Thursday, January 23, 2014

Blue Esky Big Coco Lama RC Helicopter for Outdoor RC Flying

Here is a world of Rc Helicopter. This can be the huge version of the famous TWF Esky 4 channels coaxial helicopter using the latest 2.4Ghz!
Blue Esky Big Coco Lama RC Helicopter
This is the huge version of the famous TWF Esky 4 channels coaxial helicopter with the latest 2.4Ghz! Include EVERYTHING TO FLY! Outdoor flight radio controlled helicopter. Great power against wind. Super stable. You will be amazed at how EASY it is to fly a 2.4Ghz 4-channel rc helicopter.
The Esky Big CoCo Lama is a much larger sized 4 channel helicopter designed to be flown outdoors. The product includes the helicopter,transmitter, charger, extra set of main blades, LiPo battery, and 8 x AABatteries for the remote. The RC helicopter is completely ready to fly outof box!Binding for RC System of each model has been completed in factory,without needing to debug again.
2.4G transmitter wil twinkle for 3 seconds, which indicates thattransmitter is sending code binding information. After 3 seconds, thetwinkling 2.4Gtransmitter indicator becomes solid, indicating thatsending the channel data. Then connect the 4in 1 mix controller, observethe 4 in 1 mix controller, 2.4G transmitter indicator twinkles two timesand gets solid, which indicates that the reception of the channel data issuccessful and are ready to fly. Turn on the transmitter and power on thehelicopter. LED indicator of 4 in 1 mix controller go out after twinklingtwo times, indicating that binding is failing and need to unbind firstly andrebind.Power on the transmitter, indicator twinkles 50times within 3seconds of binding period, the indicator get solid after the binding.(Please note that in the process of binding, first connect the or 4 in 1 mixcontroller before powering on the transmitter ).
Blue Esky Big Coco Lama RC Helicopter
If binding is not successful, the indicator of 4 in 1 mix controller willtwinkle two times then go out. Since different manufacturers havedifferent frequency band, channel and different coding and decodingmethod, so different products are incompatible, all RC system should beunder the original trademark. Do turn on the transmitter once again ineach binding. The Esky RC helicopter is completely ready to fly out of box! Exquisite Scale Body, Attractive color. Co-axial counter-rotating blade system offers stable flight and is easy to control. The helicopter allows outdoor flight in gentle breeze. Several canopy options provided.
If you like it too,go rctophobby ,I believe it won't disappointing you.

Wednesday, January 15, 2014

Designing & Building a Rapid Removal Micro Model Airplane Two




Rapid Removal Micro Model Airplane
Last time we talk about making landing gear, now we continue to introduce the airplane.
5, the production wing connecting frame
1 ) Cut the connecting frame parts
First with a laser to draw graphics on the 0.6mm CCL, then with electricity grind and 1.05mm cutter cutting( Note electric grinding cutting speed can not be too fast), and finally with ferric chloride to remove the copper on the CCL .
2) prepare other parts
Prepare two carbon rods 3, 2 root shrinkable tube two, 2 roots heat shrink tubing three (half cut), 4 heat-shrinkable tube four(half cut).
3) assembly
The main method is to use heat-shrinkable tube positioning and fixation point 502 glue. Specific steps: First, assemble 0.8mm carbon rod and link rack pieces, revealing only the ends of the carbon rod 0.5mm, 502 glue fixed points, set in 0.8mm carbon rod is 4 length 6mm, 1mm in diameter shrink tube (used to install the main landing gear), penetrating the two ends of the heat-shrinkable tube to the 2mm link frame piece hole because of heat shrink tubing a little bit rough, 1.4mm carbon rod in the first set, with the hot air blowing to shrink then remove; carbon rod into the 1.4mm fuselage mounted on the frame piece 2mm linked heat shrinkable tube; finally install the landing gear, with a heat gun to shrink tube blowing stereotypes, then 0.4mm wire strapped carbon rod cross gear and a fixed point at 502 glue (be careful not to let the glue flow 1.4mm carbon rod).
6, the production wing
There are six wing ribs, with four carbon rods 4 are worn together. First with 502 glue to secure the ends of the ribs, and then adjust the middle four ribs location (note the middle two distance 50mm), and then fixed with 502 glue all connections. Next, with the former making balsa wing trailing edge, and they are polished smooth; finally press from the back, from the bottom of the order posted tissue paper.
7, making the lock - lock function is fixed wing.
Rapid Removal Micro Model Airplane
8, assembly
Assembling the wing and tail connecting frame, paper tape tail bonded together and connected frame; locking the wing with fixed wing connections shelves. To adjust the horizontal tail wing is connected to the reference frame to keep the wings level after its installed power system and a fixed point on the 502 glue, and finally attach the battery and micro receiver. Check the center of gravity is appropriate to change the battery and connect the wing rack position can be adjusted if inappropriate.
Third, the test
Because outdoor wind, so I chose an empty factory test, although this model aircraft very quickly on the ground roll, it is difficult to take off. Analyze the reasons may be two things: First, with respect to such a small size, the model is too heavy, and second, there is a lot easier to take the air wing skin tissue paper pores, resulting in significantly reduced lift.
Fourth, improve
For test exposure, I developed a modified program: 1, remove the carbon rod under the wing and trailing edges of the beam; 2, wing skins to change with plastic wrap; 3, horizontal wing without electromagnetic rudder; 4, landing gear 1mm diameter 0.6mm diameter carbon rod into the carbon rod.
Specifically:
1, the transformation of the wing
Remove the wing tissue paper, glued over the place there will be some glitches, can be roasted over the fire carefully (note not a big fire). Edge of light wood, carefully took off under the wing trailing edge of the beam and the carbon rod is removed after removing the wing and then put a light wood stick back (wing will deform); would cling film to start laying on a flat desktop , with a ruler and a knife to cut the upper end aligned and glued to the rear edge of the wing light wood, and then from the rear to the front, top to bottom tighten the wing surface covered with plastic wrap, in the wing trailing edge with plastic fixed, then wrap with plastic parts wingtip fixed; finally with polyester thread sewing clothes will be pulled into a curved wing, on the line.
2), the replacement of the carbon rod
Need to replace the wings connecting frame carbon rod and landing gear carbon rod. Replacing the same process and the installation process.
3) improve the horizontal tail and tail landing gear
Increase the horizontal tail, the rear edge slightly upturned installation; tail landing gear replaced with a diameter of 0.5mm wire.
After transformation test again and found a lot slower roll model, so changed to throw off by hand. The next test is successful, the performance of the aircraft than the original model aircraft significantly improved. I believe this model plane there is room for improvement, look forward to making a better miniature model airplanes.
This is what I made model airplanes, I hope you like it. and if you want to learn more information about the RC airplanes, you can go rctopshop.

Thursday, January 9, 2014

Building F7U EP Scale Model Airplane two

Skin and assembly models
Five parts produced, after carefully polished smooth with fine sandpaper, you can skin of the wing and vertical tail. I used thin copy paper, glue it to Mongolia after the surface of the part, you can increase the strength of the foam surface, but also free to paint with paint on it.
The whole machine can be assembled wings and tail skin after. Note that the forward fuselage assembly mounted in the rear fuselage of the first motor frame fixed. Motor frame with thin plywood production, assembly of the fuselage to the rear of the fuselage glue pressed "solid core" inside. Motors do not add installation angle in any direction, if you must change to achieve thrust line, you can use different thicknesses of rubber gasket on the motor bracket to change the angle of deflection.
Adhesive foam, I tend to use white latex, although the drying time is very long, but use it to foam bonding interface strength and the strength of the surrounding material not only has a good consistency, but also has a certain flexibility. When damaged model, interface is not easily broken. Note: When the adhesive area is large, without adequate drying time, do not think outside the glue dries on the line. When I made this model aircraft, with real dried for about 24 hours.
RC Airplane
Plane model aircraft of paper skin is easy to coating for model fans, Friends of the majority of the mold can enjoy the level of play to their paintings to decorate the love machine. By real aircraft painting, the surface should be gray, light gray lower surfaces, to a certain extent, is a protective color - deep back, abdomen shallow, the opponent in the air is not easy to distinguish. And when we manipulate the model you need to clear to see it flying in the air is very bad. To this end, I used the end of white, badge, ID, etc. are modeled on the color of the real machine, and then draw a thin line cockpit, skin lines, rivets, good results.
The characteristics of the model test
The model of no horizontal tail is more accuratek, because the pitch is not easy to adjust the balance. Therefore, the test must be checked before the formation throughout the body structure and symmetry; to ensure that the center of gravity position ( before and after adjustment methods available mobile battery ) 1 /4 of the front center of the chord; sides of the aileron should also upturned 3 ~ 4mm. After adjusting the position of the center of gravity, the need to throw the first pitch hand balancing test method for testing the model.
According to experience, found a slightly higher than the surrounding ground, open the remote control, the model is powered from a high level to be cast out, and to observe its flight, because of the high standing position, when the model appear the serious situation of " head light "and" heavy head ", you can use the remote control to the availability of its smooth landing, and will not break. If the test found throwing hand model "first light " and " top-heavy ", but in line drawings mark the position of the center of gravity, do not adjust the center position, but should modify the aileron height, or use the remote control to fine-tune the pitch channel to compensate. If you need to adjust the amount of large, fine-tuning the remote control has been insufficient to compensate, you should directly extend or shorten the length of the cabin Rack .
Hand throwing a preliminary test of the model after adjusting,carryong a experiment of a power level flight: to open a small force, thowing the model level by hand, obser model can maintain some level flight or decreased. After level flight tests, to know what the two ailerons should be adjusted to the position, then the method can be used to adjust the length of the cabin Rack. This small power level flight can be adjusted to the remote location of the center position. This test even the most difficult hurdle passed, later large powered flight would not repeat when adjusted.
RC Airplane
This frame impetus foam model aircraft, flight weighs less than 300 grams, more suitable for young people making and flying. Relatively high aircraft propeller at the front of the model aircraft safety performance, even during the flight or landing hit people or things, there will not be much damage. I made model airplanes have a better grasp of the fuselage, very smooth take-off and landing; two large vertical tail to make the flight attitude particularly stable. Then according to the proportion of different sizes made several aircraft model aircraft, small wingspan of less than 400mm, not much bigger than the remote control, because of the relatively large cell stack weight, wing loading close 30g/dm2, is slightly larger produced using fiberglass fuselage, and the electric power system uses a ducted propeller, as the real higher.
Finally, to remind everyone that will produce chlorine and other harmful substances and processing with electric wire foam pile, though rarely, it should be taken to avoid inhalation, in order not to affect health. I used the kitchen exhaust hoods and fans methods harmful gases blown away.
If you are interested, you can also try to try. Good luck.

Thursday, January 2, 2014

Designing & Building A Rapid Removal Micro Model Airplane One

Today,I want to introduce a model airplane to you.This model airplane is made by myself, the method is very sample, you can try.
This frame quick released model aircraft designed inspiration from disassembly and convenient mountain bike. Whole machine weighs only 12.4g,can be split into seven parts: wings, tail, fuselage, wings connecting frame (including front landing gear), power systems, receiver and battery. Position can be adjusted around the wing, the mounting angle can be adjusted within a certain range.
Rapid Removal Micro Model Airplane
First, the preparatory work
Material: Carbon rod 1 (diameter 1.4mm, length 20mm, one), a carbon rod 2 ( diameter 1mm, length 65mm, two), a carbon rod 3 (diameter 0.8mm, length 51mm, two), the carbon rod 4 (diameter 0.8mm, length 250mm, four), carbon rod 5 ( diameter 0.8, length 13mm, two), CCL (thickness 0.6mm, 70mmx100mm one), ferric chloride, heat shrink tubing 1 (diameter 2mm, length 3.5mm two), heat shrink tubing 2 (diameter 2mm, 5mm long two), heat shrink tubing 3 (diameter 2mm, length 6mm two), heat-shrinkable tube 4 (diameter 1mm, length 6mm four),thermal tube 5 ( diameter 2mm, length 13mm two), heat shrink tube 6 (diameter 2mm, length 13mm one ), tissue (300mmx150mm one), motor (6mm coreless motor one), propeller (GWS-EP-0320 one) the gear (blue arrow 4.3g capstan servo and the third stage reduction gear 2), steel shaft (diameter 1mm, 2mm long one),wire(diameter 1mm, length 17mm two), two wires (diameter 0.5mm, length 30mm one), 3 wire (diameter 0.5mm, length 15mm two), a coil (an outer diameter of 7mm, an inner diameter of 4.5mm, a thickness of 3mm), the magnet (diameter 3mm, thickness 1.5mm), wire ( diameter 0.4mm), plastic sheets (thickness 0.2mm),light wood, 502 glue.
ools: grinders,milling machines, drills, cutting discs, scalpels, sandpaper, hot air gun, eMule iron, laser machine.
Rapid Removal Micro Model Airplane
Second, the production process
1,power systems
1),the production of motor frame
Motor frame can be divided into the front bracket and rear bracket. First, determine the motor right corner and pull the pull-down angle, then calculate the distance of the latter bracket mounting holes around the midpoint; then use the software to draw the desired pattern, painted with a laser machine CCL surface (directly engraved with engraving machines down better); finally come out with a milling process. The best shape accuracy bracket higher than 0.2mm, or will cause great shock when the propeller rotates at high speed.
2), the assembly
Prepare a diameter of 1mm, about 2mm long steel shaft, a 1mm diameter shrink tube, two collars and two spacers (removed from the motor shaft diameter 1mm), assembled, and then transferred hot air gun to 120C. Blowing heat shrink tubing to make it shrink; checking whether the rotating flexible shaft, if you need to adjust and flexible plastic fixed point 502, and finally put on the propeller.
2, making the tail
1), wood production and skin structure
Tail uesed light wood and tissue paper as the timber. Note that when attached to tissue paper, you use the camera gently flatten and then sub-Mongolian reply.
1), wood production and skin structure
Tail light wood and timber as tissue paper. Note that when you have to use the camera attached to tissue paper and gently flatten further sub-Mongolian reply.
2), with a knife from a plastic sheet 0.2mm thick (also later) under a wide cut 1mm, about 20mm long plastic strip, and then use the heat gun (about 100 ℃) while blowing side pull, until the plastic strip is not then extended from the middle hinge as it cut 10mm. Repeating the above steps were produced 4. Then with a knife between the flat surface and the vertical tail rudder mounted fixed position slotted hinge (not to install the rudder).
3), the installation of electromagnetic rudder
Electromagnetic coil leads rudder is very short, but some welding extension cord is very troublesome, it can be pulled down for a period of lead wire (wire diameter is small, must be careful when pulling) from the coil; then glue it with 502 coils mounted on the tail (Note that the two coils do not rely too close, otherwise it will be affected rudder magnet). Another with a diameter of about 0.4mm of the magnet wire wrapped tied , point 502 glue , and then glue the magnet 502 fixed rudder surface.
4), mounting the rudder
Hinged even after a good paper plane and rudder fixed to both tape and paste it, then peel off the pre-flight, in order to avoid accidentally damaging the tail.
3, the production tail connecting frame
First, draw the desired shape using the software, and then get the monolithic laser cutting plywood connecting frame. Then connect both ends 0.8mm carbon rod penetration groove frame pieces and cement; finally placed on the end of the connecting frame piece fuselage 1.4mm carbon rod with heat shrink tube stop.
4, making landing gear
Interception of a length of about 17mm, 1mm in diameter wire, bent at approximately 10mm at its 45 °; then this steel and 10mm 65mm, 1mm in diameter at one end of the carbon rod 10mm piled up, tied together with a 0.4mm wire; Finally, point 502 plastic and wrapped in shrink tubing. At the other end is mounted on a steel wheel and wheel block.
To be continue...