Reprap Ramps 1.4 Kit with Mega 2560 r3 + Heatbed MK2B + 12864 LCD Controller + DRV8825 +Mechanical Switch +Cables for 3D Printer

     MK2B Heatbed

   MK2B is the latest and the best type of heatbed money can buy as of today. 100% compatible

   with all Prusa and Mendel 3d printer variants.

   Color: Red

   Size: 214mm x 214mm

   Etching: 35um copper

   Laminate: FR4 1.6mm

Ramps 1.4 Controller Board

   This list is Pololu trillion rupiah , or ramps short. It was designed as a low-cost small package

   RepRap needs to accommodate the entire electronics . Oblique interfaces with the powerful

   Arduino MEGA platform Arduino Mega , and have plenty of room for expansion. On the stepper

   drives and a Arduino MEGA shield extruder control electronics for easy maintenance , replacement

   parts , upgrades and expansion capabilities , including plug-in modular design . In addition, some

   Arduino expansion boards can be added to the system , as long as the main ramp plate is saved

   to the top of the stack .

   The board is mainly based on Adrian ‘s Pololu_Electronics and work Tonok ‘s . The proposed anti- Vick

   copper etching method . Vick is also inspired by the work of EasyDrivers . Adrian’sPololu_Electronics

   circuit design mainly based on Joaz RepRapSource.com provide initial pin definitions and many design

   improvements. Too much inspiration , advice, and from Prusajr, Kliment, Maxbots, Rick, and many other

   ideas RepRap community.

   It has Cartesian robots and regulations of the extruder .

   Extended to control other accessories.

   Heater / MOSFET outputs and three fan thermistor circuit.

   Integration of additional security 5A and component protection

   Control of additional heating bed 11A fuse

   Suitable for 5 Pololu stepper driver board

   Pololu board pin socket, so they can be easily replaced or removed for future designs .

   I2C and SPI pins left for future expansion.

   Hooked into all MOSFET PWM pin versatility.

   Servo type connector is used to connect to the end stop , the motor and the light-emitting diodes.

   These connectors are gold-plated , rated current of 3A, very compact.

   On the SD card to add – is now available from the Kliment – Sdramps

   LED indicate when the heater output

   Option 2 motors connected to Z Prusa Mendel

Mega 2560

   Microcontroller : ATmega2560

   Operating Voltage : 5V

   Input Voltage (recommended) : 7-12V

   Input Voltage (limits) : 6-20V

   Digital I/O Pins : 54 (of which 14 provide PWM output)

   Analog Input Pins : 16

   DC Current per I/O Pin : 40 mA

   DC Current for 3.3V Pin : 50 mA

   Flash Memory : 256 KB of which 4 KB used by bootloader

   SRAM : 8 KB

   EEPROM : 4 KB

12864 LCD Controller Board

   3D printers use LCD control panel, are ramps extension accessories. LCD control panel through

   which you can achieve spooling is the 3D model Gcode files are copied to the SD card, and then

   print the file via the LCD control panel. This version is an upgraded version of reprap smart controller.

DRV8825 Stepper Motor Driver

   The DRV8825 stepper motor driver carrier board TI DRV8825 micro bipolar stepper motor drive is

   a breakthrough. The module has a pinout and interface with our A4988 stepper motor driver carrier

   is almost the same, so it can be used as a better performance of the pull-down menu board

   replacement in many applications. DRV8825 features an adjustable current limit, overcurrent and

   overtemperature protection, six micro-resolution (down 1/32-step). It uses 8.2 – 45 V, can provide

   up to about 1.5 per phase no heat sink or forced air flow (rated up to 2.2 per volume sufficient

   additional cooling).

   A simple steps and direction control interface

   Six different steps resolutions: full step, half step, 1/4-step1/8-step1/16-step, 1/32-step

   CAN interface directly with 3.3 V and 5 V systems

   Over-temperature thermal shutdown, overcurrent shutdown, undervoltage lockout

   Short to ground short circuit load protection

   4 Layer 2 oz copper PCB, in order to improve heat dissipation

   Exposed solder ground below the bottom of the driver IC on the printed circuit board pad

   Module size, pin and interface matching A4988 stepper motor driver operators in many ways

   Adjustable current control lets you set a potentiometer, which lets you use the stepper motor’s

   rated voltage or more, in order to achieve a higher rate of maximum output current step

   Intelligent chopping control automatically selects the correct current decay mode (fast decay or

   slow decay)

   Maximum 45 V supply voltage

   Built-in voltage regulator (the need for any external logic supply voltage)

Limit Switch Endstop

   Quality switching elements.

   Customized high quality connection, using 22AWG wire, copper wire inside is very thick, can be

   resistant to current 2A, 300V voltage. An insulating layer over a wide range of temperatures, up to

   80 degrees. Is the common connection of thin copper wire can not match. Not easy to pull off, plug

   it convenient, for ease of use, plug the other side to do the one, you can use the direct plug.

   Red line connecting VCC (ramps of +)

   Connect the black wire GND (ramps of -)

   Green Line connection SIGNAL (ramps in s)

   tips: Under normal circumstances, the system must be configured to at least three mechanical switches.

   Pros: Easy to install, the more common styles.

   Disadvantages: easy to wear and tear of mechanical parts, service life is shorter