====MKS Gen V1.4 3D====

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KeyeStudio MKS Gen V1.4 3D clone.

This is controller board designed for 3D printers but can be used for
whatever purpose.

It supports 5 stepper motors using easy to buy controllers.

This type of board is known as a RAMPS controller since it contains
an ATmega2560 compatible with [[:boards:mega2560|Arduino]].


===Pinout===


__GPIO__

<WRAP group>
<WRAP 150px column>
Stepper 1
^E0 ^ Arduino ^ AVR ^
|STEP       |26| PA4 |
|DIR        |28| PA6 |
|ENABLE     |24| PA2 |
</WRAP>
<WRAP 150px column>
Stepper 2
^E1 ^ Arduino ^ AVR ^
|STEP       |36|PC1 |
|DIR        |34|PC3 |
|ENABLE     |30|PC7 |
</WRAP>
</WRAP>

<WRAP group>
<WRAP 150px column>
Stepper 3
^X ^ Arduino ^ AVR ^
|STEP       |54|PF0 |
|DIR        |55|PF1 |
|ENABLE     |38|PD7 |
</WRAP>
<WRAP 150px column>
Stepper 4
^Y ^ Arduino ^ AVR ^ 
|STEP       |60| PF6|
|DIR        |61| PF7|
|ENABLE     |56| PF2|
</WRAP>
<WRAP 150px column>
Stepper 5
^Z ^ Arduino ^ AVR ^
|STEP       |46|PL3 |
|DIR        |48|PL1 |
|ENABLE     |62|PK0 |
</WRAP>
</WRAP>

__MOTOR__

A `generic' cable from eBay (these vary)

<code>
Factory    Centre pair swapped
A+ RED     A+ RED
A- GREEN   A- BLUE
B- BLUE    B- GREEN
B+ BLACK   B+ BLACK
</code>

My generic cable has A- B- twisted at the motor (JST) end so not usable with my motor
on this board without swapping the centre pair of cables (at either end).

For JST, just lift the plastic tooth and pull the cable out, very simple.

__PORT__

<code>
1  2  3  4
2B 2A 1A 1B
B+ B- A- A+
B  G  B  R    BLACK GREEN BLUE RED
</code>

__MICROSTEPPING__

Jumpers select the micro-stepping mode which will default to
32 microsteps/step for a DRV8825.
===Schematic ===

The {{boards:mks_gen_v1.4_004_sch.pdf|Schematic}} has a missing
pull-up resistor of 100K on the SLEEP/RESET pins (named SLP) on each motor controller
unit which keeps each controller awake and out of reset.

===Resources===

[[https://www.keyestudio.com/products/keyestudio-3d-mks-gen-v14-printer-motherboard-control-board-for-arduino-3d-printer|Product page]]

[[https://github.com/makerbase-mks/MKS-GEN|Original product]]