BTT SKR Series¶

Overview¶

The BigTreeTech (BTT) SKR series represents a popular line of 32-bit mainboards designed for 3D printers. These boards offer a good balance of features, performance, and price, making them suitable for various printer configurations.

Available Models¶

SKR Mini E3 V3¶

Processor: STM32G0B1
Stepper Drivers: 4x TMC2209
Connectivity: USB, UART
Price Range: $
Best For: Entry-level printers, Ender 3 upgrades
Buy: Amazon , Biqu Offical Store West3d

SKR Pro V1.2¶

Processor: STM32F407
Stepper Drivers: 6x (configurable)
Connectivity: USB, UART, CAN
Price Range: $$
Best For: Mid-range printers, multi-extruder setups
Buy: Amazon , Biqu Offical Store

SKR 3¶

Processor: STM32F407
Stepper Drivers: 5x (configurable)
Connectivity: USB, UART
Price Range: $$
Best For: Standard printers, dual Z-axis setups
Buy: Amazon , Biqu Offical Store

SKR Pico¶

Processor: RP2040
Stepper Drivers: 4x (configurable)
Connectivity: USB, GPIO
Price Range: $
Best For: Entry-level printers, compact builds
Buy: amazon , Biqu Offical Store

Key Features¶

Hardware Features¶

32-bit processors (except SKR Pico)
Multiple stepper driver support
Various connectivity options
Expandable through expansion boards
Multiple fan outputs
Heated bed control
Endstop inputs

Software Support¶

Klipper firmware support
Marlin firmware support
Community firmware options
Extensive documentation
Active community support

Installation Guide¶

Basic Setup¶

Mount the board in your printer
Connect stepper motors
Connect endstops
Connect heaters and fans
Flash firmware

Configuration¶

Common Modifications¶

Expansion Options¶

CAN bus expansion
WiFi connectivity
Additional stepper drivers
Sensor integration

Community Mods¶

Custom cooling solutions
Power supply modifications
Additional connectivity options
Custom firmware features

Troubleshooting¶

Common Issues¶

Stepper motor issues
USB connectivity problems
Firmware flashing errors
Power supply issues

Solutions¶

References¶

BTT Official Documentation
Community Modifications Database
User Experience Reports

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