BIGTREETECH Octopus V1.1 Control Board 32bit Silent Board Compatible TMC2209, TMC2240, TMC2208, TMC5160 Stepper Driver, Support DIY Klipper and Raspberry-Pi Online Printing for Voron 3D Printer

This board is great! I built a custom 3D printer last summer and this was the largest purchase I had to make, but it works flawlessly. It has plenty of headers for stepper motor drivers, which I needed because my machine has three independent Z axis motors, two for XY movement, and one for the extruder for a total of six stepper motors. With TMC-2209 drivers installed, the noise is comparable to my old sender 3 V2 printer, but it’s possible that I may be able to tune the printer to run at a lower noise level through the firmware. I don’t think this is a fault of the board, but of my specific use case. The board was relatively easy to install initially because I knew how all the main connectors were supposed to look beforehand. However, the documentation for this board was somewhat difficult to understand, and required a bit of extra research which I personally don’t mind. I appreciate the option to choose the voltage of each fan header, because I can use larger fans to cool this board and the other electronics near it, and smaller fans for the extruder and air circulation. I definitely recommend this board for a custom 3D printer build! It was easy to flash firmware to it via USB and it works well with a Raspberry Pi 4, if you’d like to go that direction.

The board was confusing as heck to flash new firmware on. Little to no documentation that works. But after a 3 day stent of throwing everything at it but the kitchen sink it finally flashed. It runs great and handled everything I have put it through so far with ease. Great Board.

The best upgrade I’ve made yet. I out this board in my ender 3 and it is wayyyyy over kill. Installation isn’t bad, but setting up the firmware is not beginner task, but is doable with patience. I found that configuring the firmware was a pain, because their is no config files for the ender 3, but uploading the firmware to the board was actually less difficult to do than with the creality boards.

I wanted to upgrade my 8 bit Anycubic Mega X board to a 32 bit board. I needed 5 motor drivers, but many of the boards only had room for 4. I considered the Spider but for about the same price decided on the Octopus. I was going to install Clipper so the added plus was that the BTT board had great documentation made it the logical. I paired the board with TMC2209 stepper drivers in uart mode and once wired up everything just works. Still have some tuning to do, but I am pleased with the way everything has worked out.

Could not flash firmware to the board. All LEDs are lit up red and hitting the reset button does nothing. Looks like the board never had a bootloader installed. I can connect to it via putty and see it with "lsusb" but will fail to flash the firmware. When you try to load it via micro USB, the LED lights up as it sees the card but no status flashing as if it was flashing. The firmware file never changes to "firmware.CUR". I filed for a replacement, I hope the next board works.

The first board I got didn't output to my RepRap display, but the replacement I ordered came in 2 days and seems to work with it. I'll update this review once I've finished my configuration, but so far so good.

I'm in the process of rebuilding a 4 printer farm, and am stdizing on the Octopus, some normal, some pro. All will be running klipper and all will have bananapi-m5's for management,

You get a ducky!