Wednesday, October 26, 2016

Eachine X73, the test

It is part of this new wave of nano-multirotors brushed intended for indoor flights. After several such models that served draft, we can expect close to perfection devices. Is this the case with this X73 Eachine? Note that the device was given to us by Banggood store. As usual, tell us if you think that the practice has influenced our judgment.

The X73, painted with a yellow cast, is based on a minimalist structure, a distribution plate which includes the flight controller and extending to arm engines. The advantage? dsc_0050-1200Il no apparent son, the feed motor is located within the plate. The motors, brushed models of 7 × 16 mm, are held by small pieces of transparent plastic screw after engine arm. To power, there is a mini JST nearby outlet, which allows for very tight supply son, about 1 cm. A good point: they will be easy to change if they fail. Propellers measuring 4.5 cm in diameter. A connector on the side of the flight controller allows connection to a computer - it is done by using the USB cable supplied in the box. A reset button for flashing the flight controller is right next to the USB connector.

The video part is provided by a camera placed in a plastic box. The whole is mounted on a kind of arch, which allowed Eachine place the radio receiver compatible with standard FrSky (Taranis) sandwiched between the flight controller and the camera housing support. A pairing button is present on board the receiver and antenna is connected with a UFL connector. Protrude from the housing that the goal in front and a spigot with a UFL connector for the antenna, strand, flexible type. A double good idea: the UFL connector can change quite easily antenna to replace, or to use a more effective, and the installed antenna is much less fragile than a mushroom-type antenna. At the back of the case is a row of dips that can choose the video frequency.

The camera is mounted on a hinge that allows the tilt ... at least that's what we think. But a feed wire from the camera to the main plate. It is too short to place the camera to the horizontal, and not allow the hinge further tilt the camera. Result: this hinge is useless! Protection of propellers is delivered already mounted, made of transparent plastic. The X73 comes without battery and You pick one, Eachine recommending Lipo 1S 3.7V and 350 mAh 25C. She slides under the unit with another plastic ark. Please note, the thickness of the battery should be 4.7 mm, not one more. The X73's dimensions are 10.5 x 10.5 x 5 cm and a weight of 27.7 grams without battery. 350 Mah battery with a Graupner, it goes to 37.9 grams.

Pairing with a radio Taranis is a matter of seconds. However, it is indispensable to enter the Cleanflight settings to ensure that controls are well associated with the movements of the joystick, the switches are supported. It must also check the arming method engine and set the failsafe. Eachine not book any manual or explanation. dsc_0054-1200Si you have never tasted a racer, or a device with Cleanflight, it's not easy, you have to immerse yourself in tutorials on the web. Better to get help in this case not to lose too much time fumbling. If you're used to Cleanflight, it will be set in seconds. The picture was completely blurred at first ignition, I had to turn the lens to obtain proper focus. The 5.8 GHz transmitter with a power of 25 mW is satisfactory, the range is correct, usual for this type of device. It is compatible with 40 5.8 GHz channels, including Raceband frequencies, but the list of dips and frequencies associated with them, present on the site of Banggood, is not accurate. Better to have a receiver with autosearch function not to spend time finding the right frequency, and also better not to have to change frequencies on the fly to perform multiple ...

When the engines are armed, some propellers rotate, others not, and sometimes others are reluctant to start. You can handle this in Cleanflight or rotating them at a lower threshold, or by cutting the engine until there is no gas. dsc_0001-1200La power that is obtained by pushing the gas is dependent on the battery that is used. With 350 mAh 10C Alpha 110 Graupner, thrust is correct for a range of 4 minutes and 3 seconds. With a 300 mAh 25C Chinese unbranded, thrust is better, but the autonomy takes a serious blow, with less than 3 minutes of flight. It is not better with a 600 mAh Chinese 20C, the thrust becomes very low and autonomy tops out at 2 minutes. It is disappointing, it is far from the nervousness of a Tiny Whoop or Alpha 110. Cleanflight settings are correct, the PID were treated since the device fits perfectly in stabilized flight without trembling and remains stable in acro mode. Stationary is easy to maintain, without interfering too much, and machine answers quite well to commands. That's the positive side of the X73 ...

Additionally, if you need to purchase some rc drones and accessories, you can search via Banggood website, which is one of the wholesale platform to provide affordable prices, such as micro brushless helicopter, fpv rc airplane rtf, etc. 

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