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diff --git a/docs/en/assemble_4.md b/docs/en/assemble_4.md
index 13c05241..509221b7 100644
--- a/docs/en/assemble_4.md
+++ b/docs/en/assemble_4.md
@@ -1,22 +1,31 @@
# Clever 4 assembly
+
+
## Frame base assembly
-1. Align two reinforcement carbon plates using the center notch.
-2. Install the top carbon deck using notches as guides.
+> **Info** To increase the strength of the frame, you can print on a 3D printer or cut on a laser cutter reinforcing pads.
+
+1. Mount the reinforcement pads on the stiffening ribs if you have them. Proceed without them if you don't.
+
+
+
+2. Align two carbon stiffening ribs using the center notch.
-
+
+
-
+
+
+
* Twist the cores.
* [Tin the wires](tinning.md). You may want to use tweezers to hold the wire.
@@ -33,7 +42,7 @@
3. Place the motor on the support arm.
4. Use hexagonal M3x5 screws to attach the motor to its arm.
-
+
Perform these actions for each motor.
@@ -41,15 +50,15 @@ Perform these actions for each motor.
1. Install the support arms on the frame base according to their rotation direction. Use notches as guides.
-
+
> **Hint** Note the motor nut colors when installing the arms. Motors with red nuts should be placed on the front right and back left arms, with black ones - on the front left and back right arms.
2. Attach the arms to the frame base using 8 M3x8 screws, 6 steel nuts, and 2 15 mm spacers.
-
+
+
-
+
+
+
+
+3. Make sure the arrow on the PDB is pointing in the same direction as the arrow on the top carbon deck.
## Soldering the speed controllers and the BEC
@@ -80,27 +90,19 @@ Perform these actions for each motor.
2. Solder the ESC power wires to the power distribution board (**red** to **«+»**, **black** to **«-»**).
-
+
+
-
+
+
-
-The following describes how to use your RC gear to check the motor direction.
-
### Setting up PWM mode on RC
Turn on your transmitter using the **POWER** slider. If the RC transmitter is locked, place all controls in their neutral position:
@@ -109,7 +111,7 @@ Turn on your transmitter using the **POWER** slider. If the RC transmitter is lo
2. Right stick should be **centered**.
3. The switches (A, B, C, D) should be in the **top position**.
-
+
Make sure the transmitter operates in the PWM mode:
@@ -130,14 +132,14 @@ Make sure the transmitter operates in the PWM mode:
5. The LED on the RC receiver should start to blink.
-
+
+
+
8. Wait for the **RXBind ok** message on the RC transmitter
9. Disconnect the binding jumper.
@@ -145,6 +147,10 @@ Make sure the transmitter operates in the PWM mode:
### Checking the motor rotation direction
+Motors with **red** nuts should rotate **counterclockwise**, the ones with **black** nuts should rotate **clockwise**. Correct rotation direction should also be printed on the motors. You can use a servo tester or your RC transmitter and receiver to check rotation direction.
+
+
+
1. Disconnect the battery pack and power down the transmitter.
2. Connect the signal wires from the ESC to CH3 pins on the output. The white wire should go to the top pin, the black one should go to the bottom one.
3. Power on the transmitter. Make sure the left stick is in the bottom position.
@@ -172,108 +178,119 @@ The flight controller expects PPM signal from your RC gear. Switch your transmit
## Mounting the flight controller plate
1. Attach four 6 mm standoffs on top of PDB.
+
+
+
2. Connect the flight controller power cable to the PDB.
+
+
+
3. Place the polycarbonate plate on the standoffs and fix them with plastic nuts.
-
-
-
-
## Mounting the flight controller
1. Insert the microSD card into your flight controller.
-
+
2. Align the flight controller so that the arrows on the controller and on the top carbon deck point in the same direction.
+
+
+
3. Attach the flight controller to the flight controller plate using 3M double-sided adhesive pads.
4. Connect the power cable to the **"POWER"** input of the flight controller.
-
+
+
-
+
+
-
+
+
-
+
+
-
+
+
+
2. Attach the Raspberry Pi using four standoffs.
+
+
+
3. Route the BEC wires through the channel in the top carbon deck.
-
-
-
4. Connect the BEC outputs according to the following image:
-
+
## Installing the LED strip on the LED strip ring
1. Check wires on the strip (and solder them on if they're missing)
-2. Attach the LED strip to the ring using the adhesive layer on the strip. Use zip ties to fix it in place.
-
-
+
+
+
## Connecting the LED strip to Raspberry Pi
1. Power the LED strip from a separate BEC. Connect the **«+»** and **«-»** leads to **5v** and **Ground** respectively.
-2. Connect the **D** lead to GPIO21 (consult the [relevant article](leds.md) for more information).
-
+
+
+
## Installing the camera cable
1. Open the slot connector by lifting the T-clip.
2. Insert the ribbon cable.
3. Press the T-clip down to secure the cable.
-
+
## Mounting the lower deck periphery
@@ -285,62 +302,68 @@ The flight controller expects PPM signal from your RC gear. Switch your transmit
3. Mount the laser rangefinder on the lower deck using two M3x8 screws and steel nuts.
-
+
+
+
5. Mount the lower deck assembly using four M3x10 screws.
+
+
+
6. Connect the camera ribbon cable to the camera.
-
-
-
-
+
## Mounting the landing gear
1. Attach 8 landing gear pieces using M3x10 screws and steel nuts.
-2. Attach dampening pads to the landing gear pieces using M3x10 screws and steel nuts.
-
+
+
+
## Connecting the cables
1. Connect RC cable to the **RCIN** port on the flight controller.
+
+
+
2. Connect RC cable to RC receiver.
-
+
+
+
+
2. Assemble the top part using twelve M3x10 screws.
-
-
-
3. Attach the assembly to the drone using four M3x10 screws and steel nuts.
-
+
+
-
-
4. Connect the flight controller to the Raspberry Pi using retractable USB cable.
-
+
+
+
-
-
+
+## Mounting the propellers and preparing for flight
+
+Perform the quadrotor components setup according to [the "Configuration" section](setup.md).
+
+> **Warning** Be sure to **not** mount the propellers **until the setup is complete**. Do it only when you are ready to fly.
+
+Attach the propellers according to their rotation direction. The battery should be disconnected duting propeller installation.
+
+
+
+
+
-## Mounting the propellers and preparing for flight
+Be sure to install and setup the voltage indicator before flying, so as not to overdischarge the battery. To configure the indicator, use the button located at its base. The displayed numbers during setup indicate the minimum possible voltage in each [cell](gloss.md#battery-cell) of the battery, the recommended value is **3.5**.
-Perform the quadrotor components setup according to [the "Configuration" section](setup.md).
+> **Info** Sound indication means that your battery is low and needs to be charged.
-> **Warning** Be sure to **not** mount the propellers **until the setup is complete**. Do it only when you are ready to fly.
-
-Attach the propellers according to their rotation direction. The battery should be disconnected duting propeller installation.
-
-
-
-
> **Success** The drone is ready to fly!
diff --git a/docs/ru/assemble_4.md b/docs/ru/assemble_4.md
index b990c46a..a40606cc 100644
--- a/docs/ru/assemble_4.md
+++ b/docs/ru/assemble_4.md
@@ -1,22 +1,31 @@
# Сборка Клевера 4
+
+
## Сборка основы для рамы
-1. Совместите 2 карбоновые пластины жесткости, используя центральные пазы.
-2. Используя пазы, установите сверху карбоновую центральную деку.
+> **Info** Для увеличения прочности рамы вы можете распечатать на 3D принтере или нарезать на лазерном резаке рем-накладки.
+
+1. В случае наличия, закрепите рем-накладки на пластинах жесткости, иначе продолжайте без них.
+
+
+
+2. Совместите 2 карбоновые пластины жесткости, используя центральные пазы.
-
+
+
-
+
+
+
* Скрутите медные жилы.
* [Залудите провода](tinning.md), используя пинцет.
@@ -33,23 +42,23 @@
3. Установите мотор на луч.
4. Прикрепите мотор к лучу винтами М3х5, используя шестигранный ключ или отвёртку.
-
+
Повторите эти действия для остальных моторов.
## Сборка рамы
-1. Установите 4 луча с моторами на базу рамы, используя пазы, согласно схеме вращения моторов.
+1. Установите 4 луча с моторами на базу рамы, используя пазы, согласно [схеме вращения моторов](#проверка-направления-вращения-моторов).
-
+
> **Hint** Для правильной установки моторов обратите внимание на цвета гаек. Моторы с красными гайками следует установить на передний правый и задний левый лучи, с чёрными - на передний левый и задний правый.
2. Зафиксируйте лучи на раме, используя 8 винтов М3х8 и 6 стальных гаек, а также 2 стойки "мама-мама" 15 мм.
-
+
+
-
+
+
+
+
+3. Стрелки на PDB и центральной деке должны быть направлены в одну сторону.
## Пайка регуляторов и ВЕС
@@ -80,27 +90,19 @@
2. Припаяйте силовые провода регуляторов к контактным площадкам платы (**красный** к **«+»**, **черный** к **«-»**).
-
+
+
-
+
+
-
-Использование радиоприёмника и пульта описано ниже.
-
### Перевод пульта в режим PWM
Включите пульт с помощью слайдера **POWER**. Если пульт заблокирован, необходимо перевести все стики в начальное положение:
@@ -109,7 +111,7 @@
2. Правый стик в **центре**.
3. Переключатели A, B, C, D в положение **"от себя"**.
-
+
Убедитесь, что PPM в меню RX Setup отключен:
@@ -124,20 +126,20 @@
### Сопряжение приёмника и пульта
1. Выключите пульт с помощью слайдера **POWER**.
-2. Подключите радиоприемник к разъему от BEC 5В. Чёрный провод подключите к одному из нижних пинов, красный - к одному из центральных.
+2. Подключите радиоприемник к разъему BEC 5В. Чёрный провод подключите к одному из нижних пинов, красный - к одному из центральных.
3. Установите джампер на вход (B/VCC).
4. Подключите АКБ.
5. Светодиод на радиоприемнике должен мигать.
-
+
+
+
8. Ждите синхронизации.
9. Отсоедините джампер.
@@ -145,6 +147,10 @@
### Проверка направления вращения моторов
+Моторы с **красными** гайками должны вращаться **против** часовой стрелки, с **чёрными** - **по** часовой стрелке. Правильные направления вращения также указаны на самих моторах. Для проверки направления вращения можно использовать серво-тестер или радиоприёмник с пультом.
+
+
+
1. Отключите АКБ и пульт.
2. Подключите сигнальный провод от ESC к выходу CH3 на приёмнике. Белый провод должен подходить к верхнему пину, чёрный - к нижнему.
3. Включите пульт. Левый стик должен быть в нижнем положении.
@@ -172,108 +178,119 @@
## Установка пластины для полётного контроллера
1. Установите 4 стойки "папа-мама" 6 мм на PDB.
+
+
+
2. Подключите шлейф питания к PDB.
+
+
+
3. Установите поликарбонатную пластину на стойки и зафиксируйте нейлоновыми гайками.
-
-
-
-
## Установка полётного контроллера
-1. Вставьте карту microSD в полётный контроллер
+1. Вставьте карту microSD в полётный контроллер.
-
+
2. Установите полетный контроллер на пластину с помощью двухстороннего скотча.
+
+
+
3. Стрелки на полетном контроллере и центральной деке должны быть направлены в одну сторону.
4. Подключите шлейф питания PDB к разъему *"POWER"* полетного контроллера, закрутив его в "косичку" для взаимной фиксации проводов.
-
+
+
-
+
+
-
+
+
-
+
+
-
+
+
+
2. Установите плату Raspberry Pi на стойки, используя 4 стойки "папа-мама".
+
+
+
3. Протяните провода от BEC через паз в центральной раме.
-
-
-
4. Подключите провод питания от BEC к Raspberry, согласно схеме:
-
+
## Установка светодиодной ленты на обруч
1. Проверьте наличие напаянных пинов на контактах ленты (при отсутствии - напаять).
-2. Установите светодиодную ленту на обруч (используя клеевой слой на ленте) так, чтобы контакты были в задней части коптера. Для дополнительной фиксации используйте **стяжки**.
-
-
+
+
+
## Подключение светодиодной ленты к Raspberry Pi
1. Питание для ленты берется от второго BEC. Подключите контакты *«-»* и *«+»* к *Ground* и *5v* на ленте соответственно.
-2. Подключите контакт *D* к GPIO-пину на Raspberry. Рекомендуется использовать пин GPIO21.
-
+
+
+
## Установка шлейфа для камеры
1. Поднимите защелку.
2. Подключите шлейф.
3. Закройте защелку.
-
+
## Установка оборудования на нижнюю монтажную деку
@@ -285,62 +302,68 @@
3. Установить на деку лазерный дальномер с помощью 2 винтов М3х8 и стальных гаек.
-
+
+
+
5. Установите нижнюю деку с помощью 4 винтов М3х10.
+
+
+
6. Подключите шлейф к камере.
-
-
-
-
+
## Монтаж ножек
1. Установите 8 ножек с помощью винтов М3х10 и стальных гаек.
-2. Установите демпфирующие прокладки на ножки с помощью винтов М3х10 и стальных гаек.
-
+
+
-
+## Подключение кабелей
+
+1. Подключите кабель радиоприемника в *RCIN* разъем полетного контроллера.
+
+
+
+2. Подключите кабель к приемнику, соответственно изображению.
+
+
+
+
+
2. Установите верхнюю часть, используя 12 винтов М3х10.
-
-
-
3. Установите защиту на коптер, с помощью 4 винтов М3х10 и стальных гаек.
-
+
+
-
-
4. Подключите USB кабель к разъему на полетном контроллере и USB разъему Raspberry Pi.
-
+
+
+
-
-
+
+## Установка пропеллеров и подготовка к полёту
+
+Произведите настройку компонентов квадрокоптера, используя раздел ["Настройка"](setup.md).
+
+> **Warning** Установка пропеллеров должна производиться **только после окончательной настройки коптера**, непосредственно перед полетом.
+
+Установите 4 пропеллера, согласно [схеме вращения](#проверка-направления-вращения-моторов). При установке пропеллеров АКБ должна быть отключена.
+
+При установке будте внимательны, чтобы пропеллер не был перевернут. На лицевой стороне пропеллера имеется маркировка его характеристик, а также направление вращения, которое должно совпадать с направлением вращения моторов.
+
+
+
+
+
-## Установка пропеллеров и подготовка к полёту
+Обязательно установите и настройте индикатор напряжения перед полетом, чтобы не переразрядить аккумулятор. Для настройки индикатора используйте конпку расположенную в его основании. Отображаемые цифры во время настройки обозначают минимально возможное напряжение в каждой [ячейке](gloss.md#ячейка--банка-акб) аккумулятора, рекомендуемое значение **3.5**.
-Произведите настройку компонентов квадрокоптера, используя раздел ["Настройка"](setup.md).
+> **Info** Звуковая индикация означает, что ваш аккумулятор разряжен и его нужно зарядить.
-> **Warning** Установка пропеллеров должна производиться **только после окончательной настройки коптера**, непосредственно перед полетом.
+
-Установите 4 пропеллера, согласно схеме вращения. При установке пропеллеров АКБ должна быть отключена.
-
-
-
-