GPL3 X Y E0 + - S T1 T0 D10 D9 + + + D8 UltiMachine reprap.org/wiki/RAMPS U GND 8 1 1 RESET MS1 MS1 MS1 MS1 MS2 MS2 MS2 MS3 MS3 MS3 MS3 + V1.4 2B 2A 1A 1B 2B 2A 1A 1B 2B 2A 1A 1B 2B 2A 1A 1B 11A+ + MS1 MS2 MS3 - T2 E1 Z 2B 2A 1A 1B - + SERVOS AUX-1 AUX-2 AUX-3 AUX-4 I2C 20 21 END STOPS - + s s - + PS 5A 1 1 1 1 1 1 1 1 GND D11 GND D2 D1 D6 A3 A4 A9 D63 D48 D42 A11 D65 A5 D59 A10 D64 D44 A12 D66 GND GND GND AUX-1 SERVOS D57 D58 AUX-2 GND D5 D4 GND D16 D17 D23 D25 D27 D29 D31 D33 D35 D37 D38 D41 D43 D45 D47 D32 GND AUX-4 5V 5V 5V 5V 5V 5V 5V 5V GND SCK MISO 5V NC D53 MOSI D49 D52 D50 D51 AUX-3 / SPI RAMPS 1.4 (RepRap Arduino MEGA Pololu Shield) reprap.org/wiki/RAMPS1.4 GPL v3 Copyright 2011 Johnny Russell - UltiMachine 11A 5A 12-35VDC In + + - - GND 5V 20 21 I2C D10 D9 D11 - - - + + + 12-35V Out Reversing input power, and inserting stepper drivers incorrectly will destroy electronics. + + + + 8 9 10 + + 1 1 - + PIN HEADER >NAME >VALUE RESISTOR chip >NAME >VALUE Aluminum electrolytic capacitors SMD (Chip) Long Life Vertical 153 CLV http://www.bccomponents.com/ >NAME >VALUE Aluminum electrolytic capacitors SMD (Chip) Long Life Vertical 153 CLV http://www.bccomponents.com/ >NAME >VALUE PIN HEADER >NAME 1 >VALUE Molded Package grid 2.54 mm >NAME >VALUE PIN HEADER >NAME >VALUE LITTLEFUSE Picofuse/slow Littelfuse >NAME >VALUE >NAME >VALUE EN MS1 MS2 MS3 RST STEP DIR Vmot GND 2B 2A 1A 1B VDD GND SLP >NAME >VALUE GND GND +5V RST VIN +3.3V 0 1 2 3 4 5 Analog In GND 13 12 11 AREF 10 9 8 7 6 5 4 3 2 TX RX 5V 22 24 26 28 30 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 31 52 53 GND DIGITAL 6 7 8 9 10 11 12 13 14 15 14 15 16 17 18 19 20 21 DIODE diameter 2.54 mm, horizontal, grid 10.16 mm >NAME >VALUE PHOENIX >NAME >VALUE 1 2 3 4 Hyper CHIPLED Hyper-Bright LED LB R99A Source: http://www.osram.convergy.de/ ... lb_r99a.pdf >NAME >VALUE PIN HEADER >NAME >VALUE >NAME >VALUE >NAME >VALUE >NAME >VALUE >NAME >VALUE RESISTOR chip >NAME >VALUE CAPACITOR chip >NAME >VALUE RESISTOR MELF 0.10 W >NAME >VALUE OMRON SWITCH >NAME >VALUE EAGLE Design Rules The default Design Rules have been set to cover a wide range of applications. Your particular design may have different requirements, so please make the necessary adjustments and save your customized design rules under a new name.