BTT GTR V1.0:Expand to 11 axis! A flexible and expandable 3d printer controller fit for tool changer

Characteristic
1)The motherboard uses a 32-bit 168MHz ARM-grade Cortex-M4 series STM32F407IGT6 chip, which greatly improves its performance;
2)Equipped with highly modular open source firmware Marlin 2.0, which is convenient for users to DIY and secondary development, eliminating the worries of being unable to master the core code;
3)Marlin 2.0 uses powerful development tools and Visual Studio Code integrated development environment: supports online debugging, which is more helpful for product development and performance optimization, and uses C / C ++ language development;
4)PCB board wiring is rigorous and beautiful, and specially optimized for heat dissipation;
5)Adopt special power supply chip, support 12-24V power input, the output current is 3A;
6)It can accept 24V input and reduce the hotbed current to 1/4 under the same power, effectively solving the heating problem of hot bed MOS tube;
7)Support all BIGTREETECH TFT touch screens, support LCD2004 screen, LCD12864 screen;
8)The system supports Chinese Simplified, English and other languages, which can be switched on your own;
9)Upgrade and configure firmware via SD card, simple and efficient operation;
10）Support serial WIFI printing;
11) 11 motor drivers：
BIGTREETECH GTR V1.0：6 motor drivers, 3 extruders, 3 CNC fans;
BIGTREETECH M5 V1.0: 5 motor drivers, 5 extruders, 5 CNC fans;
12) Supports functions such as resume printing while power off, filament detection, automatic shutdown after power off;
13) Adopt a high-performance MOSFET tube for better heat dissipation effect;
14) Using pluggable fuses, making the replacement process easier;
15) Reserved the expansion ports of BL Touch, PWM, ADC, UART, I2C, CAN;
16) Use the power supply selection design to separate the USB power supply from the switching power supply, avoiding the situation where the computer's USB port is burned due to short circuit;
17) The special function interface uses conspicuous pin headers, which greatly reduces the error rate of wiring;
18) Support offline printing and online printing;
19) Support dual Z-axis printers (tandem dual Z)
20) BIGTREETECH GTR V1.0: 1 K-type thermocouple;
BIGTREETECH M5 V1.0: 1 K-type thermocouple;
21) Support on-board SD card printing function;
22) On-board EEPROM;
23) Support Raspberry Pi and GTR motherboard online to realize WEB (webpage) side control printing;
24) Signal isolation processing for PWM, STEP, DIR, and master;
25) Add TVS to the power input for protection.

GitHub:

[rogalewskip]

this is a monster board! I can't even imagine what to do with 11 axis!

[SusiBiker]

I love that it is expandable and that you can fit your choice of stepsticks. It's the last feature that is the must have for me - having fried a driver on a certain other board (with non-removable chips) after a stepper-cable developed a broken wire fault. The back-emf voltage blew out the driver.
The other make of board is really good, but the embedded drivers can be a weak point. I can't wait to get my grubby paws on the BTT GTR V1.0!! 😃
I think this system may corner the market as long as the price is not silly money. Well done!! 👍👍

[dragontype]

Time to put a stepper in each corner of the bed for true auto bed leveling, 3 extruders, and independent dual z! 😂

[shawnkratos]

im thinking we need a 6 axis home cnc design for this beast.

[sean-ciof]

cant wait to do 8 extrude tool changer

[andreasc.]

Nice, a double-Z-printer with 4 or 5 extruders (instead of MMU) will take place on it ... i'm waiting for it, ordered it today in the morning ...

[MrGrayFJ]

Just watch out for this board firmware. It states on Platformio.ini: PLATFORM " STM32 7.2.0 > STM32F407ZG (192k RAM. 1024k Flash" and the hardware says STM32 F407IGT6.
Tuns out to be lots of features but lots more of BUGS. Also only works with they modified Marlin. At last: We know very well the China Manuals and Assistance.

[santiagodiaz]

which one is best? GTR 1.0 or SKR PRO 1.1? I want to buy a new board and i dont know wihch one should i buy

[krypticvoyce]

Do any of your boards work for a delta style printer. I used an skr mini on my ender3 and love it I would love to put one in my flsun qqs pro

[karatkdj]

Can the expander board be used with other SKR mother boards?

[mosher]

this board has on board eeprom memory, but provided firmware doesn't utilize it

[JSunBurns]

You are confusing the word "realize" with the word "achieve".

[kaydlabs]

can you send a working marlin config? github version is not working

[alonsorealivazquez]

I want it, please post a link to buy it, I see several bigtreetech stores in aliexpress, which one is legit?

[reneeberty]

Just bought one and SD CARD is not working though, and BIGTREETECH does not like to support customers, been sending email with no luck, Twitter every where but still no response! Yeah more like SHITTREETECH