos were sealed patches for beauty.
Parody on the New Year tree Elevons were cut a little, the shovels were too big.
Parody of the Christmas tree The regulator and the battery have been moved forward as much as possible. Even the battery blocks of the garland were moved to the bow.
Little by little moving and modernizing, we added weights in the bow and finally drove the center of gravity into the right place.
I like similar projects that I do without drawings and calculations.
There is always an intrigue, it will work, it will not work.
Sometimes it works. Parody of the New Year tree
Chased the tree all day. They even landed on a tree.
A parody of a Christmas tree Sergey heroically climbed to shoot. The damage was repaired and flew again.
Several batteries were discharged, it's a pity, the tree didn't live until nightfall. It was not possible to see how the garlands glow. Broke before.
Dismantled the project, removed the equipment, put it until the next achievements.
Recorded a lesson on this topic. there are some videos of flights.
Both successful and not very successful.
Yes, I forgot about the equipment installed on the model.
I will add a little.
30A ESC 5V speed controller and 2A BEC for 2-4S Lipo batteries.
Characteristics ESC:
BEC: 5V/2A
Li-ion, Li0poly: 2 -4S
Dimensions: about 5.7×2.4 cm
Weight: 26.5 g with wires; 3.5mm banana motor plug
Link .
Servos.
Weight 9g small SG90 servos
Features:
Response speed: 0.3 sec at 60 degrees
Force: 1.5 kgcm
operation at temperature: 0 C to 55 C
Voltage range: 4.2 V to 6V
Control cable length: 250 mm
Link .
Motor.
Brushless motor 2212 1400KV 30A
Efficiency: 80%
Maximum current 4-10A (& gt; 75%)
No load at 10V 0.5A
Batteries: 2-3 Li-Poly
Dimensions: Φ27.5×30 mm
Shaft diameter: 3.17mm
Weight: 47 g
Link .
Battery.
LiPo Battery 3S 11,1 V 2200
Manufacturer: TCBWORTH
Maximum capacity: 1100 mAh-6000 mAh
Voltage per can: 3.7 V
Maximum voltage per can: 4.2 V
Maximum charge: 12, 6 V
Size: 108x34x24
Weight: 204
Link .
Screws.
GWS screw PROP 8060
Link .
Equipment on which I fly.
FlySky FS TH9X transmitter, 2.4G, 9 channels, together with a receiver, 2.4G module is installed, < br> 1.Total channels: 9.
2. Model types: helicopter, airplane, glider
3. RF power: less than 20dBm;
4. 2.4G system: AFHDS
5. Code type: GFSK
6. Sensitivity: 1024;
7. Bandwidth: 500 Hz
8. Low voltage warning – yes
9. There is a DSC port
10. There is a charger port
11. Power: current consumption 12 V
12. Weight: 670g;
13. ANT length: 26mm;
14. Size: 185 * 220 * 110mm;
15. Color-black
16. FCC-CE certificate;
Link .

Source:

usamodelkina.ru

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