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

$ 76.35

SKU: HOB1732890 Category:

MK2B Heatbed Parameters
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 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
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
DRV8825 Stepper 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 PCB, 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 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
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 r3
Heatbed MK2B
12864 LCD Controller
DRV8825
Mechanical Switch
Cables

Weight 0.557 kg

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