Reprap Ramps 1.4 Kit with Mega 2560 r3 + Heatbed MK2B + 12864 LCD Controller + 5*DRV8825 + 6*Mechanical Switch with Cables for 3D Printer

MK2B Heatbed :

● MK2B is the latest and the best type of heatbed money can buy as of today.
● with all Prusa and Mendel 3d printer variants.
● Size: 214mm x 214mm
● Etching: 35um copper
● Laminate: FR4 1.6mm

Ramps 1.4 Controller Board

● 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 driver board
● Pololu board pin socket, so they can be easily replaced or removed for future designs .
● I2C and 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

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
● Current per I/O Pin : 40 mA
● Current for 3.3V Pin : 50 mA
● Flash Memory : 256 KB of which 4 KB used by bootloader
● SRAM : 8 KB
● EEPROM : 4 KB

DRV8825 Motor Driver

● 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).
● 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 , in order to improve heat dissipation
● Exposed solder ground below the bottom of the driver IC on the printed circuit board pad
● Adjustable current control lets you set a potentiometer, which lets you use the 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

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.
Package Included:
Reprap Ramps 1.4 Kit with Mega 2560 r3Heatbed MK2B12864 LCD ControllerDRV8825Mechanical SwitchCables


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