About RAMPS 1.4:
The RAMPS 1.4 board is designed to fit the entire electronics needed for a RepRap.
RAMPS interfaces an ArduinoMega with the powerful Arduino MEGA platform and has plenty room for expansion.
The modular design includes plug in stepper drivers and extruder control electronics on an ArduinoMEGA shield for easy service, part replacement, upgrade-ability and expansion.
Additionally, a number of expansion boards can be added to the system as long as the main RAMPS board is kept to the top of the stackMega 2560 R3 boardMega is an ATmega2560 as core microcontroller development board itself has 54 groups digital I / O input / output terminal (14 groups do PWM outputs), 16 sets of simulation than the input side, group 4 UARTs (hardware serial ports), using the 16 MHz crystal oscillator.With the bootloader, download the program directly via USB without having to go through other external writer.Supply part of the optional USB power, or as an external power using the AC-to-DC adapter and battery.Arduino development IDE interface is based on open-source principles, allows you to free download for use in project work, school teaching, motor control, interactive worksA4988 driverThis is a carrier board for Allegro's A4988 DMOS Microstepping Driver with Translator and Overcurrent Protection by Pololu.This stepper motor driver lets you control one bipolar stepper motor at up to 2 A output current per coilPackage included:1 x RAMPS 1.4 Board1 x Mega 2560 R3 Board5 x Soldered A4988 driver5 x Heatsink for A4988 driver1 x USB cable20 x Jumper Cap
If your product arrives damaged or is not working, you can return it to us within 3 days after delivery or 30 days after shipment in case the delivery date is not traceable.If the item is still within the validity period of this warranty:We will reimburse you for the return shipping fees after the defective item has arrived in our warehouse. Any further costs incurred during the return process will be at the customer's expense.If the item is outside the validity period of this warranty:The customer shall be held responsible for all the shipping fees and charges when returning the defective product.Return a DOA (dead on arrival) item If the item arrived broken, please contact us within 3 days from the delivery date and follow the procedure for the 3 Days Product Guarantee.If the item has a high value, we may ask you to return it. Please include all of its accessories, like cables, chargers, batteries, in the returned parcel. If an accessory or component is missing, we will ask you to pay for it. All the return shipping fees will be covered by us.