Geeetech GT2560 User Manual

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Users Manual of GT2560

Rev A+

Compiler: kris.mao Date: Jan04, 2016
Reviewer: Alina, Le mon Date: Jan04, 2016
Approver: Linda.Fan Date: Jan13, 2016

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Copyright Declaration

The copyright of this specification belongs to the Shenzhen GETECH CO., LTD. (hereinafter
referred to as the "Geeetech"), and all rights reserved. No part of this specification should be
reproduced or extracted in any forms or means without the prior written consent of Geeetech by any
company and individuals.

Technical Support

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where you can find anything you want about open source. To know more about our new products,
please visit www.geeetech.com, we will serve you wholeheartedly.

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1 Introduction

GT2560 is a compact board that is integrated with the mighty function of the Arduino Mega25
60+Ultimaker and Arduino Mega2560+ramps 1.4 on respect of both software and hardware and has
more premium features: the streamlined interfaces effectively avoid the unnecessary troubles, well­regulated compaction of components highly integrated saves more space and easier to be mounted o
n most applications.

5 stepper motors, swappable driving modules, mighty ATmega2560 processor with 256k mem
ory, 16MHz operating frequency, high-performance USB serial converter FT232RQ, all these make
the GT2560 an ideal option for a 3D printer control board. What’s more, GT2560 can run over 12V
to 24V which gives higher torque and higher rotation rate.

Features：

1.Integrated with the mighty function of the Arduino Mega2560+Ultimaker and Arduino
Mega2560+ramps 1.4 kit, The GT2560 can not only take full place the them on respect of both
software and hardware, but also features compact size, more convenient connection, and more
stable.

2. Adopt ATmega2560 as the main control chip, coupled with the high-performance USB serial
converter FT232RQ.

3. The power pack: operating voltage is 12V-24V; double power supply design feeds for
heatbed and logical part separately. The current is 15A for heatbed and 10A for other parts.

4. The main circuit adopts SMD fuse tube, the diode added to the power port can provide
reverse protection to the whole circuit, in addition, the 5V USB is USB port protected with 500mA
Recoverable fuse.

5． 3 12v fan output and one PWM output for LED or other lighting equipment.

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6. 3 55Amp MOSFET (with LED indicator, the actual output is restricted by the PCB board
and the connector), all 3 MOSFET are equipped with heat sink to ensure sufficient heat dissipation
and stable operation.

7. Support 5 A4988 stepper drivers (3 for X/Y/Z axis, and 2 for extruders); the subdivision of
stepper motor can be setup by dial switch, eliminating jumper caps, easier to operate.

8. 3 temperature sensor input (100k thermistor is recommended)

9. Extended LCD and SD card interface support both LCD2004 and LCD 12864, with which
you can print without your PC.

10. The firmware is the prevalent Marlin, which is known for stability, usability, and
high-performance.

Update log:

1. A 3-pin straight pin is added to connect with 3D touch auto leveling sensor.

2. The USB connector will not provide 5V for the board, if you need to refresh the firmware,
please provide external power supply.

3. The power port has been changed from hollow to solid one to provide higher
current-carrying capability.

4. The three heater connecter has been changed into blue ones: 2-pin RC301 5.0mm 15A

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1.1 Overview and Hardware Resources

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1-1(front and back images)

Hardware resources

12V/24V 15A and 12V/24V 10A power supply
1 power port for heatbed and 2 for extruder
5 stepper motor input, (3 for X/Y/Z axis, and 2 for extruders)
Extended LCD & SD card interface

6 endstop input(X-MIN ,Y-MIN ,Z-MIN 和 X-MAX ,Y-MAX ,Z-MAX)

3 input for thermistor (TEMP1, TEMP2 and TEMP3)
3 input for12V cooling fan

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1 PWM output
Dimension: 109mm*80mm*22mm

weight： 87 g

* The specifications of Pin connectors:
Motor: XH (2.54mm-4pin)
Fan: PH (2.00mm-3pin)
Endstop and thermistor: XH (2.54mm-2pin)

1.2 Software Resources

Compiling environment: Arduino IDE
Firmware: Marlin

Host software：Easy print Repeater-Host

1.3 Source

Arduino IDE：http://www.geeetech.com/wiki/index.php/Download

Marlin：http://www.geeetech.com/wiki/images/3/39/Marlin-Marlin_v1.zip

Repetier-Host： http://www.geeetech.com/wiki/images/3/36/SetupRepetierHost_1_00.zip

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2 Interfaces

2.1 Interface Layout

2-1

2.2 Interface specifications

1.DC IN： 12V-24V 15A and 12V-24V 10A

2. HOT_BED: heat bed

3. HEATER1: power supply for extruder 1

4. HEATER2: power supply for extruder 2