SKR 1.3 - Dual Extruder with single print-head

This is a basic tutorial on how to add a dual extruder with one print head on a SKR 1.3 with Marlin 2.0.x firmware using Platform IO.

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Configuring A4988 and DRV8825:
https://youtu.be/yLm7Yl8_QUU

Hardware:
2 - Nema 17 Stepper motors
1 - A4988
1 - DRV8825
1 - BigTreeTech SKR v1.3
1 - 12 V power supply
1 - Serial USB cable
1 - Heat bed
1 - 12 v fan
1 - Dual Color Switching Hotend

Documentation:
https://github.com/bigtreetech/BIGTREETECH-SKR-V1.3

Software:
Marlin Firmware 2.0.x
http://marlinfw.org/meta/download/

Installing PlatformIO on Atom for Marlin Firmware
http://marlinfw.org/docs/basics/install_platformio.html

Pronterface:
https://www.pronterface.com/

Видео SKR 1.3 - Dual Extruder with single print-head канала Ed's 3d Tech