BIGTREETECH SKR 3
Powerful mainboard with many interfaces
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Product information & technical details
- Manufacturer: BIGTREETECH
- Product type: Mainboards
Description
BIGTREETECH SKR 3 is a successor to the SKR 2 and has many new functions. This versatile 32-bit motherboard with powerful 480 Mhz ARM Cortex-M7 is suitable for most 3D printers and offers many interfaces and upgrade options compared to most built-in motherboards.
The motherboard is compatible with Klipper and Marlin open-source firmware.
480Mhz ARM Cortex-M7
BIGTREETECH SKR 3 uses a 32-bit ARM Cortex-M7 series STM32H743VIT6 chip with a core frequency of 480MHz, providing enough performance to handle even the most demanding user interfaces while enabling stutter-free printing.
DIY friendly
- BOOT0 facilitates DFU mode to flash firmware
- The upgraded thermistor input now requires no external module for P1000
- A universal WiFi modular port allows the use of RRF firmware
SKR 3 compared to SKR 2 and SKR 1.4
| Mainboard | SKR 3 | SKR 2 | SKR 1.4 |
| Main chip | STM32H743VIT6 | STM32F407VGT6 | LPC1768 |
|
Core frequency |
480MHz | 168MHz | 100MHz |
| Output current | 5A | 4A | 3A |
| CNC fan | 3 (24V, 12V, 5V optional) | 3 | 1 |
| PC interface | USB | USB | USB |
|
Firmware support |
Marlin, Klipper | Marlin, RepRap | Marlin |
|
Temperature sensor interface |
1-way 100K NTC, 2-way 100K NTC, PT1000 optional | TH0, TH1, TB, 3-Way 100K NTC (Thermistor) | TH0, TH1, TB, 3-way 100K NTC (Thermistor) |
| WiFi interface | ESP-12S, ESP-07S, ESP32 | ESP-12S, ESP-07S | ESP-01S |
| Reserved BOOT0 | Yes | no | no |
| Onboard EEPROM | Yes | no | no |
Product Specifications
| Product size | 110x85mm |
| Installation size | 102x76mm |
| Processor | ARM Cortex-M7 CPU STM32H743VIT6 |
| EEPROM | 24C32 32-Kbit |
|
Input voltage |
DC12V-DC24V |
|
Logic voltage |
DC 3.3V |
| Firmware | Marlin, Klipper |
| WiFi interfaces |
ESP-12S, ESP-07S, ESP32 |
| Fan interfaces | 3 CNC fans, 2 normal fans,
Optional CNC fan voltage |
|
Extension interfaces |
Servos, Probe, PS-ON, PWR-DET, Fil-DET, CAN FD |
| Motor drivers | TMC5160, TMC2209, TMC2225, TMC2226, TMC2208, TMC2130, ST820, LV8729, DRV8825, A4988, etc. |
|
Driver working modes |
SPI, UART, STEP/DIR |
| Motor driver outputs | X, Y, Z (Dual Z-axis), E0, E1, five-way |
| Heating interface | Heated bed (HB), heating cable (E0, E1) |
| Temperature sensor interface | 1-way 100K NTC, 2-way 100K NTC, PT1000 optional |
| PC interface | USB |
| File format | Gcode |
| 3D printer setup | XYZ, Delta, Kossel, Ultimaker, Corexy |
| Recommended software | Cura, Simplify3D, Pronterface, Repetier-host, Makerware |
| Screen | Serial touch screen, SPI touch screen, LCD display |
An image with the connections and the dimensions of the mainboard can be found in the pictures.
Customer Reviews
English reviews written for BIGTREETECH SKR 3
1 customer review in all languages
| 5 stars | | 1 | (100%) |
|---|---|---|---|
| 4 stars | | 0 | (0%) |
| 3 stars | | 0 | (0%) |
| 2 stars | | 0 | (0%) |
| 1 Stars | | 0 | (0%) |
1 review
We do not have any reviews in English yet, but we do have 1 review available in another language.
- No reviews available
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