60V boost capability enables compatibility with high-power 3D printers for future-proof builds
Upgraded SMT32F429ZGT6 chip with 1MB memory provides faster processing and expanded memory for complex projects
Supports multiple communication interfaces including UART, SPI, and Step/dir for versatile control options
Integrated MAX31865 thermistor chip allows for accurate temperature monitoring and control
Onboard CNC fans and power failure protection ensure stable operation and safety during printing
Summarized by Shop
This is one sweet board, so sweet we carry two versions of it. The Octopus Pro has been boosted to 60V! Perfect for an all out, or future proof build.
The key difference between the 446 and the 429 variant is the 429 has an upgraded board (SMT32F429ZGT6) with 1M memory vs 512K with the 446.
From BTT:
Product Size: 160x100mm
Mounting S
Product Size
160 x 100 mm
Mounting Size
150 x 90 mm
Input Voltage
DC 15–28 V
Motor Input Voltage
12–60 V (each input is optional)
Driver Input Level
5 V
Main Control Chip
ARM Cortex M4 Series 6
Memory
1 MB (SMT32F429ZGT6 variant), 512 KB (variant with SMT32F446ZGT6)
Supported File Format
G-code
Supported Thermistor
NTC 100K/5
Expansion
2-wire and 4-wire PT100/PT1000, broken material detection
Summarized by Shop
5.0
4 ratings
5
4
3
2
1
Great affordable board
Nice replacement to my non pro that a burned up doing something dumb.
G
Gerardo · April 27, 2025
Flexible controller for every situation
I purchased this board for my first build and it was so excellent that I purchased a second. I use it in a 48V setup and it's got more than enough outputs for everything I need. The flexibility of being able to choose your voltage for steppers is a more flexible option than some other boards like the Kraken. This board exceeded my expectations.