Sunday, January 22, 2017

Emax Babyhawk 85mm Review

Indoor nano racers ramp up, with the adoption of brushless motors. As proof, this Babyhawk, which we have unveiled here. A motorized 8.5 cm diagonal machine that takes up the format of the Tiny Whoop, including propeller shields, but relies on 1104 to 5000KV brushless motors. They are powered by EPS 6A BLheli-S, for 2.3-inch propellers. The flight controller is an F3 which also acts as PDB and LC filter. The FPV part is provided by a camera combo - 25 mW video transmitter protected by a housing. Too bad the polarized antenna remains exposed to shocks: on such a machine, it is likely to suffer.

Resistance?

The structure is plastic, as are the protections of propellers. Will it be strong enough? We will only know by trying it. The battery to power the device is a Lipo 2S 7.4V 300 mAh. The data sheet indicates the weight accurately, once is not customary. The Babyhawk weighs 60 grams without radio receiver, battery and protections of propellers. The latter add 8 grams. The battery weighs an additional 18 grams, or 86 grams in total. What to take off? A small radio receiver ... The Babyhawk from Emax will be offered at less than 95 € at Banggood (with the port but without taxes).

Additionally, if you happen need to purchase some rc drone parts, you can search via Banggood website, which is one of the wholesale platform to provide affordable prices, such as 25c battery, diy rc quadcopter, etc. 


Eachine Falcon 120, the test

It is a very small racer in X, with brushless engines, which can fly indoors ... but by proceeding to a home-destroying session. More seriously, it is a machine intended for outdoor flights, a small perfect car for nervous flights without the need for vast spaces. Note that this device was given to us by the Banggood shop. As usual, tell us if you think the practice has influenced our judgment.

Tour of the owner

The Falcon 120 deserves its name, it measures 12 cm diagonal of motor motor. It is made of a main carbon plate drawn in X, with a thickness of 2 millimeters. Under this plate is glued a thickness of foam. The central block has been thought to be compact, it is stackable, or "stackable" in English. It is made of 3 floors. The first is an ESC 4 in 1, a Racerstar RS20A model which as shown offers 4 ESC of 20A compatible in 2S, 3S and 4S, BLheli_S, Oneshot42, Multishot, DShot600. The top floor is the flight controller, a SP Racing F3 model on the Falcon 120 that I tested. The last stage is a carbon plate on which the camera is fixed, with the help of a hinge designed to tilt it. The camera is a 700TVL model with an angle of 127 °. Under the plate is housed the video transmitter, featuring a RP-SMA angled connector and a short base mushroom antenna. It is a transmitter with a power of 200 mW, so it is too powerful for French regulation. It transmits over 40 channels, including the ImmersionRC Raceband.

Continuation of tour

On the plate, on the outside, is the AFHDS 2A 2.4 GHz radio receiver for a Flysky radio control in the RTF version of the Falcon 120. The floors are held by metallic red aluminum spacers. At the rear of the machine is a bar of 6 LEDs centered around a buzzer. Under the device comes an XT60 plug for the battery. Which is to place under the device, without nacelle, with a scratch Velcro. The engines are Racerstar BR1306 to 3500KV delivered with 3-inch quadrilateral propellers (3030-4). The battery supplied with the Falcon 120 is a Lipo 3S 11.1V 850 mAh, with an XT60 plug. The weight of the Falcon 120, without its battery, is 149.32 grams. The supplied battery adds 83.11 grams. Or 232.5 grams in order of flight.

Before taking off

As always, it is prudent to go check the parameters of the device, taking the precaution to remove the propellers. A microUSB connector is located on the back right side of the center block. It is located just in front of the axis of an engine, which makes the insertion of a USB cable a bit difficult. The firmware of the flight controller is Betaflight, version 3.0.1. All settings were made at the factory: PIDs, spleens, channels, etc. All that remains is to choose the arming method and the switch for the choice of the flight modes. The Failsafe must also be adjusted. It is quite easy, on the side of the radio control, a Eachine i6 (a Flysky FS-i6), since the protocol is the AFHDS 2A which supports the Failsafe.

First take-off

It happens in direct sight flight, as usual. The behavior of the Falcon 120 in Angle (stabilized) mode is very bright, almost too much for novice pilots. But we do it quickly. The machine is generally stable, however there are some oscillations, probably PIDs which can be improved. In Horizon mode, the angle grip is fast, allowing barrels and looping in a pocket handkerchief. Visual flight is the opportunity to adjust the video frequency. The principle is simple, a button on the video transmitter, not super simple access, allows to pass the 40 channels of the 5.8 GHz sequentially. It is a bit painful, especially since there is no visual indicator of the frequency and band chosen.

Additionally, if you happen need to purchase some rc drone parts, you can search via Banggood website, which is one of the wholesale platform to provide affordable prices, such as AA 400mAH Rechargeable Battery, 4PCS AAA Battery, etc.  

Friday, January 20, 2017

Walkera Vitus Review

The responsiveness of Chinese industry is impressive. Hardly has DJI's Mavic Pro come out, and finally available in quantities that satisfy the pre-orders, here is another Chinese manufacturer, Walkera, announces a similar device, at least on the look side. The resemblance is astonishing, with motor arms with different heights that fold under the main structure, and with a small radio remote control. Is the photocopy successful? Difficult to say as long as the device has not been tested. Especially since, based on our experience, the Walkera units are of very variable quality depending on the model.

Characteristics

This quadricopter weighs 870 grams (with its battery), a little more than the Mavic Pro - it will not escape the law drones of October 2016. It is equipped with a positioning system GPS and Glonass, 3 sensors to The front for obstacle detection and avoidance, and an optional vertical camera. The camera at the front is mounted on a stabilized platform on 3 axes, a bit like the Karma of GoPro. Capable of filming in 4K at 30 frames per second, it is not miniaturized like that of the Mavic Pro, but rather a footprint similar to that of the GoPro Hero Session. It is connected to a 1080p digital video transmission system. The battery of the Vitus is a Lipo 3S of 5200 mAh which ensures, according Walkera, a autonomy of 25 minutes. The dimensions ? It measures, unfolded, 25,5 cm in length, 27,5 cm in width, 11 cm in height. Folded, it measures 23.6 x 11.5 x 8.8 cm.

And…

The Walkera photocopier also retained the back of the DJI Inspire to imagine the look of the Vitus fairing. The small format radio breaks with the previous huge models like the Devo F12. The influence of the Mavic Pro is obvious: the new Devo F8-S is compact, minimalist (without display), with supports for a mobile phone. Not in front of the radio as for the Mavic Pro, but above. It was necessary to distinguish, at least a little. The Vitus is controllable from the remote control to take advantage of the precision of its joysticks and a beautiful range, but it can also be controlled from a smartphone, at the price of a lower range. The software offering promises automated flights with waypoints, and virtual reality games that get embedded on real-time video feedback. When? How many ? Walkera promises availability for March 2017, with a price around $ 600 (excluding taxes). 
Additionally, if you happen need to purchase some rc quads, you can choose Banggood, which is one of the wholesale platform to provide affordable prices, such as cheerson quadcopter, cx-20 firmware, etc. 


Eachine Chaser88 Review

The Chaser88 is a 12 cm diagonal motor engine, barely bigger than the innumerable brushed racers from Eachine. But it stands out with brushless motors, from 1103 to 10 000 KV equipped with 2-inch propellers, the 2030, powered by a 4x6A ESP 4 in 1 Blade-S compatible 1S and 2S (and Dshot600). The whole is orchestrated by a flight controller F3 Mini under Betaflight 1.3.1. The FPV part is provided by a camera combo and video transmitter which looks very much like a Eachine EF-01 without its case.

So…

The camera is an 800TVL with an angle of 150 ° protected by a plastic arch, combined with a 5.8 GHz transmitter of 40 channels (including the ImmersionRC Racenband) and a power of 25 mW. The unit is supplied without a battery. You need a Lipo 1S or a 2S with an XT30 plug, knowing that Eachine recommends a Lipo 2S of 450 mAh and 30C. The bonuses? A LED at the back and a buzzer ... The weight? 67 grams without the battery, about 90 grams with. It will be necessary to add a radio receiver to complete the machine and take off. The Eachine Chaser88 will be offered at just over € 115 at Banggood (with the port, without taxes).

Additionally, if you happen need to purchase some rc quad parts, you can choose Banggood, which is one of the wholesale platform to provide affordable prices, such as lipo battery checker, fhss transmitter, etc. 

Thursday, January 19, 2017

Wtotoy Warm Hand Glove Review

If you tried to fly in very cold weather, you probably appreciated that the battery life is a little shorter than usual. Flying with mittens is not super practical. Flying with gloves still passes, but those who allow it ... do not really protect from the cold. One of the solutions is the Warm Hand Glove. A kind of giant glove in which you place the radio control and both your hands.

Inside ?

It's silky, it's soft, it's a synthetic fur that keeps warm. A transparent plastic window of 20 x 18 cm allows to see the screen and the joysticks. Interesting, especially if this accessory does not produce fog - it is still to be verified. Be careful, the switches can be operated by mistake. Compatibility is assured with medium-sized radio controls (type Taranis, DX6i, FS-i6, etc.). It's worth a try, the Warm Hand Glove costs about 14 € at Banggood (with port but duty free).

Additionally, if you need to purchase some rc drone parts, you can search via Banggood website, which is one of the wholesale platform to provide affordable prices, such as jst charger, 4 in 1 multiprotocol, etc.



4-in-1 Eachine DVR03 VTX FPV Camera Review

Eachine DVR03 VTX Camera is one kind of 4-in-1 AIO FPV camera, which integrated with the functions of FPV transmitter, FPV camera, FPV antenna and DVR. It has a super mini size and light weight that is useful and practical if you installed it on your rc drones. 

On the top of it, there is a four leaf antenna. Made of RHCP circular polarization clover, it is anti-rust and provides a strong signal. Then, the main part is the camera. It is configured with a 520 TVL camera with a 1/4 " CMOS sensor and 120-degree FOV viewing angle. And it adopts the M7 camera lens with a diameter of 10mm. 

Moreover, it has a 5.8Ghz 72CH FPV transmitter, supporting 0/25mW/50mW/200mW switchable. By the way, you can know the operating conditions via the LED display. Except for that, the creative design of DVR function allows the images to be acquired and recorded in real time.

Specifications:

FPV Camera:
Brand name: Eachine
Sensor: 1/4 " CMOS
Resolution: 1MP
Viewing angle: 120° FOV
Format: NTSC / PAL switching
Power consumption: 700mA( typical)
Power supply: 3.2-5.5V
Video format: AVI
Recording Size: 1280 * 720 @ 30fps
Video output resolution: 640 * 480
Lens mirror diameter: M7 lens 10mm
FPV Transmitter:
Support memory card: Max 32G (CLASS10)
Support video format: NTSC / PAL switch
Output impedance: 55Ω
Output signal strength: 14 ± 1dbmdBm
Output power: 25mW 14dBm
Output power: 50mW 17dBm
Output power: 200mW 23dBm
Wireless channel: 72CH
Operating voltage: 3.2-5.5 V
Working temperature: -10 - 60 ℃
25 mW Current: 640-330 mA
50mW Current: 730-410mA
200 mW Current: 860-553 mA
Audio carrier: None
Weight: 6.8g
Size: 30.3mm * 18.4mm * 11mm (without antenna, lens)

Feature: 
4 In 1 AIO design, Super mini size and light weight
0/25mw/50mw/200mw Switchable
With DVR function, images can be acquired and recorded in real time.

If you are interested in it, you can purchase it via Banggood website. It is only sold $ 28.99. By the way, if you happen need to purchase some FPV products, you also can choose Banggood, it will provide you with high-quality products at best prices, such as Frsky RX8R receiver, EV800 Goggle, etc. On the occasion of new year’ s coming, Banggood provides a 35% off coupon in FPV System & Multi Rotor part( in US warehouse) to the customers from Jan 3rd, 2017 to Jan 31st, 2017. The coupon code is RC35. You should catch this good chance!

Wednesday, January 4, 2017

How to make teddy bears? Secret

Teddy bear has long ceased to be just a toy for kids. Today, such a lovely soft friend is not averse to get girls and adults. A century ago bears as mascots carried in the flights and pilots. What is the secret of the popularity of these toys, and what is their story? How to make teddy bears today? All this is discussed later. 

Homeland teddy bears 

In fact, the question is moot because the prototypes of modern bears were "born" almost at the same time in Germany and in the United States. Of course, it makes no sense to compare how the teddy bears do now, and how they were made then. In the early twentieth century (1902-1904 gg -. But when the toy bears gain fame) Bruins sewed by hand. It uses only natural material. A teddy bear, or rather, their ancestors, were made of fur, but then, because of its impracticality, drew attention to the felt, wool and, of course, plush, which had previously only been used as upholstery for furniture. Stuffed toys wood chips or copra. 

German Margaret Steiff, being confined to a wheelchair, funny sewing bears his nephews. One of the boys - Richard - and had the idea to create a bear-like than normal inhabitant of the forest, and circus animals, able to walk on their hind legs and dance. The success was overwhelming: already in 1904, Steiff Company (a company created by Margaret and her family) won gold at the world of soft toys exhibition, held in the United States. And then there were new designs, branded metal button in the ear bears and conquest of hearts of millions of children and adults around the world. 

As for the American teddy bears, then they are bound to their appearance ... Theodore Roosevelt! In 1902 he participated in the hunt, but the production does not go to hand. Then the hunters catch the bear, tied him to a tree and asked Roosevelt honorable right shot. He, however, considered such behavior unsportsmanlike and refused to kill the animal. The next day it was in all the local newspapers. Cartoons of Roosevelt and cute bear saw spouse Morris Michtoma, the toy store owner. She was the author of the first teddy bears. The president was not against the use of nicknames in relation to the teddy bears and even made them his mascot during the second campaign. 

How to make teddy bears today? 

This question suggests itself when you look at the charming miniature teddy bears and giants offered toys shops. For example, the online storemishka4love.ruYou can buy your girl friend who will be with her about the same height (160 cm). Just think how much effort it takes to create such a large Toptygina! 

It all starts with design patterns (patterns). Next, the master transfer circuit parts (head, ears, legs, torso, tail) on the fabric. Cut the material carefully, touching only the substrate to prevent damage to the pile, or in connection parts places will bear "bald". Sew is also very carefully, tucking the plush inside, between the joined pieces of material. Hole for stuffing left in the area of the neck bears. The filler is usually used hollofayber or sintepuh. Next "hole" sew blind stitches and "camouflage" bow tied at the neck toys. This is a charming Potapych and ready! 

What makes teddy bears? 

Plush - a material resembling fur. It also consists of a substrate and a pile. Villi themselves may be single strings (cutting plush) or loops (the loop plush). Unscrupulous manufacturers, trying to ease the problem, simply paste the pile on the substrate. This bear will smell awful and shedding. Therefore, when choosing a soft friend for yourself, a child or a second half note to the villi were necessarily woven into the foundation. Only this bear has the right to call a teddy! 

Additionally, if you happen need to purchase the squishy toys, you can choose Banggood, which is one of the wholesale platform to provide affordable prices, for example, Squishy Strawberry Cake.

Helicomicro Cup Indoor, January 22nd!

Because the winter is still set for a while, and because it is itching to see pilots compete in the circuits, we have prepared an indoor event in the Paris region by the end of January 2017. It will be the Helicomicro Cup, It will happen in a volume of 40 x 20 x 8 meters which will host a double circuit for two categories of multirotors, those with brushed motors and those with brushless motorization.

The two categories?

The brushed multirotors will have to remain under the 120 mm diagonal of motor motor, and under the 80 grams in order of flight. The battery should be of 2S max, the video transmitter of the 25 mW max as required by the regulations and compatible Raceband to facilitate the flights to several. The brushless multirotors must not exceed 140 mm diagonal of motor motor, 220 grams in order of flight, a battery 4S max, propellers of 3 inches max, a transmitter of 25 mW and compatible Raceband. The races will be timed with Team BlackSheep's TBS Event Tracker.

Or ? When?

The Helicomicro Cup will be held in the Pierre et Marie Curie gymnasium in Meudon, near Paris. The circuits offer you some surprises! To keep up with the shock, you can count on Pizza Bell. It will be January 22, 2017 from 9:30 am to 6 pm. For who ? For all those who want to compete with other drivers, whether with nano machines like Tiny Whoop and their derivatives, Nano Racers, or much more frosted brushless devices that require sharp steering. The registration fee per category is set at € 10. Registration will soon be open on Rotormatch, here for brushed machines, there for brushless devices. The public is welcome, without prior registration!


Additionally, if you happen need to purchase some rc drone parts, you can choose Banggood website, which is one of the wholesale platform to provide affordable prices, such as blue sky monitors, Radiolink R12DS Dual Antenna Receiver, etc.