SKU: 92323138339

RAMPS 1.4 3D Printer Kit with Arduino Mega2560 + A4988 for RepRap Pololu SaintSm

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Description

RAMPS 1.4 3D Printer Kit with Arduino Mega2560 + A4988 for RepRap Pololu SaintSmRAMPS 1. 4 3D Printer Kit with Arduino Mega2560 + A4988 for RepRap Pololu SaintSm 3D Printer Controller RAMPS 1. 4 The RepRap Arduino compatible MEGA Pololu Shield, or RAMPS for short. It is designed to fit the entire electronics needed for a RepRap in one small package for low cost. RAMPS interfaces an Arduino compatible Mega with the powerful Arduino compatible MEGA platform and has plenty room for expansion. The modular design includes plug in

RAMPS 1.4 3D Printer Kit with Arduino Mega2560 + A4988 for RepRap Pololu SaintSm

 

3D Printer Controller RAMPS 1.4

 The RepRap Arduino-compatible MEGA Pololu Shield, or RAMPS for short. It is designed to fit the entire electronics needed for a RepRap in one small package for low cost. RAMPS interfaces an Arduino-compatible Mega with the powerful Arduino-compatible MEGA platform and has plenty room for expansion. The modular design includes plug in stepper drivers and extruder control electronics on an Arduino-compatible MEGA shield for easy service, part replacement, upgrade-ability and expansion. Additionally, a number of Arduino expansion boards can be added to the system as long as the main RAMPS board is kept to the top of the stack.

 

Version 1.4 uses surface mount capacitors and resistors to further cover edge issue cases.

 

Mega 2560 control board

the board 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 works.

Microcontroller
 

ATmega2560 Operating Voltage    5V

Input Voltage (recommended)        7-12V

Input Voltage (limits)                        6-20V

Digital I/O Pins                                 54 (of which 15 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 8 KB used by bootloader

SRAM                                                8 KB

EEPROM                                          4 KB

Clock Speed                                    16MHz

 

 A4988 driver module:

A4988 Stepper Motor Driver Board is  a breakout board for Allegro’s A4988 DMOS Microstepping Driver with Translator and Overcurrent Protection; please read the A4988 datasheet carefullybefore using this product.
Warning: Connecting or disconnecting a stepper motor while the driver is powered can destroy the driver. (More generally, rewiring anything while it is powered isasking for trouble.)
 
● Maximum output current is 1A
● Simple step and direction control interface
● Five different step resolutions: full-step, half-step, quarter-step, eighth-step, and sixteenth-step
● Adjustable current control lets you set the maximum current output with a potentiometer,which lets you use voltages above your stepper motor’s rated voltage to achieve higher step rates
● Intelligent chopping control that automatically selects the correct current decay mode (fast decay or slow decay)
● Over-temperature thermal shutdown, under-voltage lockout, and crossover-current protection
● Short-to-ground and shorted-load protection

 

Package included:

 

1 x 3D Printer Controller RAMPS 1.4

1 x Arduino Compatible Mega 2560 R3

5 x A4988 driver + Self Adhensive Heatsink

1 x USB cableand shorted-load protection



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Product ID: EP00114
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SKU: 92323138339

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4.3 ★★★★★
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Product Reviews
A
Verified Purchase
Amazon Customer
New York, US
★★★★★ 4
Trying times in Oxford Mississippi in 1933
Format: Kindle
The Calamity Club features a cast of strong women and several weak men. The official charitable women are not charitable and the unofficial ones are courageous and are filled with good will. Stockett weaves a long tale of poverty, desperation, determination and sisterly love. Only two sets of sisters are blood related but those who are not, bond by working together for a common purpose. Stockett serves up humor and pathos in equal measure with a dash or two of realism. Her character development makes The Calamity Club well worth reading Like The Help, a screenplay should be forthcoming.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 31, 2026
G
Verified Purchase
Ginger Russell
Grantham, US
★★★★★ 5
So Good!
Format: Hardcover
Some parts of this are reminiscent of The Help, but it is a brand new story. Even though it appears to be a LONG book (650 pages), it goes fast and is hard to put down. The story takes place in Mississippi in the 1930's. 24 year old Birdie travels to see her married sister in Oxford for the purpose of getting some financial help for her family. Her sister Frances married into a seemingly wealthy family, which for reasons that soon become clear, has now fallen on hard times. Eleven year old Meg lives in an orphanage and is treated badly by the volunteers that staff it. If her mom isn't going to come back and get her, then she wants to be adopted as soon as possible, but most people want babies, not older children. Charlie turns up at the house where Birdie is staying with her sister's family. She's bright and helpful, but what's her real story? How are they all connected? This story is at times hilarious and at other times heartbreaking. It has its share of villains, but most of the characters are likeable and you want them to succeed. Just HOW they succeed is the heart of the book, and I won't tell you and spoil the surprise. This is well worth reading, though, and I strongly recommend it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 18, 2026
D
Verified Purchase
DD
Omaha, US
★★★★★ 5
Outstanding book
Format: Kindle
I loved this book so much that I'm sad that I've finished it. The story is fascinating, the characters well developed and the themes were important and heart wrenching. This is definitely one of the best books I ever read. I can't summarize the story without spoilers and I would not want to deny you the opportunity to enjoy the unfolding of this beautiful story. This is a book I will not forget and I look forward to Kathryn Society's next wonderful book. She is a tremendous author. Thank you Kathryn for the gift of this book!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 31, 2026
B
Verified Purchase
Beverly
Los Angeles, US
★★★★★ 5
Worth the Wait
Format: Kindle
Kathryn Stockett's The Calamity Club is well worth the wait, just as good or even better than The Help. This historical novel has all the literary ingredients to be added to the classics. This book is both engaging and horrifying since it reveals the cruel beliefs in Mississippi's past and explains the rigid mind-set of contemporary politics and culture. I was incensed by the ignorance and lack of empathy. However, as throughout history, the theme of women helping other women gave the story conflict, suspense, and lots of humor. The characters and plot are so engaging I would like a follow-up story, maybe a part two. I am ready for a movie version, if Meg and Birdie are well cast. The Calamity Club was worth the wait!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 21, 2026
A
Verified Purchase
Amazon Customer
Los Angeles, US
★★★★★ 5
Entertaining
Format: Kindle
I read this book on Kindle in about 3 days. Birdie Calhoun, one of the main narrators, has got to be one of the most likable main characters a book could create. She’s practical, God-fearing, driven, smart, and loyal. Meg, the second narrator, is witty and humorous to listen to, especially since you’re seeing things through the eyes of an eleven year old orphan. There are a few big reveals throughout the book, and around the midpoint there is a shift in storyline which will tell you how the book got its name. I saw some reviews say the book is a bit long, which doesn’t bother me. I see how the length may be necessary given the fact that the author had to bounce between two separate story lines and then merge them in the end. My only feedback about the length would be there is a lot of time and detail during the middle of the book (especially Meg’s time with her adoptive family) but less time spent on the ending, leaving things a bit rushed and many characters’ fate ambiguous. I found myself wanting more closure for characters Frances & Mrs. Tartt, as well as the boarders such as Flossy. On a historical level, this book provides context for a dark time in America where society wanted to annex anyone deemed undesirable or peculiar, especially promiscuous women. Society was hyper focused on separating the pious from the “imbeciles” and punished anyone whose lives didn’t fit the perfect Christian mold. This caused characters like Frances and Mrs. Tartt to be obsessed with their reputation, and fear of tainted reputation is a huge factor in decision making amongst the main characters. Birdie, Meg, and Charlie seem to be the main characters willing to take huge risks and sacrifices for those that they love. This book inspired me to do some of my own research and I learned something new about American history.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 28, 2026

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